Merge commit 'v2.6.37-rc1' into kbuild/kbuild

102 files changed, 3157 insertions, 5663 deletions

diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig
index 480f28127f09..6100ec0fa1d4 100644
--- a/fs/xfs/Kconfig
+++ b/fs/xfs/Kconfig
@@ -22,6 +22,7 @@ config XFS_FS
 config XFS_QUOTA
 	bool "XFS Quota support"
 	depends on XFS_FS
+	select QUOTACTL
 	help
 	  If you say Y here, you will be able to set limits for disk usage on
 	  a per user and/or a per group basis under XFS.  XFS considers quota
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index c8fb13f83b3f..0dce969d6cad 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -87,11 +87,9 @@ xfs-y				+= xfs_alloc.o \
 				   xfs_trans_buf.o \
 				   xfs_trans_extfree.o \
 				   xfs_trans_inode.o \
-				   xfs_trans_item.o \
 				   xfs_utils.o \
 				   xfs_vnodeops.o \
-				   xfs_rw.o \
-				   xfs_dmops.o
+				   xfs_rw.o
 
 xfs-$(CONFIG_XFS_TRACE)		+= xfs_btree_trace.o
 
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 9f769b5b38fc..b2771862fd3d 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -225,7 +225,7 @@ xfs_check_acl(struct inode *inode, int mask)
 	struct posix_acl *acl;
 	int error = -EAGAIN;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_check_acl(ip);
 
 	/*
 	 * If there is no attribute fork no ACL exists on this inode and
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 34640d6dbdcb..c9af48fffcd7 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -21,19 +21,12 @@
 #include "xfs_inum.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_trans.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
-#include "xfs_btree.h"
 #include "xfs_error.h"
 #include "xfs_rw.h"
 #include "xfs_iomap.h"
@@ -92,18 +85,15 @@ void
 xfs_count_page_state(
 	struct page		*page,
 	int			*delalloc,
-	int			*unmapped,
 	int			*unwritten)
 {
 	struct buffer_head	*bh, *head;
 
-	*delalloc = *unmapped = *unwritten = 0;
+	*delalloc = *unwritten = 0;
 
 	bh = head = page_buffers(page);
 	do {
-		if (buffer_uptodate(bh) && !buffer_mapped(bh))
-			(*unmapped) = 1;
-		else if (buffer_unwritten(bh))
+		if (buffer_unwritten(bh))
 			(*unwritten) = 1;
 		else if (buffer_delay(bh))
 			(*delalloc) = 1;
@@ -212,23 +202,17 @@ xfs_setfilesize(
 }
 
 /*
- * Schedule IO completion handling on a xfsdatad if this was
- * the final hold on this ioend. If we are asked to wait,
- * flush the workqueue.
+ * Schedule IO completion handling on the final put of an ioend.
  */
 STATIC void
 xfs_finish_ioend(
-	xfs_ioend_t	*ioend,
-	int		wait)
+	struct xfs_ioend	*ioend)
 {
 	if (atomic_dec_and_test(&ioend->io_remaining)) {
-		struct workqueue_struct *wq;
-
-		wq = (ioend->io_type == IO_UNWRITTEN) ?
-			xfsconvertd_workqueue : xfsdatad_workqueue;
-		queue_work(wq, &ioend->io_work);
-		if (wait)
-			flush_workqueue(wq);
+		if (ioend->io_type == IO_UNWRITTEN)
+			queue_work(xfsconvertd_workqueue, &ioend->io_work);
+		else
+			queue_work(xfsdatad_workqueue, &ioend->io_work);
 	}
 }
 
@@ -272,11 +256,25 @@ xfs_end_io(
 	 */
 	if (error == EAGAIN) {
 		atomic_inc(&ioend->io_remaining);
-		xfs_finish_ioend(ioend, 0);
+		xfs_finish_ioend(ioend);
 		/* ensure we don't spin on blocked ioends */
 		delay(1);
-	} else
+	} else {
+		if (ioend->io_iocb)
+			aio_complete(ioend->io_iocb, ioend->io_result, 0);
 		xfs_destroy_ioend(ioend);
+	}
+}
+
+/*
+ * Call IO completion handling in caller context on the final put of an ioend.
+ */
+STATIC void
+xfs_finish_ioend_sync(
+	struct xfs_ioend	*ioend)
+{
+	if (atomic_dec_and_test(&ioend->io_remaining))
+		xfs_end_io(&ioend->io_work);
 }
 
 /*
@@ -309,6 +307,8 @@ xfs_alloc_ioend(
 	atomic_inc(&XFS_I(ioend->io_inode)->i_iocount);
 	ioend->io_offset = 0;
 	ioend->io_size = 0;
+	ioend->io_iocb = NULL;
+	ioend->io_result = 0;
 
 	INIT_WORK(&ioend->io_work, xfs_end_io);
 	return ioend;
@@ -358,7 +358,7 @@ xfs_end_bio(
 	bio->bi_end_io = NULL;
 	bio_put(bio);
 
-	xfs_finish_ioend(ioend, 0);
+	xfs_finish_ioend(ioend);
 }
 
 STATIC void
@@ -500,7 +500,7 @@ xfs_submit_ioend(
 		}
 		if (bio)
 			xfs_submit_ioend_bio(wbc, ioend, bio);
-		xfs_finish_ioend(ioend, 0);
+		xfs_finish_ioend(ioend);
 	} while ((ioend = next) != NULL);
 }
 
@@ -614,31 +614,30 @@ xfs_map_at_offset(
 STATIC unsigned int
 xfs_probe_page(
 	struct page		*page,
-	unsigned int		pg_offset,
-	int			mapped)
+	unsigned int		pg_offset)
 {
+	struct buffer_head	*bh, *head;
 	int			ret = 0;
 
 	if (PageWriteback(page))
 		return 0;
+	if (!PageDirty(page))
+		return 0;
+	if (!page->mapping)
+		return 0;
+	if (!page_has_buffers(page))
+		return 0;
 
-	if (page->mapping && PageDirty(page)) {
-		if (page_has_buffers(page)) {
-			struct buffer_head	*bh, *head;
-
-			bh = head = page_buffers(page);
-			do {
-				if (!buffer_uptodate(bh))
-					break;
-				if (mapped != buffer_mapped(bh))
-					break;
-				ret += bh->b_size;
-				if (ret >= pg_offset)
-					break;
-			} while ((bh = bh->b_this_page) != head);
-		} else
-			ret = mapped ? 0 : PAGE_CACHE_SIZE;
-	}
+	bh = head = page_buffers(page);
+	do {
+		if (!buffer_uptodate(bh))
+			break;
+		if (!buffer_mapped(bh))
+			break;
+		ret += bh->b_size;
+		if (ret >= pg_offset)
+			break;
+	} while ((bh = bh->b_this_page) != head);
 
 	return ret;
 }
@@ -648,8 +647,7 @@ xfs_probe_cluster(
 	struct inode		*inode,
 	struct page		*startpage,
 	struct buffer_head	*bh,
-	struct buffer_head	*head,
-	int			mapped)
+	struct buffer_head	*head)
 {
 	struct pagevec		pvec;
 	pgoff_t			tindex, tlast, tloff;
@@ -658,7 +656,7 @@ xfs_probe_cluster(
 
 	/* First sum forwards in this page */
 	do {
-		if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh)))
+		if (!buffer_uptodate(bh) || !buffer_mapped(bh))
 			return total;
 		total += bh->b_size;
 	} while ((bh = bh->b_this_page) != head);
@@ -692,7 +690,7 @@ xfs_probe_cluster(
 				pg_offset = PAGE_CACHE_SIZE;
 
 			if (page->index == tindex && trylock_page(page)) {
-				pg_len = xfs_probe_page(page, pg_offset, mapped);
+				pg_len = xfs_probe_page(page, pg_offset);
 				unlock_page(page);
 			}
 
@@ -761,7 +759,6 @@ xfs_convert_page(
 	struct xfs_bmbt_irec	*imap,
 	xfs_ioend_t		**ioendp,
 	struct writeback_control *wbc,
-	int			startio,
 	int			all_bh)
 {
 	struct buffer_head	*bh, *head;
@@ -832,19 +829,14 @@ xfs_convert_page(
 			ASSERT(imap->br_startblock != DELAYSTARTBLOCK);
 
 			xfs_map_at_offset(inode, bh, imap, offset);
-			if (startio) {
-				xfs_add_to_ioend(inode, bh, offset,
-						type, ioendp, done);
-			} else {
-				set_buffer_dirty(bh);
-				unlock_buffer(bh);
-				mark_buffer_dirty(bh);
-			}
+			xfs_add_to_ioend(inode, bh, offset, type,
+					 ioendp, done);
+
 			page_dirty--;
 			count++;
 		} else {
 			type = IO_NEW;
-			if (buffer_mapped(bh) && all_bh && startio) {
+			if (buffer_mapped(bh) && all_bh) {
 				lock_buffer(bh);
 				xfs_add_to_ioend(inode, bh, offset,
 						type, ioendp, done);
@@ -859,14 +851,12 @@ xfs_convert_page(
 	if (uptodate && bh == head)
 		SetPageUptodate(page);
 
-	if (startio) {
-		if (count) {
-			wbc->nr_to_write--;
-			if (wbc->nr_to_write <= 0)
-				done = 1;
-		}
-		xfs_start_page_writeback(page, !page_dirty, count);
+	if (count) {
+		if (--wbc->nr_to_write <= 0 &&
+		    wbc->sync_mode == WB_SYNC_NONE)
+			done = 1;
 	}
+	xfs_start_page_writeback(page, !page_dirty, count);
 
 	return done;
  fail_unlock_page:
@@ -886,7 +876,6 @@ xfs_cluster_write(
 	struct xfs_bmbt_irec	*imap,
 	xfs_ioend_t		**ioendp,
 	struct writeback_control *wbc,
-	int			startio,
 	int			all_bh,
 	pgoff_t			tlast)
 {
@@ -902,7 +891,7 @@ xfs_cluster_write(
 
 		for (i = 0; i < pagevec_count(&pvec); i++) {
 			done = xfs_convert_page(inode, pvec.pages[i], tindex++,
-					imap, ioendp, wbc, startio, all_bh);
+					imap, ioendp, wbc, all_bh);
 			if (done)
 				break;
 		}
@@ -981,7 +970,7 @@ xfs_aops_discard_page(
 		 */
 		error = xfs_bmapi(NULL, ip, offset_fsb, 1,
 				XFS_BMAPI_ENTIRE,  NULL, 0, &imap,
-				&nimaps, NULL, NULL);
+				&nimaps, NULL);
 
 		if (error) {
 			/* something screwed, just bail */
@@ -1009,7 +998,7 @@ xfs_aops_discard_page(
 		 */
 		xfs_bmap_init(&flist, &firstblock);
 		error = xfs_bunmapi(NULL, ip, offset_fsb, 1, 0, 1, &firstblock,
-					&flist, NULL, &done);
+					&flist, &done);
 
 		ASSERT(!flist.xbf_count && !flist.xbf_first);
 		if (error) {
@@ -1032,50 +1021,66 @@ out_invalidate:
 }
 
 /*
- * Calling this without startio set means we are being asked to make a dirty
- * page ready for freeing it's buffers.  When called with startio set then
- * we are coming from writepage.
+ * Write out a dirty page.
+ *
+ * For delalloc space on the page we need to allocate space and flush it.
+ * For unwritten space on the page we need to start the conversion to
+ * regular allocated space.
+ * For any other dirty buffer heads on the page we should flush them.
  *
- * When called with startio set it is important that we write the WHOLE
- * page if possible.
- * The bh->b_state's cannot know if any of the blocks or which block for
- * that matter are dirty due to mmap writes, and therefore bh uptodate is
- * only valid if the page itself isn't completely uptodate.  Some layers
- * may clear the page dirty flag prior to calling write page, under the
- * assumption the entire page will be written out; by not writing out the
- * whole page the page can be reused before all valid dirty data is
- * written out.  Note: in the case of a page that has been dirty'd by
- * mapwrite and but partially setup by block_prepare_write the
- * bh->b_states's will not agree and only ones setup by BPW/BCW will have
- * valid state, thus the whole page must be written out thing.
+ * If we detect that a transaction would be required to flush the page, we
+ * have to check the process flags first, if we are already in a transaction
+ * or disk I/O during allocations is off, we need to fail the writepage and
+ * redirty the page.
  */
-
 STATIC int
-xfs_page_state_convert(
-	struct inode	*inode,
-	struct page	*page,
-	struct writeback_control *wbc,
-	int		startio,
-	int		unmapped) /* also implies page uptodate */
+xfs_vm_writepage(
+	struct page		*page,
+	struct writeback_control *wbc)
 {
+	struct inode		*inode = page->mapping->host;
+	int			delalloc, unwritten;
 	struct buffer_head	*bh, *head;
 	struct xfs_bmbt_irec	imap;
 	xfs_ioend_t		*ioend = NULL, *iohead = NULL;
 	loff_t			offset;
-	unsigned long           p_offset = 0;
 	unsigned int		type;
 	__uint64_t              end_offset;
 	pgoff_t                 end_index, last_index;
 	ssize_t			size, len;
 	int			flags, err, imap_valid = 0, uptodate = 1;
-	int			page_dirty, count = 0;
-	int			trylock = 0;
-	int			all_bh = unmapped;
+	int			count = 0;
+	int			all_bh = 0;
 
-	if (startio) {
-		if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
-			trylock |= BMAPI_TRYLOCK;
-	}
+	trace_xfs_writepage(inode, page, 0);
+
+	ASSERT(page_has_buffers(page));
+
+	/*
+	 * Refuse to write the page out if we are called from reclaim context.
+	 *
+	 * This avoids stack overflows when called from deeply used stacks in
+	 * random callers for direct reclaim or memcg reclaim.  We explicitly
+	 * allow reclaim from kswapd as the stack usage there is relatively low.
+	 *
+	 * This should really be done by the core VM, but until that happens
+	 * filesystems like XFS, btrfs and ext4 have to take care of this
+	 * by themselves.
+	 */
+	if ((current->flags & (PF_MEMALLOC|PF_KSWAPD)) == PF_MEMALLOC)
+		goto redirty;
+
+	/*
+	 * We need a transaction if there are delalloc or unwritten buffers
+	 * on the page.
+	 *
+	 * If we need a transaction and the process flags say we are already
+	 * in a transaction, or no IO is allowed then mark the page dirty
+	 * again and leave the page as is.
+	 */
+	xfs_count_page_state(page, &delalloc, &unwritten);
+	if ((current->flags & PF_FSTRANS) && (delalloc || unwritten))
+		goto redirty;
 
 	/* Is this page beyond the end of the file? */
 	offset = i_size_read(inode);
@@ -1084,50 +1089,33 @@ xfs_page_state_convert(
 	if (page->index >= end_index) {
 		if ((page->index >= end_index + 1) ||
 		    !(i_size_read(inode) & (PAGE_CACHE_SIZE - 1))) {
-			if (startio)
-				unlock_page(page);
+			unlock_page(page);
 			return 0;
 		}
 	}
 
-	/*
-	 * page_dirty is initially a count of buffers on the page before
-	 * EOF and is decremented as we move each into a cleanable state.
-	 *
-	 * Derivation:
-	 *
-	 * End offset is the highest offset that this page should represent.
-	 * If we are on the last page, (end_offset & (PAGE_CACHE_SIZE - 1))
-	 * will evaluate non-zero and be less than PAGE_CACHE_SIZE and
-	 * hence give us the correct page_dirty count. On any other page,
-	 * it will be zero and in that case we need page_dirty to be the
-	 * count of buffers on the page.
- 	 */
 	end_offset = min_t(unsigned long long,
-			(xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT, offset);
+			(xfs_off_t)(page->index + 1) << PAGE_CACHE_SHIFT,
+			offset);
 	len = 1 << inode->i_blkbits;
-	p_offset = min_t(unsigned long, end_offset & (PAGE_CACHE_SIZE - 1),
-					PAGE_CACHE_SIZE);
-	p_offset = p_offset ? roundup(p_offset, len) : PAGE_CACHE_SIZE;
-	page_dirty = p_offset / len;
 
 	bh = head = page_buffers(page);
 	offset = page_offset(page);
 	flags = BMAPI_READ;
 	type = IO_NEW;
 
-	/* TODO: cleanup count and page_dirty */
-
 	do {
 		if (offset >= end_offset)
 			break;
 		if (!buffer_uptodate(bh))
 			uptodate = 0;
-		if (!(PageUptodate(page) || buffer_uptodate(bh)) && !startio) {
-			/*
-			 * the iomap is actually still valid, but the ioend
-			 * isn't.  shouldn't happen too often.
-			 */
+
+		/*
+		 * A hole may still be marked uptodate because discard_buffer
+		 * leaves the flag set.
+		 */
+		if (!buffer_mapped(bh) && buffer_uptodate(bh)) {
+			ASSERT(!buffer_dirty(bh));
 			imap_valid = 0;
 			continue;
 		}
@@ -1135,19 +1123,7 @@ xfs_page_state_convert(
 		if (imap_valid)
 			imap_valid = xfs_imap_valid(inode, &imap, offset);
 
-		/*
-		 * First case, map an unwritten extent and prepare for
-		 * extent state conversion transaction on completion.
-		 *
-		 * Second case, allocate space for a delalloc buffer.
-		 * We can return EAGAIN here in the release page case.
-		 *
-		 * Third case, an unmapped buffer was found, and we are
-		 * in a path where we need to write the whole page out.
-		 */
-		if (buffer_unwritten(bh) || buffer_delay(bh) ||
-		    ((buffer_uptodate(bh) || PageUptodate(page)) &&
-		     !buffer_mapped(bh) && (unmapped || startio))) {
+		if (buffer_unwritten(bh) || buffer_delay(bh)) {
 			int new_ioend = 0;
 
 			/*
@@ -1161,15 +1137,15 @@ xfs_page_state_convert(
 				flags = BMAPI_WRITE | BMAPI_IGNSTATE;
 			} else if (buffer_delay(bh)) {
 				type = IO_DELAY;
-				flags = BMAPI_ALLOCATE | trylock;
-			} else {
-				type = IO_NEW;
-				flags = BMAPI_WRITE | BMAPI_MMAP;
+				flags = BMAPI_ALLOCATE;
+
+				if (wbc->sync_mode == WB_SYNC_NONE)
+					flags |= BMAPI_TRYLOCK;
 			}
 
 			if (!imap_valid) {
 				/*
-				 * if we didn't have a valid mapping then we
+				 * If we didn't have a valid mapping then we
 				 * need to ensure that we put the new mapping
 				 * in a new ioend structure. This needs to be
 				 * done to ensure that the ioends correctly
@@ -1177,14 +1153,7 @@ xfs_page_state_convert(
 				 * for unwritten extent conversion.
 				 */
 				new_ioend = 1;
-				if (type == IO_NEW) {
-					size = xfs_probe_cluster(inode,
-							page, bh, head, 0);
-				} else {
-					size = len;
-				}
-
-				err = xfs_map_blocks(inode, offset, size,
+				err = xfs_map_blocks(inode, offset, len,
 						&imap, flags);
 				if (err)
 					goto error;
@@ -1193,19 +1162,11 @@ xfs_page_state_convert(
 			}
 			if (imap_valid) {
 				xfs_map_at_offset(inode, bh, &imap, offset);
-				if (startio) {
-					xfs_add_to_ioend(inode, bh, offset,
-							type, &ioend,
-							new_ioend);
-				} else {
-					set_buffer_dirty(bh);
-					unlock_buffer(bh);
-					mark_buffer_dirty(bh);
-				}
-				page_dirty--;
+				xfs_add_to_ioend(inode, bh, offset, type,
+						 &ioend, new_ioend);
 				count++;
 			}
-		} else if (buffer_uptodate(bh) && startio) {
+		} else if (buffer_uptodate(bh)) {
 			/*
 			 * we got here because the buffer is already mapped.
 			 * That means it must already have extents allocated
@@ -1213,8 +1174,7 @@ xfs_page_state_convert(
 			 */
 			if (!imap_valid || flags != BMAPI_READ) {
 				flags = BMAPI_READ;
-				size = xfs_probe_cluster(inode, page, bh,
-								head, 1);
+				size = xfs_probe_cluster(inode, page, bh, head);
 				err = xfs_map_blocks(inode, offset, size,
 						&imap, flags);
 				if (err)
@@ -1233,18 +1193,16 @@ xfs_page_state_convert(
 			 */
 			type = IO_NEW;
 			if (trylock_buffer(bh)) {
-				ASSERT(buffer_mapped(bh));
 				if (imap_valid)
 					all_bh = 1;
 				xfs_add_to_ioend(inode, bh, offset, type,
 						&ioend, !imap_valid);
-				page_dirty--;
 				count++;
 			} else {
 				imap_valid = 0;
 			}
-		} else if ((buffer_uptodate(bh) || PageUptodate(page)) &&
-			   (unmapped || startio)) {
+		} else if (PageUptodate(page)) {
+			ASSERT(buffer_mapped(bh));
 			imap_valid = 0;
 		}
 
@@ -1256,8 +1214,7 @@ xfs_page_state_convert(
 	if (uptodate && bh == head)
 		SetPageUptodate(page);
 
-	if (startio)
-		xfs_start_page_writeback(page, 1, count);
+	xfs_start_page_writeback(page, 1, count);
 
 	if (ioend && imap_valid) {
 		xfs_off_t		end_index;
@@ -1275,131 +1232,30 @@ xfs_page_state_convert(
 			end_index = last_index;
 
 		xfs_cluster_write(inode, page->index + 1, &imap, &ioend,
-					wbc, startio, all_bh, end_index);
+					wbc, all_bh, end_index);
 	}
 
 	if (iohead)
 		xfs_submit_ioend(wbc, iohead);
 
-	return page_dirty;
+	return 0;
 
 error:
 	if (iohead)
 		xfs_cancel_ioend(iohead);
 
-	/*
-	 * If it's delalloc and we have nowhere to put it,
-	 * throw it away, unless the lower layers told
-	 * us to try again.
-	 */
-	if (err != -EAGAIN) {
-		if (!unmapped)
-			xfs_aops_discard_page(page);
-		ClearPageUptodate(page);
-	}
-	return err;
-}
+	if (err == -EAGAIN)
+		goto redirty;
 
-/*
- * writepage: Called from one of two places:
- *
- * 1. we are flushing a delalloc buffer head.
- *
- * 2. we are writing out a dirty page. Typically the page dirty
- *    state is cleared before we get here. In this case is it
- *    conceivable we have no buffer heads.
- *
- * For delalloc space on the page we need to allocate space and
- * flush it. For unmapped buffer heads on the page we should
- * allocate space if the page is uptodate. For any other dirty
- * buffer heads on the page we should flush them.
- *
- * If we detect that a transaction would be required to flush
- * the page, we have to check the process flags first, if we
- * are already in a transaction or disk I/O during allocations
- * is off, we need to fail the writepage and redirty the page.
- */
-
-STATIC int
-xfs_vm_writepage(
-	struct page		*page,
-	struct writeback_control *wbc)
-{
-	int			error;
-	int			need_trans;
-	int			delalloc, unmapped, unwritten;
-	struct inode		*inode = page->mapping->host;
-
-	trace_xfs_writepage(inode, page, 0);
-
-	/*
-	 * Refuse to write the page out if we are called from reclaim context.
-	 *
-	 * This is primarily to avoid stack overflows when called from deep
-	 * used stacks in random callers for direct reclaim, but disabling
-	 * reclaim for kswap is a nice side-effect as kswapd causes rather
-	 * suboptimal I/O patters, too.
-	 *
-	 * This should really be done by the core VM, but until that happens
-	 * filesystems like XFS, btrfs and ext4 have to take care of this
-	 * by themselves.
-	 */
-	if (current->flags & PF_MEMALLOC)
-		goto out_fail;
-
-	/*
-	 * We need a transaction if:
-	 *  1. There are delalloc buffers on the page
-	 *  2. The page is uptodate and we have unmapped buffers
-	 *  3. The page is uptodate and we have no buffers
-	 *  4. There are unwritten buffers on the page
-	 */
-
-	if (!page_has_buffers(page)) {
-		unmapped = 1;
-		need_trans = 1;
-	} else {
-		xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
-		if (!PageUptodate(page))
-			unmapped = 0;
-		need_trans = delalloc + unmapped + unwritten;
-	}
-
-	/*
-	 * If we need a transaction and the process flags say
-	 * we are already in a transaction, or no IO is allowed
-	 * then mark the page dirty again and leave the page
-	 * as is.
-	 */
-	if (current_test_flags(PF_FSTRANS) && need_trans)
-		goto out_fail;
-
-	/*
-	 * Delay hooking up buffer heads until we have
-	 * made our go/no-go decision.
-	 */
-	if (!page_has_buffers(page))
-		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
-
-	/*
-	 * Convert delayed allocate, unwritten or unmapped space
-	 * to real space and flush out to disk.
-	 */
-	error = xfs_page_state_convert(inode, page, wbc, 1, unmapped);
-	if (error == -EAGAIN)
-		goto out_fail;
-	if (unlikely(error < 0))
-		goto out_unlock;
-
-	return 0;
+	xfs_aops_discard_page(page);
+	ClearPageUptodate(page);
+	unlock_page(page);
+	return err;
 
-out_fail:
+redirty:
 	redirty_page_for_writepage(wbc, page);
 	unlock_page(page);
 	return 0;
-out_unlock:
-	unlock_page(page);
-	return error;
 }
 
 STATIC int
@@ -1413,65 +1269,27 @@ xfs_vm_writepages(
 
 /*
  * Called to move a page into cleanable state - and from there
- * to be released. Possibly the page is already clean. We always
+ * to be released. The page should already be clean. We always
  * have buffer heads in this call.
  *
- * Returns 0 if the page is ok to release, 1 otherwise.
- *
- * Possible scenarios are:
- *
- * 1. We are being called to release a page which has been written
- *    to via regular I/O. buffer heads will be dirty and possibly
- *    delalloc. If no delalloc buffer heads in this case then we
- *    can just return zero.
- *
- * 2. We are called to release a page which has been written via
- *    mmap, all we need to do is ensure there is no delalloc
- *    state in the buffer heads, if not we can let the caller
- *    free them and we should come back later via writepage.
+ * Returns 1 if the page is ok to release, 0 otherwise.
  */
 STATIC int
 xfs_vm_releasepage(
 	struct page		*page,
 	gfp_t			gfp_mask)
 {
-	struct inode		*inode = page->mapping->host;
-	int			dirty, delalloc, unmapped, unwritten;
-	struct writeback_control wbc = {
-		.sync_mode = WB_SYNC_ALL,
-		.nr_to_write = 1,
-	};
+	int			delalloc, unwritten;
 
-	trace_xfs_releasepage(inode, page, 0);
+	trace_xfs_releasepage(page->mapping->host, page, 0);
 
-	if (!page_has_buffers(page))
-		return 0;
-
-	xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
-	if (!delalloc && !unwritten)
-		goto free_buffers;
+	xfs_count_page_state(page, &delalloc, &unwritten);
 
-	if (!(gfp_mask & __GFP_FS))
+	if (WARN_ON(delalloc))
 		return 0;
-
-	/* If we are already inside a transaction or the thread cannot
-	 * do I/O, we cannot release this page.
-	 */
-	if (current_test_flags(PF_FSTRANS))
+	if (WARN_ON(unwritten))
 		return 0;
 
-	/*
-	 * Convert delalloc space to real space, do not flush the
-	 * data out to disk, that will be done by the caller.
-	 * Never need to allocate space here - we will always
-	 * come back to writepage in that case.
-	 */
-	dirty = xfs_page_state_convert(inode, page, &wbc, 0, 0);
-	if (dirty == 0 && !unwritten)
-		goto free_buffers;
-	return 0;
-
-free_buffers:
 	return try_to_free_buffers(page);
 }
 
@@ -1481,9 +1299,9 @@ __xfs_get_blocks(
 	sector_t		iblock,
 	struct buffer_head	*bh_result,
 	int			create,
-	int			direct,
-	bmapi_flags_t		flags)
+	int			direct)
 {
+	int			flags = create ? BMAPI_WRITE : BMAPI_READ;
 	struct xfs_bmbt_irec	imap;
 	xfs_off_t		offset;
 	ssize_t			size;
@@ -1498,8 +1316,11 @@ __xfs_get_blocks(
 	if (!create && direct && offset >= i_size_read(inode))
 		return 0;
 
-	error = xfs_iomap(XFS_I(inode), offset, size,
-			     create ? flags : BMAPI_READ, &imap, &nimap, &new);
+	if (direct && create)
+		flags |= BMAPI_DIRECT;
+
+	error = xfs_iomap(XFS_I(inode), offset, size, flags, &imap, &nimap,
+			  &new);
 	if (error)
 		return -error;
 	if (nimap == 0)
@@ -1579,8 +1400,7 @@ xfs_get_blocks(
 	struct buffer_head	*bh_result,
 	int			create)
 {
-	return __xfs_get_blocks(inode, iblock,
-				bh_result, create, 0, BMAPI_WRITE);
+	return __xfs_get_blocks(inode, iblock, bh_result, create, 0);
 }
 
 STATIC int
@@ -1590,61 +1410,59 @@ xfs_get_blocks_direct(
 	struct buffer_head	*bh_result,
 	int			create)
 {
-	return __xfs_get_blocks(inode, iblock,
-				bh_result, create, 1, BMAPI_WRITE|BMAPI_DIRECT);
+	return __xfs_get_blocks(inode, iblock, bh_result, create, 1);
 }
 
+/*
+ * Complete a direct I/O write request.
+ *
+ * If the private argument is non-NULL __xfs_get_blocks signals us that we
+ * need to issue a transaction to convert the range from unwritten to written
+ * extents.  In case this is regular synchronous I/O we just call xfs_end_io
+ * to do this and we are done.  But in case this was a successfull AIO
+ * request this handler is called from interrupt context, from which we
+ * can't start transactions.  In that case offload the I/O completion to
+ * the workqueues we also use for buffered I/O completion.
+ */
 STATIC void
-xfs_end_io_direct(
-	struct kiocb	*iocb,
-	loff_t		offset,
-	ssize_t		size,
-	void		*private)
+xfs_end_io_direct_write(
+	struct kiocb		*iocb,
+	loff_t			offset,
+	ssize_t			size,
+	void			*private,
+	int			ret,
+	bool			is_async)
 {
-	xfs_ioend_t	*ioend = iocb->private;
+	struct xfs_ioend	*ioend = iocb->private;
 
 	/*
-	 * Non-NULL private data means we need to issue a transaction to
-	 * convert a range from unwritten to written extents.  This needs
-	 * to happen from process context but aio+dio I/O completion
-	 * happens from irq context so we need to defer it to a workqueue.
-	 * This is not necessary for synchronous direct I/O, but we do
-	 * it anyway to keep the code uniform and simpler.
-	 *
-	 * Well, if only it were that simple. Because synchronous direct I/O
-	 * requires extent conversion to occur *before* we return to userspace,
-	 * we have to wait for extent conversion to complete. Look at the
-	 * iocb that has been passed to us to determine if this is AIO or
-	 * not. If it is synchronous, tell xfs_finish_ioend() to kick the
-	 * workqueue and wait for it to complete.
-	 *
-	 * The core direct I/O code might be changed to always call the
-	 * completion handler in the future, in which case all this can
-	 * go away.
+	 * blockdev_direct_IO can return an error even after the I/O
+	 * completion handler was called.  Thus we need to protect
+	 * against double-freeing.
 	 */
+	iocb->private = NULL;
+
 	ioend->io_offset = offset;
 	ioend->io_size = size;
-	if (ioend->io_type == IO_READ) {
-		xfs_finish_ioend(ioend, 0);
-	} else if (private && size > 0) {
-		xfs_finish_ioend(ioend, is_sync_kiocb(iocb));
-	} else {
+	if (private && size > 0)
+		ioend->io_type = IO_UNWRITTEN;
+
+	if (is_async) {
 		/*
-		 * A direct I/O write ioend starts it's life in unwritten
-		 * state in case they map an unwritten extent.  This write
-		 * didn't map an unwritten extent so switch it's completion
-		 * handler.
+		 * If we are converting an unwritten extent we need to delay
+		 * the AIO completion until after the unwrittent extent
+		 * conversion has completed, otherwise do it ASAP.
 		 */
-		ioend->io_type = IO_NEW;
-		xfs_finish_ioend(ioend, 0);
+		if (ioend->io_type == IO_UNWRITTEN) {
+			ioend->io_iocb = iocb;
+			ioend->io_result = ret;
+		} else {
+			aio_complete(iocb, ret, 0);
+		}
+		xfs_finish_ioend(ioend);
+	} else {
+		xfs_finish_ioend_sync(ioend);
 	}
-
-	/*
-	 * blockdev_direct_IO can return an error even after the I/O
-	 * completion handler was called.  Thus we need to protect
-	 * against double-freeing.
-	 */
-	iocb->private = NULL;
 }
 
 STATIC ssize_t
@@ -1655,26 +1473,45 @@ xfs_vm_direct_IO(
 	loff_t			offset,
 	unsigned long		nr_segs)
 {
-	struct file	*file = iocb->ki_filp;
-	struct inode	*inode = file->f_mapping->host;
-	struct block_device *bdev;
-	ssize_t		ret;
-
-	bdev = xfs_find_bdev_for_inode(inode);
+	struct inode		*inode = iocb->ki_filp->f_mapping->host;
+	struct block_device	*bdev = xfs_find_bdev_for_inode(inode);
+	ssize_t			ret;
 
-	iocb->private = xfs_alloc_ioend(inode, rw == WRITE ?
-					IO_UNWRITTEN : IO_READ);
+	if (rw & WRITE) {
+		iocb->private = xfs_alloc_ioend(inode, IO_NEW);
 
-	ret = blockdev_direct_IO_no_locking(rw, iocb, inode, bdev, iov,
+		ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iov,
 					    offset, nr_segs,
 					    xfs_get_blocks_direct,
-					    xfs_end_io_direct);
+					    xfs_end_io_direct_write, NULL, 0);
+		if (ret != -EIOCBQUEUED && iocb->private)
+			xfs_destroy_ioend(iocb->private);
+	} else {
+		ret = __blockdev_direct_IO(rw, iocb, inode, bdev, iov,
+					    offset, nr_segs,
+					    xfs_get_blocks_direct,
+					    NULL, NULL, 0);
+	}
 
-	if (unlikely(ret != -EIOCBQUEUED && iocb->private))
-		xfs_destroy_ioend(iocb->private);
 	return ret;
 }
 
+STATIC void
+xfs_vm_write_failed(
+	struct address_space	*mapping,
+	loff_t			to)
+{
+	struct inode		*inode = mapping->host;
+
+	if (to > inode->i_size) {
+		struct iattr	ia = {
+			.ia_valid	= ATTR_SIZE | ATTR_FORCE,
+			.ia_size	= inode->i_size,
+		};
+		xfs_setattr(XFS_I(inode), &ia, XFS_ATTR_NOLOCK);
+	}
+}
+
 STATIC int
 xfs_vm_write_begin(
 	struct file		*file,
@@ -1685,9 +1522,31 @@ xfs_vm_write_begin(
 	struct page		**pagep,
 	void			**fsdata)
 {
-	*pagep = NULL;
-	return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
-								xfs_get_blocks);
+	int			ret;
+
+	ret = block_write_begin(mapping, pos, len, flags | AOP_FLAG_NOFS,
+				pagep, xfs_get_blocks);
+	if (unlikely(ret))
+		xfs_vm_write_failed(mapping, pos + len);
+	return ret;
+}
+
+STATIC int
+xfs_vm_write_end(
+	struct file		*file,
+	struct address_space	*mapping,
+	loff_t			pos,
+	unsigned		len,
+	unsigned		copied,
+	struct page		*page,
+	void			*fsdata)
+{
+	int			ret;
+
+	ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
+	if (unlikely(ret < len))
+		xfs_vm_write_failed(mapping, pos + len);
+	return ret;
 }
 
 STATIC sector_t
@@ -1698,7 +1557,7 @@ xfs_vm_bmap(
 	struct inode		*inode = (struct inode *)mapping->host;
 	struct xfs_inode	*ip = XFS_I(inode);
 
-	xfs_itrace_entry(XFS_I(inode));
+	trace_xfs_vm_bmap(XFS_I(inode));
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 	xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF);
 	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
@@ -1732,7 +1591,7 @@ const struct address_space_operations xfs_address_space_operations = {
 	.releasepage		= xfs_vm_releasepage,
 	.invalidatepage		= xfs_vm_invalidatepage,
 	.write_begin		= xfs_vm_write_begin,
-	.write_end		= generic_write_end,
+	.write_end		= xfs_vm_write_end,
 	.bmap			= xfs_vm_bmap,
 	.direct_IO		= xfs_vm_direct_IO,
 	.migratepage		= buffer_migrate_page,
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 4cfc6ea87df8..c5057fb6237a 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -37,6 +37,8 @@ typedef struct xfs_ioend {
 	size_t			io_size;	/* size of the extent */
 	xfs_off_t		io_offset;	/* offset in the file */
 	struct work_struct	io_work;	/* xfsdatad work queue */
+	struct kiocb		*io_iocb;
+	int			io_result;
 } xfs_ioend_t;
 
 extern const struct address_space_operations xfs_address_space_operations;
@@ -45,6 +47,6 @@ extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
 extern void xfs_ioend_init(void);
 extern void xfs_ioend_wait(struct xfs_inode *);
 
-extern void xfs_count_page_state(struct page *, int *, int *, int *);
+extern void xfs_count_page_state(struct page *, int *, int *);
 
 #endif /* __XFS_AOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 2ee3f7a60163..63fd2c07cb57 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -39,7 +39,6 @@
 #include "xfs_inum.h"
 #include "xfs_log.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_trace.h"
 
@@ -189,8 +188,8 @@ _xfs_buf_initialize(
 	atomic_set(&bp->b_hold, 1);
 	init_completion(&bp->b_iowait);
 	INIT_LIST_HEAD(&bp->b_list);
-	INIT_LIST_HEAD(&bp->b_hash_list);
-	init_MUTEX_LOCKED(&bp->b_sema); /* held, no waiters */
+	RB_CLEAR_NODE(&bp->b_rbnode);
+	sema_init(&bp->b_sema, 0); /* held, no waiters */
 	XB_SET_OWNER(bp);
 	bp->b_target = target;
 	bp->b_file_offset = range_base;
@@ -263,8 +262,6 @@ xfs_buf_free(
 {
 	trace_xfs_buf_free(bp, _RET_IP_);
 
-	ASSERT(list_empty(&bp->b_hash_list));
-
 	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {
 		uint		i;
 
@@ -423,8 +420,10 @@ _xfs_buf_find(
 {
 	xfs_off_t		range_base;
 	size_t			range_length;
-	xfs_bufhash_t		*hash;
-	xfs_buf_t		*bp, *n;
+	struct xfs_perag	*pag;
+	struct rb_node		**rbp;
+	struct rb_node		*parent;
+	xfs_buf_t		*bp;
 
 	range_base = (ioff << BBSHIFT);
 	range_length = (isize << BBSHIFT);
@@ -433,20 +432,38 @@ _xfs_buf_find(
 	ASSERT(!(range_length < (1 << btp->bt_sshift)));
 	ASSERT(!(range_base & (xfs_off_t)btp->bt_smask));
 
-	hash = &btp->bt_hash[hash_long((unsigned long)ioff, btp->bt_hashshift)];
-
-	spin_lock(&hash->bh_lock);
-
-	list_for_each_entry_safe(bp, n, &hash->bh_list, b_hash_list) {
-		ASSERT(btp == bp->b_target);
-		if (bp->b_file_offset == range_base &&
-		    bp->b_buffer_length == range_length) {
+	/* get tree root */
+	pag = xfs_perag_get(btp->bt_mount,
+				xfs_daddr_to_agno(btp->bt_mount, ioff));
+
+	/* walk tree */
+	spin_lock(&pag->pag_buf_lock);
+	rbp = &pag->pag_buf_tree.rb_node;
+	parent = NULL;
+	bp = NULL;
+	while (*rbp) {
+		parent = *rbp;
+		bp = rb_entry(parent, struct xfs_buf, b_rbnode);
+
+		if (range_base < bp->b_file_offset)
+			rbp = &(*rbp)->rb_left;
+		else if (range_base > bp->b_file_offset)
+			rbp = &(*rbp)->rb_right;
+		else {
 			/*
-			 * If we look at something, bring it to the
-			 * front of the list for next time.
+			 * found a block offset match. If the range doesn't
+			 * match, the only way this is allowed is if the buffer
+			 * in the cache is stale and the transaction that made
+			 * it stale has not yet committed. i.e. we are
+			 * reallocating a busy extent. Skip this buffer and
+			 * continue searching to the right for an exact match.
 			 */
+			if (bp->b_buffer_length != range_length) {
+				ASSERT(bp->b_flags & XBF_STALE);
+				rbp = &(*rbp)->rb_right;
+				continue;
+			}
 			atomic_inc(&bp->b_hold);
-			list_move(&bp->b_hash_list, &hash->bh_list);
 			goto found;
 		}
 	}
@@ -455,17 +472,21 @@ _xfs_buf_find(
 	if (new_bp) {
 		_xfs_buf_initialize(new_bp, btp, range_base,
 				range_length, flags);
-		new_bp->b_hash = hash;
-		list_add(&new_bp->b_hash_list, &hash->bh_list);
+		rb_link_node(&new_bp->b_rbnode, parent, rbp);
+		rb_insert_color(&new_bp->b_rbnode, &pag->pag_buf_tree);
+		/* the buffer keeps the perag reference until it is freed */
+		new_bp->b_pag = pag;
+		spin_unlock(&pag->pag_buf_lock);
 	} else {
 		XFS_STATS_INC(xb_miss_locked);
+		spin_unlock(&pag->pag_buf_lock);
+		xfs_perag_put(pag);
 	}
-
-	spin_unlock(&hash->bh_lock);
 	return new_bp;
 
 found:
-	spin_unlock(&hash->bh_lock);
+	spin_unlock(&pag->pag_buf_lock);
+	xfs_perag_put(pag);
 
 	/* Attempt to get the semaphore without sleeping,
 	 * if this does not work then we need to drop the
@@ -579,9 +600,9 @@ _xfs_buf_read(
 			XBF_READ_AHEAD | _XBF_RUN_QUEUES);
 
 	status = xfs_buf_iorequest(bp);
-	if (!status && !(flags & XBF_ASYNC))
-		status = xfs_buf_iowait(bp);
-	return status;
+	if (status || XFS_BUF_ISERROR(bp) || (flags & XBF_ASYNC))
+		return status;
+	return xfs_buf_iowait(bp);
 }
 
 xfs_buf_t *
@@ -631,8 +652,7 @@ void
 xfs_buf_readahead(
 	xfs_buftarg_t		*target,
 	xfs_off_t		ioff,
-	size_t			isize,
-	xfs_buf_flags_t		flags)
+	size_t			isize)
 {
 	struct backing_dev_info *bdi;
 
@@ -640,8 +660,42 @@ xfs_buf_readahead(
 	if (bdi_read_congested(bdi))
 		return;
 
-	flags |= (XBF_TRYLOCK|XBF_ASYNC|XBF_READ_AHEAD);
-	xfs_buf_read(target, ioff, isize, flags);
+	xfs_buf_read(target, ioff, isize,
+		     XBF_TRYLOCK|XBF_ASYNC|XBF_READ_AHEAD|XBF_DONT_BLOCK);
+}
+
+/*
+ * Read an uncached buffer from disk. Allocates and returns a locked
+ * buffer containing the disk contents or nothing.
+ */
+struct xfs_buf *
+xfs_buf_read_uncached(
+	struct xfs_mount	*mp,
+	struct xfs_buftarg	*target,
+	xfs_daddr_t		daddr,
+	size_t			length,
+	int			flags)
+{
+	xfs_buf_t		*bp;
+	int			error;
+
+	bp = xfs_buf_get_uncached(target, length, flags);
+	if (!bp)
+		return NULL;
+
+	/* set up the buffer for a read IO */
+	xfs_buf_lock(bp);
+	XFS_BUF_SET_ADDR(bp, daddr);
+	XFS_BUF_READ(bp);
+	XFS_BUF_BUSY(bp);
+
+	xfsbdstrat(mp, bp);
+	error = xfs_buf_iowait(bp);
+	if (error || bp->b_error) {
+		xfs_buf_relse(bp);
+		return NULL;
+	}
+	return bp;
 }
 
 xfs_buf_t *
@@ -713,9 +767,10 @@ xfs_buf_associate_memory(
 }
 
 xfs_buf_t *
-xfs_buf_get_noaddr(
+xfs_buf_get_uncached(
+	struct xfs_buftarg	*target,
 	size_t			len,
-	xfs_buftarg_t		*target)
+	int			flags)
 {
 	unsigned long		page_count = PAGE_ALIGN(len) >> PAGE_SHIFT;
 	int			error, i;
@@ -731,7 +786,7 @@ xfs_buf_get_noaddr(
 		goto fail_free_buf;
 
 	for (i = 0; i < page_count; i++) {
-		bp->b_pages[i] = alloc_page(GFP_KERNEL);
+		bp->b_pages[i] = alloc_page(xb_to_gfp(flags));
 		if (!bp->b_pages[i])
 			goto fail_free_mem;
 	}
@@ -746,7 +801,7 @@ xfs_buf_get_noaddr(
 
 	xfs_buf_unlock(bp);
 
-	trace_xfs_buf_get_noaddr(bp, _RET_IP_);
+	trace_xfs_buf_get_uncached(bp, _RET_IP_);
 	return bp;
 
  fail_free_mem:
@@ -780,29 +835,30 @@ void
 xfs_buf_rele(
 	xfs_buf_t		*bp)
 {
-	xfs_bufhash_t		*hash = bp->b_hash;
+	struct xfs_perag	*pag = bp->b_pag;
 
 	trace_xfs_buf_rele(bp, _RET_IP_);
 
-	if (unlikely(!hash)) {
+	if (!pag) {
 		ASSERT(!bp->b_relse);
+		ASSERT(RB_EMPTY_NODE(&bp->b_rbnode));
 		if (atomic_dec_and_test(&bp->b_hold))
 			xfs_buf_free(bp);
 		return;
 	}
 
+	ASSERT(!RB_EMPTY_NODE(&bp->b_rbnode));
 	ASSERT(atomic_read(&bp->b_hold) > 0);
-	if (atomic_dec_and_lock(&bp->b_hold, &hash->bh_lock)) {
+	if (atomic_dec_and_lock(&bp->b_hold, &pag->pag_buf_lock)) {
 		if (bp->b_relse) {
 			atomic_inc(&bp->b_hold);
-			spin_unlock(&hash->bh_lock);
-			(*(bp->b_relse)) (bp);
-		} else if (bp->b_flags & XBF_FS_MANAGED) {
-			spin_unlock(&hash->bh_lock);
+			spin_unlock(&pag->pag_buf_lock);
+			bp->b_relse(bp);
 		} else {
 			ASSERT(!(bp->b_flags & (XBF_DELWRI|_XBF_DELWRI_Q)));
-			list_del_init(&bp->b_hash_list);
-			spin_unlock(&hash->bh_lock);
+			rb_erase(&bp->b_rbnode, &pag->pag_buf_tree);
+			spin_unlock(&pag->pag_buf_lock);
+			xfs_perag_put(pag);
 			xfs_buf_free(bp);
 		}
 	}
@@ -865,7 +921,7 @@ xfs_buf_lock(
 	trace_xfs_buf_lock(bp, _RET_IP_);
 
 	if (atomic_read(&bp->b_pin_count) && (bp->b_flags & XBF_STALE))
-		xfs_log_force(bp->b_mount, 0);
+		xfs_log_force(bp->b_target->bt_mount, 0);
 	if (atomic_read(&bp->b_io_remaining))
 		blk_run_address_space(bp->b_target->bt_mapping);
 	down(&bp->b_sema);
@@ -897,36 +953,6 @@ xfs_buf_unlock(
 	trace_xfs_buf_unlock(bp, _RET_IP_);
 }
 
-
-/*
- *	Pinning Buffer Storage in Memory
- *	Ensure that no attempt to force a buffer to disk will succeed.
- */
-void
-xfs_buf_pin(
-	xfs_buf_t		*bp)
-{
-	trace_xfs_buf_pin(bp, _RET_IP_);
-	atomic_inc(&bp->b_pin_count);
-}
-
-void
-xfs_buf_unpin(
-	xfs_buf_t		*bp)
-{
-	trace_xfs_buf_unpin(bp, _RET_IP_);
-
-	if (atomic_dec_and_test(&bp->b_pin_count))
-		wake_up_all(&bp->b_waiters);
-}
-
-int
-xfs_buf_ispin(
-	xfs_buf_t		*bp)
-{
-	return atomic_read(&bp->b_pin_count);
-}
-
 STATIC void
 xfs_buf_wait_unpin(
 	xfs_buf_t		*bp)
@@ -960,19 +986,7 @@ xfs_buf_iodone_work(
 	xfs_buf_t		*bp =
 		container_of(work, xfs_buf_t, b_iodone_work);
 
-	/*
-	 * We can get an EOPNOTSUPP to ordered writes.  Here we clear the
-	 * ordered flag and reissue them.  Because we can't tell the higher
-	 * layers directly that they should not issue ordered I/O anymore, they
-	 * need to check if the _XFS_BARRIER_FAILED flag was set during I/O completion.
-	 */
-	if ((bp->b_error == EOPNOTSUPP) &&
-	    (bp->b_flags & (XBF_ORDERED|XBF_ASYNC)) == (XBF_ORDERED|XBF_ASYNC)) {
-		trace_xfs_buf_ordered_retry(bp, _RET_IP_);
-		bp->b_flags &= ~XBF_ORDERED;
-		bp->b_flags |= _XFS_BARRIER_FAILED;
-		xfs_buf_iorequest(bp);
-	} else if (bp->b_iodone)
+	if (bp->b_iodone)
 		(*(bp->b_iodone))(bp);
 	else if (bp->b_flags & XBF_ASYNC)
 		xfs_buf_relse(bp);
@@ -1018,13 +1032,11 @@ xfs_bwrite(
 {
 	int			error;
 
-	bp->b_strat = xfs_bdstrat_cb;
-	bp->b_mount = mp;
 	bp->b_flags |= XBF_WRITE;
 	bp->b_flags &= ~(XBF_ASYNC | XBF_READ);
 
 	xfs_buf_delwri_dequeue(bp);
-	xfs_buf_iostrategy(bp);
+	xfs_bdstrat_cb(bp);
 
 	error = xfs_buf_iowait(bp);
 	if (error)
@@ -1040,9 +1052,6 @@ xfs_bdwrite(
 {
 	trace_xfs_buf_bdwrite(bp, _RET_IP_);
 
-	bp->b_strat = xfs_bdstrat_cb;
-	bp->b_mount = mp;
-
 	bp->b_flags &= ~XBF_READ;
 	bp->b_flags |= (XBF_DELWRI | XBF_ASYNC);
 
@@ -1051,7 +1060,7 @@ xfs_bdwrite(
 
 /*
  * Called when we want to stop a buffer from getting written or read.
- * We attach the EIO error, muck with its flags, and call biodone
+ * We attach the EIO error, muck with its flags, and call xfs_buf_ioend
  * so that the proper iodone callbacks get called.
  */
 STATIC int
@@ -1068,22 +1077,21 @@ xfs_bioerror(
 	XFS_BUF_ERROR(bp, EIO);
 
 	/*
-	 * We're calling biodone, so delete XBF_DONE flag.
+	 * We're calling xfs_buf_ioend, so delete XBF_DONE flag.
 	 */
 	XFS_BUF_UNREAD(bp);
 	XFS_BUF_UNDELAYWRITE(bp);
 	XFS_BUF_UNDONE(bp);
 	XFS_BUF_STALE(bp);
 
-	XFS_BUF_CLR_BDSTRAT_FUNC(bp);
-	xfs_biodone(bp);
+	xfs_buf_ioend(bp, 0);
 
 	return EIO;
 }
 
 /*
  * Same as xfs_bioerror, except that we are releasing the buffer
- * here ourselves, and avoiding the biodone call.
+ * here ourselves, and avoiding the xfs_buf_ioend call.
  * This is meant for userdata errors; metadata bufs come with
  * iodone functions attached, so that we can track down errors.
  */
@@ -1105,7 +1113,6 @@ xfs_bioerror_relse(
 	XFS_BUF_DONE(bp);
 	XFS_BUF_STALE(bp);
 	XFS_BUF_CLR_IODONE_FUNC(bp);
-	XFS_BUF_CLR_BDSTRAT_FUNC(bp);
 	if (!(fl & XBF_ASYNC)) {
 		/*
 		 * Mark b_error and B_ERROR _both_.
@@ -1133,7 +1140,7 @@ int
 xfs_bdstrat_cb(
 	struct xfs_buf	*bp)
 {
-	if (XFS_FORCED_SHUTDOWN(bp->b_mount)) {
+	if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) {
 		trace_xfs_bdstrat_shut(bp, _RET_IP_);
 		/*
 		 * Metadata write that didn't get logged but
@@ -1235,7 +1242,7 @@ _xfs_buf_ioapply(
 
 	if (bp->b_flags & XBF_ORDERED) {
 		ASSERT(!(bp->b_flags & XBF_READ));
-		rw = WRITE_BARRIER;
+		rw = WRITE_FLUSH_FUA;
 	} else if (bp->b_flags & XBF_LOG_BUFFER) {
 		ASSERT(!(bp->b_flags & XBF_READ_AHEAD));
 		bp->b_flags &= ~_XBF_RUN_QUEUES;
@@ -1311,8 +1318,19 @@ submit_io:
 		if (size)
 			goto next_chunk;
 	} else {
-		bio_put(bio);
+		/*
+		 * if we get here, no pages were added to the bio. However,
+		 * we can't just error out here - if the pages are locked then
+		 * we have to unlock them otherwise we can hang on a later
+		 * access to the page.
+		 */
 		xfs_buf_ioerror(bp, EIO);
+		if (bp->b_flags & _XBF_PAGE_LOCKED) {
+			int i;
+			for (i = 0; i < bp->b_page_count; i++)
+				unlock_page(bp->b_pages[i]);
+		}
+		bio_put(bio);
 	}
 }
 
@@ -1428,63 +1446,24 @@ xfs_buf_iomove(
  */
 void
 xfs_wait_buftarg(
-	xfs_buftarg_t	*btp)
-{
-	xfs_buf_t	*bp, *n;
-	xfs_bufhash_t	*hash;
-	uint		i;
-
-	for (i = 0; i < (1 << btp->bt_hashshift); i++) {
-		hash = &btp->bt_hash[i];
-again:
-		spin_lock(&hash->bh_lock);
-		list_for_each_entry_safe(bp, n, &hash->bh_list, b_hash_list) {
-			ASSERT(btp == bp->b_target);
-			if (!(bp->b_flags & XBF_FS_MANAGED)) {
-				spin_unlock(&hash->bh_lock);
-				/*
-				 * Catch superblock reference count leaks
-				 * immediately
-				 */
-				BUG_ON(bp->b_bn == 0);
-				delay(100);
-				goto again;
-			}
-		}
-		spin_unlock(&hash->bh_lock);
-	}
-}
-
-/*
- *	Allocate buffer hash table for a given target.
- *	For devices containing metadata (i.e. not the log/realtime devices)
- *	we need to allocate a much larger hash table.
- */
-STATIC void
-xfs_alloc_bufhash(
-	xfs_buftarg_t		*btp,
-	int			external)
+	struct xfs_buftarg	*btp)
 {
-	unsigned int		i;
+	struct xfs_perag	*pag;
+	uint			i;
 
-	btp->bt_hashshift = external ? 3 : 8;	/* 8 or 256 buckets */
-	btp->bt_hashmask = (1 << btp->bt_hashshift) - 1;
-	btp->bt_hash = kmem_zalloc_large((1 << btp->bt_hashshift) *
-					 sizeof(xfs_bufhash_t));
-	for (i = 0; i < (1 << btp->bt_hashshift); i++) {
-		spin_lock_init(&btp->bt_hash[i].bh_lock);
-		INIT_LIST_HEAD(&btp->bt_hash[i].bh_list);
+	for (i = 0; i < btp->bt_mount->m_sb.sb_agcount; i++) {
+		pag = xfs_perag_get(btp->bt_mount, i);
+		spin_lock(&pag->pag_buf_lock);
+		while (rb_first(&pag->pag_buf_tree)) {
+			spin_unlock(&pag->pag_buf_lock);
+			delay(100);
+			spin_lock(&pag->pag_buf_lock);
+		}
+		spin_unlock(&pag->pag_buf_lock);
+		xfs_perag_put(pag);
 	}
 }
 
-STATIC void
-xfs_free_bufhash(
-	xfs_buftarg_t		*btp)
-{
-	kmem_free_large(btp->bt_hash);
-	btp->bt_hash = NULL;
-}
-
 /*
  *	buftarg list for delwrite queue processing
  */
@@ -1517,7 +1496,6 @@ xfs_free_buftarg(
 	xfs_flush_buftarg(btp, 1);
 	if (mp->m_flags & XFS_MOUNT_BARRIER)
 		xfs_blkdev_issue_flush(btp);
-	xfs_free_bufhash(btp);
 	iput(btp->bt_mapping->host);
 
 	/* Unregister the buftarg first so that we don't get a
@@ -1602,6 +1580,7 @@ xfs_mapping_buftarg(
 			XFS_BUFTARG_NAME(btp));
 		return ENOMEM;
 	}
+	inode->i_ino = get_next_ino();
 	inode->i_mode = S_IFBLK;
 	inode->i_bdev = bdev;
 	inode->i_rdev = bdev->bd_dev;
@@ -1639,6 +1618,7 @@ out_error:
 
 xfs_buftarg_t *
 xfs_alloc_buftarg(
+	struct xfs_mount	*mp,
 	struct block_device	*bdev,
 	int			external,
 	const char		*fsname)
@@ -1647,6 +1627,7 @@ xfs_alloc_buftarg(
 
 	btp = kmem_zalloc(sizeof(*btp), KM_SLEEP);
 
+	btp->bt_mount = mp;
 	btp->bt_dev =  bdev->bd_dev;
 	btp->bt_bdev = bdev;
 	if (xfs_setsize_buftarg_early(btp, bdev))
@@ -1655,7 +1636,6 @@ xfs_alloc_buftarg(
 		goto error;
 	if (xfs_alloc_delwrite_queue(btp, fsname))
 		goto error;
-	xfs_alloc_bufhash(btp, external);
 	return btp;
 
 error:
@@ -1804,7 +1784,7 @@ xfs_buf_delwri_split(
 		trace_xfs_buf_delwri_split(bp, _RET_IP_);
 		ASSERT(bp->b_flags & XBF_DELWRI);
 
-		if (!xfs_buf_ispin(bp) && !xfs_buf_cond_lock(bp)) {
+		if (!XFS_BUF_ISPINNED(bp) && !xfs_buf_cond_lock(bp)) {
 			if (!force &&
 			    time_before(jiffies, bp->b_queuetime + age)) {
 				xfs_buf_unlock(bp);
@@ -1889,7 +1869,7 @@ xfsbufd(
 			struct xfs_buf *bp;
 			bp = list_first_entry(&tmp, struct xfs_buf, b_list);
 			list_del_init(&bp->b_list);
-			xfs_buf_iostrategy(bp);
+			xfs_bdstrat_cb(bp);
 			count++;
 		}
 		if (count)
@@ -1936,7 +1916,7 @@ xfs_flush_buftarg(
 			bp->b_flags &= ~XBF_ASYNC;
 			list_add(&bp->b_list, &wait_list);
 		}
-		xfs_buf_iostrategy(bp);
+		xfs_bdstrat_cb(bp);
 	}
 
 	if (wait) {
@@ -1946,7 +1926,7 @@ xfs_flush_buftarg(
 			bp = list_first_entry(&wait_list, struct xfs_buf, b_list);
 
 			list_del_init(&bp->b_list);
-			xfs_iowait(bp);
+			xfs_buf_iowait(bp);
 			xfs_buf_relse(bp);
 		}
 	}
@@ -1962,7 +1942,8 @@ xfs_buf_init(void)
 	if (!xfs_buf_zone)
 		goto out;
 
-	xfslogd_workqueue = create_workqueue("xfslogd");
+	xfslogd_workqueue = alloc_workqueue("xfslogd",
+					WQ_MEM_RECLAIM | WQ_HIGHPRI, 1);
 	if (!xfslogd_workqueue)
 		goto out_free_buf_zone;
 
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 5fbecefa5dfd..383a3f37cf98 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -44,57 +44,48 @@ typedef enum {
 	XBRW_ZERO = 3,			/* Zero target memory */
 } xfs_buf_rw_t;
 
-typedef enum {
-	XBF_READ = (1 << 0),	/* buffer intended for reading from device */
-	XBF_WRITE = (1 << 1),	/* buffer intended for writing to device   */
-	XBF_MAPPED = (1 << 2),  /* buffer mapped (b_addr valid)            */
-	XBF_ASYNC = (1 << 4),   /* initiator will not wait for completion  */
-	XBF_DONE = (1 << 5),    /* all pages in the buffer uptodate	   */
-	XBF_DELWRI = (1 << 6),  /* buffer has dirty pages                  */
-	XBF_STALE = (1 << 7),	/* buffer has been staled, do not find it  */
-	XBF_FS_MANAGED = (1 << 8),  /* filesystem controls freeing memory  */
- 	XBF_ORDERED = (1 << 11),    /* use ordered writes		   */
-	XBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead		   */
-	XBF_LOG_BUFFER = (1 << 13), /* this is a buffer used for the log   */
-
-	/* flags used only as arguments to access routines */
-	XBF_LOCK = (1 << 14),       /* lock requested			   */
-	XBF_TRYLOCK = (1 << 15),    /* lock requested, but do not wait	   */
-	XBF_DONT_BLOCK = (1 << 16), /* do not block in current thread	   */
-
-	/* flags used only internally */
-	_XBF_PAGE_CACHE = (1 << 17),/* backed by pagecache		   */
-	_XBF_PAGES = (1 << 18),	    /* backed by refcounted pages	   */
-	_XBF_RUN_QUEUES = (1 << 19),/* run block device task queue	   */
-	_XBF_DELWRI_Q = (1 << 21),   /* buffer on delwri queue		   */
+#define XBF_READ	(1 << 0) /* buffer intended for reading from device */
+#define XBF_WRITE	(1 << 1) /* buffer intended for writing to device */
+#define XBF_MAPPED	(1 << 2) /* buffer mapped (b_addr valid) */
+#define XBF_ASYNC	(1 << 4) /* initiator will not wait for completion */
+#define XBF_DONE	(1 << 5) /* all pages in the buffer uptodate */
+#define XBF_DELWRI	(1 << 6) /* buffer has dirty pages */
+#define XBF_STALE	(1 << 7) /* buffer has been staled, do not find it */
+#define XBF_ORDERED	(1 << 11)/* use ordered writes */
+#define XBF_READ_AHEAD	(1 << 12)/* asynchronous read-ahead */
+#define XBF_LOG_BUFFER	(1 << 13)/* this is a buffer used for the log */
+
+/* flags used only as arguments to access routines */
+#define XBF_LOCK	(1 << 14)/* lock requested */
+#define XBF_TRYLOCK	(1 << 15)/* lock requested, but do not wait */
+#define XBF_DONT_BLOCK	(1 << 16)/* do not block in current thread */
+
+/* flags used only internally */
+#define _XBF_PAGE_CACHE	(1 << 17)/* backed by pagecache */
+#define _XBF_PAGES	(1 << 18)/* backed by refcounted pages */
+#define	_XBF_RUN_QUEUES	(1 << 19)/* run block device task queue	*/
+#define _XBF_DELWRI_Q	(1 << 21)/* buffer on delwri queue */
 
-	/*
-	 * Special flag for supporting metadata blocks smaller than a FSB.
-	 *
-	 * In this case we can have multiple xfs_buf_t on a single page and
-	 * need to lock out concurrent xfs_buf_t readers as they only
-	 * serialise access to the buffer.
-	 *
-	 * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation
-	 * between reads of the page. Hence we can have one thread read the
-	 * page and modify it, but then race with another thread that thinks
-	 * the page is not up-to-date and hence reads it again.
-	 *
-	 * The result is that the first modifcation to the page is lost.
-	 * This sort of AGF/AGI reading race can happen when unlinking inodes
-	 * that require truncation and results in the AGI unlinked list
-	 * modifications being lost.
-	 */
-	_XBF_PAGE_LOCKED = (1 << 22),
+/*
+ * Special flag for supporting metadata blocks smaller than a FSB.
+ *
+ * In this case we can have multiple xfs_buf_t on a single page and
+ * need to lock out concurrent xfs_buf_t readers as they only
+ * serialise access to the buffer.
+ *
+ * If the FSB size >= PAGE_CACHE_SIZE case, we have no serialisation
+ * between reads of the page. Hence we can have one thread read the
+ * page and modify it, but then race with another thread that thinks
+ * the page is not up-to-date and hence reads it again.
+ *
+ * The result is that the first modifcation to the page is lost.
+ * This sort of AGF/AGI reading race can happen when unlinking inodes
+ * that require truncation and results in the AGI unlinked list
+ * modifications being lost.
+ */
+#define _XBF_PAGE_LOCKED	(1 << 22)
 
-	/*
-	 * If we try a barrier write, but it fails we have to communicate
-	 * this to the upper layers.  Unfortunately b_error gets overwritten
-	 * when the buffer is re-issued so we have to add another flag to
-	 * keep this information.
-	 */
-	_XFS_BARRIER_FAILED = (1 << 23),
-} xfs_buf_flags_t;
+typedef unsigned int xfs_buf_flags_t;
 
 #define XFS_BUF_FLAGS \
 	{ XBF_READ,		"READ" }, \
@@ -104,7 +95,6 @@ typedef enum {
 	{ XBF_DONE,		"DONE" }, \
 	{ XBF_DELWRI,		"DELWRI" }, \
 	{ XBF_STALE,		"STALE" }, \
-	{ XBF_FS_MANAGED,	"FS_MANAGED" }, \
 	{ XBF_ORDERED,		"ORDERED" }, \
 	{ XBF_READ_AHEAD,	"READ_AHEAD" }, \
 	{ XBF_LOCK,		"LOCK" },  	/* should never be set */\
@@ -114,8 +104,7 @@ typedef enum {
 	{ _XBF_PAGES,		"PAGES" }, \
 	{ _XBF_RUN_QUEUES,	"RUN_QUEUES" }, \
 	{ _XBF_DELWRI_Q,	"DELWRI_Q" }, \
-	{ _XBF_PAGE_LOCKED,	"PAGE_LOCKED" }, \
-	{ _XFS_BARRIER_FAILED,	"BARRIER_FAILED" }
+	{ _XBF_PAGE_LOCKED,	"PAGE_LOCKED" }
 
 
 typedef enum {
@@ -132,15 +121,11 @@ typedef struct xfs_buftarg {
 	dev_t			bt_dev;
 	struct block_device	*bt_bdev;
 	struct address_space	*bt_mapping;
+	struct xfs_mount	*bt_mount;
 	unsigned int		bt_bsize;
 	unsigned int		bt_sshift;
 	size_t			bt_smask;
 
-	/* per device buffer hash table */
-	uint			bt_hashmask;
-	uint			bt_hashshift;
-	xfs_bufhash_t		*bt_hash;
-
 	/* per device delwri queue */
 	struct task_struct	*bt_task;
 	struct list_head	bt_list;
@@ -168,35 +153,41 @@ typedef int (*xfs_buf_bdstrat_t)(struct xfs_buf *);
 #define XB_PAGES	2
 
 typedef struct xfs_buf {
+	/*
+	 * first cacheline holds all the fields needed for an uncontended cache
+	 * hit to be fully processed. The semaphore straddles the cacheline
+	 * boundary, but the counter and lock sits on the first cacheline,
+	 * which is the only bit that is touched if we hit the semaphore
+	 * fast-path on locking.
+	 */
+	struct rb_node		b_rbnode;	/* rbtree node */
+	xfs_off_t		b_file_offset;	/* offset in file */
+	size_t			b_buffer_length;/* size of buffer in bytes */
+	atomic_t		b_hold;		/* reference count */
+	xfs_buf_flags_t		b_flags;	/* status flags */
 	struct semaphore	b_sema;		/* semaphore for lockables */
-	unsigned long		b_queuetime;	/* time buffer was queued */
-	atomic_t		b_pin_count;	/* pin count */
+
 	wait_queue_head_t	b_waiters;	/* unpin waiters */
 	struct list_head	b_list;
-	xfs_buf_flags_t		b_flags;	/* status flags */
-	struct list_head	b_hash_list;	/* hash table list */
-	xfs_bufhash_t		*b_hash;	/* hash table list start */
+	struct xfs_perag	*b_pag;		/* contains rbtree root */
 	xfs_buftarg_t		*b_target;	/* buffer target (device) */
-	atomic_t		b_hold;		/* reference count */
 	xfs_daddr_t		b_bn;		/* block number for I/O */
-	xfs_off_t		b_file_offset;	/* offset in file */
-	size_t			b_buffer_length;/* size of buffer in bytes */
 	size_t			b_count_desired;/* desired transfer size */
 	void			*b_addr;	/* virtual address of buffer */
 	struct work_struct	b_iodone_work;
-	atomic_t		b_io_remaining;	/* #outstanding I/O requests */
 	xfs_buf_iodone_t	b_iodone;	/* I/O completion function */
 	xfs_buf_relse_t		b_relse;	/* releasing function */
-	xfs_buf_bdstrat_t	b_strat;	/* pre-write function */
 	struct completion	b_iowait;	/* queue for I/O waiters */
 	void			*b_fspriv;
 	void			*b_fspriv2;
-	struct xfs_mount	*b_mount;
-	unsigned short		b_error;	/* error code on I/O */
-	unsigned int		b_page_count;	/* size of page array */
-	unsigned int		b_offset;	/* page offset in first page */
 	struct page		**b_pages;	/* array of page pointers */
 	struct page		*b_page_array[XB_PAGES]; /* inline pages */
+	unsigned long		b_queuetime;	/* time buffer was queued */
+	atomic_t		b_pin_count;	/* pin count */
+	atomic_t		b_io_remaining;	/* #outstanding I/O requests */
+	unsigned int		b_page_count;	/* size of page array */
+	unsigned int		b_offset;	/* page offset in first page */
+	unsigned short		b_error;	/* error code on I/O */
 #ifdef XFS_BUF_LOCK_TRACKING
 	int			b_last_holder;
 #endif
@@ -215,11 +206,13 @@ extern xfs_buf_t *xfs_buf_read(xfs_buftarg_t *, xfs_off_t, size_t,
 				xfs_buf_flags_t);
 
 extern xfs_buf_t *xfs_buf_get_empty(size_t, xfs_buftarg_t *);
-extern xfs_buf_t *xfs_buf_get_noaddr(size_t, xfs_buftarg_t *);
+extern xfs_buf_t *xfs_buf_get_uncached(struct xfs_buftarg *, size_t, int);
 extern int xfs_buf_associate_memory(xfs_buf_t *, void *, size_t);
 extern void xfs_buf_hold(xfs_buf_t *);
-extern void xfs_buf_readahead(xfs_buftarg_t *, xfs_off_t, size_t,
-				xfs_buf_flags_t);
+extern void xfs_buf_readahead(xfs_buftarg_t *, xfs_off_t, size_t);
+struct xfs_buf *xfs_buf_read_uncached(struct xfs_mount *mp,
+				struct xfs_buftarg *target,
+				xfs_daddr_t daddr, size_t length, int flags);
 
 /* Releasing Buffers */
 extern void xfs_buf_free(xfs_buf_t *);
@@ -244,11 +237,8 @@ extern int xfs_buf_iorequest(xfs_buf_t *);
 extern int xfs_buf_iowait(xfs_buf_t *);
 extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *,
 				xfs_buf_rw_t);
-
-static inline int xfs_buf_iostrategy(xfs_buf_t *bp)
-{
-	return bp->b_strat ? bp->b_strat(bp) : xfs_buf_iorequest(bp);
-}
+#define xfs_buf_zero(bp, off, len) \
+	    xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)
 
 static inline int xfs_buf_geterror(xfs_buf_t *bp)
 {
@@ -258,11 +248,6 @@ static inline int xfs_buf_geterror(xfs_buf_t *bp)
 /* Buffer Utility Routines */
 extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t);
 
-/* Pinning Buffer Storage in Memory */
-extern void xfs_buf_pin(xfs_buf_t *);
-extern void xfs_buf_unpin(xfs_buf_t *);
-extern int xfs_buf_ispin(xfs_buf_t *);
-
 /* Delayed Write Buffer Routines */
 extern void xfs_buf_delwri_dequeue(xfs_buf_t *);
 extern void xfs_buf_delwri_promote(xfs_buf_t *);
@@ -288,8 +273,6 @@ extern void xfs_buf_terminate(void);
 					XFS_BUF_DONE(bp);	\
 				} while (0)
 
-#define XFS_BUF_UNMANAGE(bp)	((bp)->b_flags &= ~XBF_FS_MANAGED)
-
 #define XFS_BUF_DELAYWRITE(bp)		((bp)->b_flags |= XBF_DELWRI)
 #define XFS_BUF_UNDELAYWRITE(bp)	xfs_buf_delwri_dequeue(bp)
 #define XFS_BUF_ISDELAYWRITE(bp)	((bp)->b_flags & XBF_DELWRI)
@@ -326,8 +309,6 @@ extern void xfs_buf_terminate(void);
 #define XFS_BUF_IODONE_FUNC(bp)			((bp)->b_iodone)
 #define XFS_BUF_SET_IODONE_FUNC(bp, func)	((bp)->b_iodone = (func))
 #define XFS_BUF_CLR_IODONE_FUNC(bp)		((bp)->b_iodone = NULL)
-#define XFS_BUF_SET_BDSTRAT_FUNC(bp, func)	((bp)->b_strat = (func))
-#define XFS_BUF_CLR_BDSTRAT_FUNC(bp)		((bp)->b_strat = NULL)
 
 #define XFS_BUF_FSPRIVATE(bp, type)		((type)(bp)->b_fspriv)
 #define XFS_BUF_SET_FSPRIVATE(bp, val)		((bp)->b_fspriv = (void*)(val))
@@ -351,7 +332,7 @@ extern void xfs_buf_terminate(void);
 #define XFS_BUF_SET_VTYPE(bp, type)		do { } while (0)
 #define XFS_BUF_SET_REF(bp, ref)		do { } while (0)
 
-#define XFS_BUF_ISPINNED(bp)	xfs_buf_ispin(bp)
+#define XFS_BUF_ISPINNED(bp)	atomic_read(&((bp)->b_pin_count))
 
 #define XFS_BUF_VALUSEMA(bp)	xfs_buf_lock_value(bp)
 #define XFS_BUF_CPSEMA(bp)	(xfs_buf_cond_lock(bp) == 0)
@@ -370,27 +351,11 @@ static inline void xfs_buf_relse(xfs_buf_t *bp)
 	xfs_buf_rele(bp);
 }
 
-#define xfs_bpin(bp)		xfs_buf_pin(bp)
-#define xfs_bunpin(bp)		xfs_buf_unpin(bp)
-#define xfs_biodone(bp)		xfs_buf_ioend(bp, 0)
-
-#define xfs_biomove(bp, off, len, data, rw) \
-	    xfs_buf_iomove((bp), (off), (len), (data), \
-		((rw) == XBF_WRITE) ? XBRW_WRITE : XBRW_READ)
-
-#define xfs_biozero(bp, off, len) \
-	    xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)
-
-#define xfs_iowait(bp)	xfs_buf_iowait(bp)
-
-#define xfs_baread(target, rablkno, ralen)  \
-	xfs_buf_readahead((target), (rablkno), (ralen), XBF_DONT_BLOCK)
-
-
 /*
  *	Handling of buftargs.
  */
-extern xfs_buftarg_t *xfs_alloc_buftarg(struct block_device *, int, const char *);
+extern xfs_buftarg_t *xfs_alloc_buftarg(struct xfs_mount *,
+			struct block_device *, int, const char *);
 extern void xfs_free_buftarg(struct xfs_mount *, struct xfs_buftarg *);
 extern void xfs_wait_buftarg(xfs_buftarg_t *);
 extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
diff --git a/fs/xfs/linux-2.6/xfs_cred.h b/fs/xfs/linux-2.6/xfs_cred.h
deleted file mode 100644
index 55bddf3b6091..000000000000
--- a/fs/xfs/linux-2.6/xfs_cred.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_CRED_H__
-#define __XFS_CRED_H__
-
-#include <linux/capability.h>
-
-/*
- * Credentials
- */
-typedef const struct cred cred_t;
-
-#endif  /* __XFS_CRED_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_dmapi_priv.h b/fs/xfs/linux-2.6/xfs_dmapi_priv.h
deleted file mode 100644
index a8b0b1685eed..000000000000
--- a/fs/xfs/linux-2.6/xfs_dmapi_priv.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2000-2006 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_DMAPI_PRIV_H__
-#define __XFS_DMAPI_PRIV_H__
-
-/*
- *	Based on IO_ISDIRECT, decide which i_ flag is set.
- */
-#define DM_SEM_FLAG_RD(ioflags) (((ioflags) & IO_ISDIRECT) ? \
-			      DM_FLAGS_IMUX : 0)
-#define DM_SEM_FLAG_WR	(DM_FLAGS_IALLOCSEM_WR | DM_FLAGS_IMUX)
-
-#endif /*__XFS_DMAPI_PRIV_H__*/
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index e7839ee49e43..3764d74790ec 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -23,13 +23,13 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_export.h"
 #include "xfs_vnodeops.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
+#include "xfs_trace.h"
 
 /*
  * Note that we only accept fileids which are long enough rather than allow
@@ -132,8 +132,7 @@ xfs_nfs_get_inode(
 	 * fine and not an indication of a corrupted filesystem as clients can
 	 * send invalid file handles and we have to handle it gracefully..
 	 */
-	error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED,
-			 XFS_ILOCK_SHARED, &ip);
+	error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, 0, &ip);
 	if (error) {
 		/*
 		 * EINVAL means the inode cluster doesn't exist anymore.
@@ -148,11 +147,10 @@ xfs_nfs_get_inode(
 	}
 
 	if (ip->i_d.di_gen != generation) {
-		xfs_iput_new(ip, XFS_ILOCK_SHARED);
+		IRELE(ip);
 		return ERR_PTR(-ENOENT);
 	}
 
-	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 	return VFS_I(ip);
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 257a56b127cf..ba8ad422a165 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -22,23 +22,15 @@
 #include "xfs_inum.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_trans.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
 #include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_vnodeops.h"
 #include "xfs_da_btree.h"
 #include "xfs_ioctl.h"
@@ -108,7 +100,7 @@ xfs_file_fsync(
 	int			error = 0;
 	int			log_flushed = 0;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_file_fsync(ip);
 
 	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
 		return -XFS_ERROR(EIO);
@@ -166,8 +158,7 @@ xfs_file_fsync(
 		 * transaction.	 So we play it safe and fire off the
 		 * transaction anyway.
 		 */
-		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 		xfs_trans_set_sync(tp);
 		error = _xfs_trans_commit(tp, 0, &log_flushed);
@@ -275,20 +266,6 @@ xfs_file_aio_read(
 		mutex_lock(&inode->i_mutex);
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
-	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
-		int iolock = XFS_IOLOCK_SHARED;
-
-		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, iocb->ki_pos, size,
-					dmflags, &iolock);
-		if (ret) {
-			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-			if (unlikely(ioflags & IO_ISDIRECT))
-				mutex_unlock(&inode->i_mutex);
-			return ret;
-		}
-	}
-
 	if (unlikely(ioflags & IO_ISDIRECT)) {
 		if (inode->i_mapping->nrpages) {
 			ret = -xfs_flushinval_pages(ip,
@@ -321,7 +298,6 @@ xfs_file_splice_read(
 	unsigned int		flags)
 {
 	struct xfs_inode	*ip = XFS_I(infilp->f_mapping->host);
-	struct xfs_mount	*mp = ip->i_mount;
 	int			ioflags = 0;
 	ssize_t			ret;
 
@@ -335,18 +311,6 @@ xfs_file_splice_read(
 
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
-	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		int iolock = XFS_IOLOCK_SHARED;
-		int error;
-
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
-					FILP_DELAY_FLAG(infilp), &iolock);
-		if (error) {
-			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-			return -error;
-		}
-	}
-
 	trace_xfs_file_splice_read(ip, count, *ppos, ioflags);
 
 	ret = generic_file_splice_read(infilp, ppos, pipe, count, flags);
@@ -367,7 +331,6 @@ xfs_file_splice_write(
 {
 	struct inode		*inode = outfilp->f_mapping->host;
 	struct xfs_inode	*ip = XFS_I(inode);
-	struct xfs_mount	*mp = ip->i_mount;
 	xfs_fsize_t		isize, new_size;
 	int			ioflags = 0;
 	ssize_t			ret;
@@ -382,18 +345,6 @@ xfs_file_splice_write(
 
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
 
-	if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
-		int iolock = XFS_IOLOCK_EXCL;
-		int error;
-
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
-					FILP_DELAY_FLAG(outfilp), &iolock);
-		if (error) {
-			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-			return -error;
-		}
-	}
-
 	new_size = *ppos + count;
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
@@ -463,7 +414,7 @@ xfs_zero_last_block(
 	last_fsb = XFS_B_TO_FSBT(mp, isize);
 	nimaps = 1;
 	error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap,
-			  &nimaps, NULL, NULL);
+			  &nimaps, NULL);
 	if (error) {
 		return error;
 	}
@@ -558,7 +509,7 @@ xfs_zero_eof(
 		nimaps = 1;
 		zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
 		error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
-				  0, NULL, 0, &imap, &nimaps, NULL, NULL);
+				  0, NULL, 0, &imap, &nimaps, NULL);
 		if (error) {
 			ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
 			return error;
@@ -627,7 +578,6 @@ xfs_file_aio_write(
 	int			ioflags = 0;
 	xfs_fsize_t		isize, new_size;
 	int			iolock;
-	int			eventsent = 0;
 	size_t			ocount = 0, count;
 	int			need_i_mutex;
 
@@ -673,33 +623,6 @@ start:
 		goto out_unlock_mutex;
 	}
 
-	if ((DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) &&
-	    !(ioflags & IO_INVIS) && !eventsent)) {
-		int		dmflags = FILP_DELAY_FLAG(file);
-
-		if (need_i_mutex)
-			dmflags |= DM_FLAGS_IMUX;
-
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-		error = XFS_SEND_DATA(ip->i_mount, DM_EVENT_WRITE, ip,
-				      pos, count, dmflags, &iolock);
-		if (error) {
-			goto out_unlock_internal;
-		}
-		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		eventsent = 1;
-
-		/*
-		 * The iolock was dropped and reacquired in XFS_SEND_DATA
-		 * so we have to recheck the size when appending.
-		 * We will only "goto start;" once, since having sent the
-		 * event prevents another call to XFS_SEND_DATA, which is
-		 * what allows the size to change in the first place.
-		 */
-		if ((file->f_flags & O_APPEND) && pos != ip->i_size)
-			goto start;
-	}
-
 	if (ioflags & IO_ISDIRECT) {
 		xfs_buftarg_t	*target =
 			XFS_IS_REALTIME_INODE(ip) ?
@@ -830,22 +753,6 @@ write_retry:
 		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	}
 
-	if (ret == -ENOSPC &&
-	    DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
-		xfs_iunlock(ip, iolock);
-		if (need_i_mutex)
-			mutex_unlock(&inode->i_mutex);
-		error = XFS_SEND_NAMESP(ip->i_mount, DM_EVENT_NOSPACE, ip,
-				DM_RIGHT_NULL, ip, DM_RIGHT_NULL, NULL, NULL,
-				0, 0, 0); /* Delay flag intentionally  unused */
-		if (need_i_mutex)
-			mutex_lock(&inode->i_mutex);
-		xfs_ilock(ip, iolock);
-		if (error)
-			goto out_unlock_internal;
-		goto start;
-	}
-
 	error = -ret;
 	if (ret <= 0)
 		goto out_unlock_internal;
@@ -1014,9 +921,6 @@ const struct file_operations xfs_file_operations = {
 	.open		= xfs_file_open,
 	.release	= xfs_file_release,
 	.fsync		= xfs_file_fsync,
-#ifdef HAVE_FOP_OPEN_EXEC
-	.open_exec	= xfs_file_open_exec,
-#endif
 };
 
 const struct file_operations xfs_dir_file_operations = {
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index b6918d76bc7b..ed88ed16811c 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -21,10 +21,6 @@
 #include "xfs_inode.h"
 #include "xfs_trace.h"
 
-int  fs_noerr(void) { return 0; }
-int  fs_nosys(void) { return ENOSYS; }
-void fs_noval(void) { return; }
-
 /*
  * note: all filemap functions return negative error codes. These
  * need to be inverted before returning to the xfs core functions.
@@ -36,10 +32,9 @@ xfs_tosspages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	struct address_space *mapping = VFS_I(ip)->i_mapping;
-
-	if (mapping->nrpages)
-		truncate_inode_pages(mapping, first);
+	/* can't toss partial tail pages, so mask them out */
+	last &= ~(PAGE_SIZE - 1);
+	truncate_inode_pages_range(VFS_I(ip)->i_mapping, first, last - 1);
 }
 
 int
@@ -54,12 +49,11 @@ xfs_flushinval_pages(
 
 	trace_xfs_pagecache_inval(ip, first, last);
 
-	if (mapping->nrpages) {
-		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = filemap_write_and_wait(mapping);
-		if (!ret)
-			truncate_inode_pages(mapping, first);
-	}
+	xfs_iflags_clear(ip, XFS_ITRUNCATED);
+	ret = filemap_write_and_wait_range(mapping, first,
+				last == -1 ? LLONG_MAX : last);
+	if (!ret)
+		truncate_inode_pages_range(mapping, first, last);
 	return -ret;
 }
 
@@ -75,10 +69,9 @@ xfs_flush_pages(
 	int		ret = 0;
 	int		ret2;
 
-	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
-		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = -filemap_fdatawrite(mapping);
-	}
+	xfs_iflags_clear(ip, XFS_ITRUNCATED);
+	ret = -filemap_fdatawrite_range(mapping, first,
+				last == -1 ? LLONG_MAX : last);
 	if (flags & XBF_ASYNC)
 		return ret;
 	ret2 = xfs_wait_on_pages(ip, first, last);
@@ -95,7 +88,9 @@ xfs_wait_on_pages(
 {
 	struct address_space *mapping = VFS_I(ip)->i_mapping;
 
-	if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK))
-		return -filemap_fdatawait(mapping);
+	if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK)) {
+		return -filemap_fdatawait_range(mapping, first,
+					last == -1 ? ip->i_size - 1 : last);
+	}
 	return 0;
 }
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.h b/fs/xfs/linux-2.6/xfs_fs_subr.h
deleted file mode 100644
index 82bb19b2599e..000000000000
--- a/fs/xfs/linux-2.6/xfs_fs_subr.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef	__XFS_FS_SUBR_H__
-#define __XFS_FS_SUBR_H__
-
-extern int  fs_noerr(void);
-extern int  fs_nosys(void);
-extern void fs_noval(void);
-
-#endif	/* __XFS_FS_SUBR_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_globals.c b/fs/xfs/linux-2.6/xfs_globals.c
index 2ae8b1ccb02e..76e81cff70b9 100644
--- a/fs/xfs/linux-2.6/xfs_globals.c
+++ b/fs/xfs/linux-2.6/xfs_globals.c
@@ -16,7 +16,6 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_cred.h"
 #include "xfs_sysctl.h"
 
 /*
diff --git a/fs/xfs/linux-2.6/xfs_globals.h b/fs/xfs/linux-2.6/xfs_globals.h
deleted file mode 100644
index 69f71caf061c..000000000000
--- a/fs/xfs/linux-2.6/xfs_globals.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_GLOBALS_H__
-#define __XFS_GLOBALS_H__
-
-extern uint64_t	xfs_panic_mask;		/* set to cause more panics */
-
-#endif	/* __XFS_GLOBALS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index e59a81062830..2ea238f6d38e 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -23,24 +23,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ioctl.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_bmap.h"
 #include "xfs_buf_item.h"
@@ -794,10 +785,12 @@ xfs_ioc_fsgetxattr(
 {
 	struct fsxattr		fa;
 
+	memset(&fa, 0, sizeof(struct fsxattr));
+
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 	fa.fsx_xflags = xfs_ip2xflags(ip);
 	fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog;
-	fa.fsx_projid = ip->i_d.di_projid;
+	fa.fsx_projid = xfs_get_projid(ip);
 
 	if (attr) {
 		if (ip->i_afp) {
@@ -908,7 +901,7 @@ xfs_ioctl_setattr(
 	struct xfs_dquot	*olddquot = NULL;
 	int			code;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_ioctl_setattr(ip);
 
 	if (mp->m_flags & XFS_MOUNT_RDONLY)
 		return XFS_ERROR(EROFS);
@@ -916,6 +909,13 @@ xfs_ioctl_setattr(
 		return XFS_ERROR(EIO);
 
 	/*
+	 * Disallow 32bit project ids when projid32bit feature is not enabled.
+	 */
+	if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1) &&
+			!xfs_sb_version_hasprojid32bit(&ip->i_mount->m_sb))
+		return XFS_ERROR(EINVAL);
+
+	/*
 	 * If disk quotas is on, we make sure that the dquots do exist on disk,
 	 * before we start any other transactions. Trying to do this later
 	 * is messy. We don't care to take a readlock to look at the ids
@@ -961,7 +961,7 @@ xfs_ioctl_setattr(
 	if (mask & FSX_PROJID) {
 		if (XFS_IS_QUOTA_RUNNING(mp) &&
 		    XFS_IS_PQUOTA_ON(mp) &&
-		    ip->i_d.di_projid != fa->fsx_projid) {
+		    xfs_get_projid(ip) != fa->fsx_projid) {
 			ASSERT(tp);
 			code = xfs_qm_vop_chown_reserve(tp, ip, udqp, gdqp,
 						capable(CAP_FOWNER) ?
@@ -1043,8 +1043,7 @@ xfs_ioctl_setattr(
 		}
 	}
 
-	xfs_trans_ijoin(tp, ip, lock_flags);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 
 	/*
 	 * Change file ownership.  Must be the owner or privileged.
@@ -1064,12 +1063,12 @@ xfs_ioctl_setattr(
 		 * Change the ownerships and register quota modifications
 		 * in the transaction.
 		 */
-		if (ip->i_d.di_projid != fa->fsx_projid) {
+		if (xfs_get_projid(ip) != fa->fsx_projid) {
 			if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp)) {
 				olddquot = xfs_qm_vop_chown(tp, ip,
 							&ip->i_gdquot, gdqp);
 			}
-			ip->i_d.di_projid = fa->fsx_projid;
+			xfs_set_projid(ip, fa->fsx_projid);
 
 			/*
 			 * We may have to rev the inode as well as
@@ -1089,8 +1088,8 @@ xfs_ioctl_setattr(
 		xfs_diflags_to_linux(ip);
 	}
 
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
 
 	XFS_STATS_INC(xs_ig_attrchg);
 
@@ -1116,16 +1115,7 @@ xfs_ioctl_setattr(
 	xfs_qm_dqrele(udqp);
 	xfs_qm_dqrele(gdqp);
 
-	if (code)
-		return code;
-
-	if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE)) {
-		XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
-				NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0,
-				(mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0);
-	}
-
-	return 0;
+	return code;
 
  error_return:
 	xfs_qm_dqrele(udqp);
@@ -1301,7 +1291,7 @@ xfs_file_ioctl(
 	if (filp->f_mode & FMODE_NOCMTIME)
 		ioflags |= IO_INVIS;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_file_ioctl(ip);
 
 	switch (cmd) {
 	case XFS_IOC_ALLOCSP:
@@ -1311,7 +1301,8 @@ xfs_file_ioctl(
 	case XFS_IOC_ALLOCSP64:
 	case XFS_IOC_FREESP64:
 	case XFS_IOC_RESVSP64:
-	case XFS_IOC_UNRESVSP64: {
+	case XFS_IOC_UNRESVSP64:
+	case XFS_IOC_ZERO_RANGE: {
 		xfs_flock64_t		bf;
 
 		if (copy_from_user(&bf, arg, sizeof(bf)))
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 52ed49e6465c..b3486dfa5520 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -28,12 +28,8 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_vnode.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
@@ -168,7 +164,8 @@ xfs_ioctl32_bstat_copyin(
 	    get_user(bstat->bs_extsize,	&bstat32->bs_extsize)	||
 	    get_user(bstat->bs_extents,	&bstat32->bs_extents)	||
 	    get_user(bstat->bs_gen,	&bstat32->bs_gen)	||
-	    get_user(bstat->bs_projid,	&bstat32->bs_projid)	||
+	    get_user(bstat->bs_projid_lo, &bstat32->bs_projid_lo) ||
+	    get_user(bstat->bs_projid_hi, &bstat32->bs_projid_hi) ||
 	    get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask)	||
 	    get_user(bstat->bs_dmstate,	&bstat32->bs_dmstate)	||
 	    get_user(bstat->bs_aextents, &bstat32->bs_aextents))
@@ -222,6 +219,7 @@ xfs_bulkstat_one_fmt_compat(
 	    put_user(buffer->bs_extents,  &p32->bs_extents)	||
 	    put_user(buffer->bs_gen,	  &p32->bs_gen)		||
 	    put_user(buffer->bs_projid,	  &p32->bs_projid)	||
+	    put_user(buffer->bs_projid_hi,	&p32->bs_projid_hi)	||
 	    put_user(buffer->bs_dmevmask, &p32->bs_dmevmask)	||
 	    put_user(buffer->bs_dmstate,  &p32->bs_dmstate)	||
 	    put_user(buffer->bs_aextents, &p32->bs_aextents))
@@ -544,7 +542,7 @@ xfs_file_compat_ioctl(
 	if (filp->f_mode & FMODE_NOCMTIME)
 		ioflags |= IO_INVIS;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_file_compat_ioctl(ip);
 
 	switch (cmd) {
 	/* No size or alignment issues on any arch */
@@ -578,6 +576,7 @@ xfs_file_compat_ioctl(
 	case XFS_IOC_FSGEOMETRY_V1:
 	case XFS_IOC_FSGROWFSDATA:
 	case XFS_IOC_FSGROWFSRT:
+	case XFS_IOC_ZERO_RANGE:
 		return xfs_file_ioctl(filp, cmd, p);
 #else
 	case XFS_IOC_ALLOCSP_32:
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h
index 1024c4f8ba0d..08b605792a99 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.h
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.h
@@ -65,8 +65,10 @@ typedef struct compat_xfs_bstat {
 	__s32		bs_extsize;	/* extent size			*/
 	__s32		bs_extents;	/* number of extents		*/
 	__u32		bs_gen;		/* generation count		*/
-	__u16		bs_projid;	/* project id			*/
-	unsigned char	bs_pad[14];	/* pad space, unused		*/
+	__u16		bs_projid_lo;	/* lower part of project id	*/
+#define	bs_projid	bs_projid_lo	/* (previously just bs_projid)	*/
+	__u16		bs_projid_hi;	/* high part of project id	*/
+	unsigned char	bs_pad[12];	/* pad space, unused		*/
 	__u32		bs_dmevmask;	/* DMIG event mask		*/
 	__u16		bs_dmstate;	/* DMIG state info		*/
 	__u16		bs_aextents;	/* attribute number of extents	*/
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 44f0b2de153e..96107efc0c61 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -24,21 +24,13 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
@@ -88,7 +80,7 @@ xfs_mark_inode_dirty_sync(
 {
 	struct inode	*inode = VFS_I(ip);
 
-	if (!(inode->i_state & (I_WILL_FREE|I_FREEING|I_CLEAR)))
+	if (!(inode->i_state & (I_WILL_FREE|I_FREEING)))
 		mark_inode_dirty_sync(inode);
 }
 
@@ -98,46 +90,11 @@ xfs_mark_inode_dirty(
 {
 	struct inode	*inode = VFS_I(ip);
 
-	if (!(inode->i_state & (I_WILL_FREE|I_FREEING|I_CLEAR)))
+	if (!(inode->i_state & (I_WILL_FREE|I_FREEING)))
 		mark_inode_dirty(inode);
 }
 
 /*
- * Change the requested timestamp in the given inode.
- * We don't lock across timestamp updates, and we don't log them but
- * we do record the fact that there is dirty information in core.
- */
-void
-xfs_ichgtime(
-	xfs_inode_t	*ip,
-	int		flags)
-{
-	struct inode	*inode = VFS_I(ip);
-	timespec_t	tv;
-	int		sync_it = 0;
-
-	tv = current_fs_time(inode->i_sb);
-
-	if ((flags & XFS_ICHGTIME_MOD) &&
-	    !timespec_equal(&inode->i_mtime, &tv)) {
-		inode->i_mtime = tv;
-		sync_it = 1;
-	}
-	if ((flags & XFS_ICHGTIME_CHG) &&
-	    !timespec_equal(&inode->i_ctime, &tv)) {
-		inode->i_ctime = tv;
-		sync_it = 1;
-	}
-
-	/*
-	 * Update complete - now make sure everyone knows that the inode
-	 * is dirty.
-	 */
-	if (sync_it)
-		xfs_mark_inode_dirty_sync(ip);
-}
-
-/*
  * Hook in SELinux.  This is not quite correct yet, what we really need
  * here (as we do for default ACLs) is a mechanism by which creation of
  * these attrs can be journalled at inode creation time (along with the
@@ -232,7 +189,7 @@ xfs_vn_mknod(
 	}
 
 	xfs_dentry_to_name(&name, dentry);
-	error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip, NULL);
+	error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
 	if (unlikely(error))
 		goto out_free_acl;
 
@@ -360,7 +317,7 @@ xfs_vn_link(
 	if (unlikely(error))
 		return -error;
 
-	atomic_inc(&inode->i_count);
+	ihold(inode);
 	d_instantiate(dentry, inode);
 	return 0;
 }
@@ -405,7 +362,7 @@ xfs_vn_symlink(
 		(irix_symlink_mode ? 0777 & ~current_umask() : S_IRWXUGO);
 	xfs_dentry_to_name(&name, dentry);
 
-	error = xfs_symlink(XFS_I(dir), &name, symname, mode, &cip, NULL);
+	error = xfs_symlink(XFS_I(dir), &name, symname, mode, &cip);
 	if (unlikely(error))
 		goto out;
 
@@ -496,7 +453,7 @@ xfs_vn_getattr(
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_getattr(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
@@ -548,21 +505,6 @@ xfs_vn_setattr(
 	return -xfs_setattr(XFS_I(dentry->d_inode), iattr, 0);
 }
 
-/*
- * block_truncate_page can return an error, but we can't propagate it
- * at all here. Leave a complaint + stack trace in the syslog because
- * this could be bad. If it is bad, we need to propagate the error further.
- */
-STATIC void
-xfs_vn_truncate(
-	struct inode	*inode)
-{
-	int	error;
-	error = block_truncate_page(inode->i_mapping, inode->i_size,
-							xfs_get_blocks);
-	WARN_ON(error);
-}
-
 STATIC long
 xfs_vn_fallocate(
 	struct inode	*inode,
@@ -687,7 +629,7 @@ xfs_vn_fiemap(
 					fieinfo->fi_extents_max + 1;
 	bm.bmv_count = min_t(__s32, bm.bmv_count,
 			     (PAGE_SIZE * 16 / sizeof(struct getbmapx)));
-	bm.bmv_iflags = BMV_IF_PREALLOC;
+	bm.bmv_iflags = BMV_IF_PREALLOC | BMV_IF_NO_HOLES;
 	if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR)
 		bm.bmv_iflags |= BMV_IF_ATTRFORK;
 	if (!(fieinfo->fi_flags & FIEMAP_FLAG_SYNC))
@@ -702,7 +644,6 @@ xfs_vn_fiemap(
 
 static const struct inode_operations xfs_inode_operations = {
 	.check_acl		= xfs_check_acl,
-	.truncate		= xfs_vn_truncate,
 	.getattr		= xfs_vn_getattr,
 	.setattr		= xfs_vn_setattr,
 	.setxattr		= generic_setxattr,
@@ -819,7 +760,9 @@ xfs_setup_inode(
 
 	inode->i_ino = ip->i_ino;
 	inode->i_state = I_NEW;
-	inode_add_to_lists(ip->i_mount->m_super, inode);
+
+	inode_sb_list_add(inode);
+	insert_inode_hash(inode);
 
 	inode->i_mode	= ip->i_d.di_mode;
 	inode->i_nlink	= ip->i_d.di_nlink;
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index facfb323a706..214ddd71ff79 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -71,6 +71,7 @@
 #include <linux/random.h>
 #include <linux/ctype.h>
 #include <linux/writeback.h>
+#include <linux/capability.h>
 
 #include <asm/page.h>
 #include <asm/div64.h>
@@ -79,15 +80,12 @@
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
 
-#include <xfs_cred.h>
 #include <xfs_vnode.h>
 #include <xfs_stats.h>
 #include <xfs_sysctl.h>
 #include <xfs_iops.h>
 #include <xfs_aops.h>
 #include <xfs_super.h>
-#include <xfs_globals.h>
-#include <xfs_fs_subr.h>
 #include <xfs_buf.h>
 
 /*
@@ -145,7 +143,7 @@
 #define SYNCHRONIZE()	barrier()
 #define __return_address __builtin_return_address(0)
 
-#define dfltprid	0
+#define XFS_PROJID_DEFAULT	0
 #define MAXPATHLEN	1024
 
 #define MIN(a,b)	(min(a,b))
@@ -157,8 +155,6 @@
  */
 #define xfs_sort(a,n,s,fn)	sort(a,n,s,fn,NULL)
 #define xfs_stack_trace()	dump_stack()
-#define xfs_itruncate_data(ip, off)	\
-	(-vmtruncate(VFS_I(ip), (off)))
 
 
 /* Move the kernel do_div definition off to one side */
diff --git a/fs/xfs/linux-2.6/xfs_quotaops.c b/fs/xfs/linux-2.6/xfs_quotaops.c
index 067cafbfc635..29b9d642e93d 100644
--- a/fs/xfs/linux-2.6/xfs_quotaops.c
+++ b/fs/xfs/linux-2.6/xfs_quotaops.c
@@ -16,7 +16,6 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_dmapi.h"
 #include "xfs_sb.h"
 #include "xfs_inum.h"
 #include "xfs_log.h"
@@ -69,15 +68,15 @@ xfs_fs_set_xstate(
 	if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
 
-	if (uflags & XFS_QUOTA_UDQ_ACCT)
+	if (uflags & FS_QUOTA_UDQ_ACCT)
 		flags |= XFS_UQUOTA_ACCT;
-	if (uflags & XFS_QUOTA_PDQ_ACCT)
+	if (uflags & FS_QUOTA_PDQ_ACCT)
 		flags |= XFS_PQUOTA_ACCT;
-	if (uflags & XFS_QUOTA_GDQ_ACCT)
+	if (uflags & FS_QUOTA_GDQ_ACCT)
 		flags |= XFS_GQUOTA_ACCT;
-	if (uflags & XFS_QUOTA_UDQ_ENFD)
+	if (uflags & FS_QUOTA_UDQ_ENFD)
 		flags |= XFS_UQUOTA_ENFD;
-	if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD))
+	if (uflags & (FS_QUOTA_PDQ_ENFD|FS_QUOTA_GDQ_ENFD))
 		flags |= XFS_OQUOTA_ENFD;
 
 	switch (op) {
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 80938c736c27..9f3a78fe6ae4 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -25,14 +25,11 @@
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -43,12 +40,10 @@
 #include "xfs_error.h"
 #include "xfs_itable.h"
 #include "xfs_fsops.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_utils.h"
 #include "xfs_vnodeops.h"
-#include "xfs_version.h"
 #include "xfs_log_priv.h"
 #include "xfs_trans_priv.h"
 #include "xfs_filestream.h"
@@ -94,7 +89,6 @@ mempool_t *xfs_ioend_pool;
 #define MNTOPT_BARRIER	"barrier"	/* use writer barriers for log write and
 					 * unwritten extent conversion */
 #define MNTOPT_NOBARRIER "nobarrier"	/* .. disable */
-#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
 #define MNTOPT_64BITINODE   "inode64"	/* inodes can be allocated anywhere */
 #define MNTOPT_IKEEP	"ikeep"		/* do not free empty inode clusters */
 #define MNTOPT_NOIKEEP	"noikeep"	/* free empty inode clusters */
@@ -116,9 +110,6 @@ mempool_t *xfs_ioend_pool;
 #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
 #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
 #define MNTOPT_QUOTANOENF  "qnoenforce"	/* same as uqnoenforce */
-#define MNTOPT_DMAPI	"dmapi"		/* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_XDSM	"xdsm"		/* DMI enabled (DMAPI / XDSM) */
-#define MNTOPT_DMI	"dmi"		/* DMI enabled (DMAPI / XDSM) */
 #define MNTOPT_DELAYLOG   "delaylog"	/* Delayed loging enabled */
 #define MNTOPT_NODELAYLOG "nodelaylog"	/* Delayed loging disabled */
 
@@ -172,15 +163,13 @@ suffix_strtoul(char *s, char **endp, unsigned int base)
 STATIC int
 xfs_parseargs(
 	struct xfs_mount	*mp,
-	char			*options,
-	char			**mtpt)
+	char			*options)
 {
 	struct super_block	*sb = mp->m_super;
 	char			*this_char, *value, *eov;
 	int			dsunit = 0;
 	int			dswidth = 0;
 	int			iosize = 0;
-	int			dmapi_implies_ikeep = 1;
 	__uint8_t		iosizelog = 0;
 
 	/*
@@ -243,15 +232,10 @@ xfs_parseargs(
 			if (!mp->m_logname)
 				return ENOMEM;
 		} else if (!strcmp(this_char, MNTOPT_MTPT)) {
-			if (!value || !*value) {
-				cmn_err(CE_WARN,
-					"XFS: %s option requires an argument",
-					this_char);
-				return EINVAL;
-			}
-			*mtpt = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
-			if (!*mtpt)
-				return ENOMEM;
+			cmn_err(CE_WARN,
+				"XFS: %s option not allowed on this system",
+				this_char);
+			return EINVAL;
 		} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
 			if (!value || !*value) {
 				cmn_err(CE_WARN,
@@ -288,8 +272,6 @@ xfs_parseargs(
 			mp->m_flags &= ~XFS_MOUNT_GRPID;
 		} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
 			mp->m_flags |= XFS_MOUNT_WSYNC;
-		} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
-			mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
 		} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
 			mp->m_flags |= XFS_MOUNT_NORECOVERY;
 		} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
@@ -329,7 +311,6 @@ xfs_parseargs(
 		} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
 			mp->m_flags |= XFS_MOUNT_IKEEP;
 		} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
-			dmapi_implies_ikeep = 0;
 			mp->m_flags &= ~XFS_MOUNT_IKEEP;
 		} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
 			mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
@@ -370,12 +351,6 @@ xfs_parseargs(
 		} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
 			mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
 			mp->m_qflags &= ~XFS_OQUOTA_ENFD;
-		} else if (!strcmp(this_char, MNTOPT_DMAPI)) {
-			mp->m_flags |= XFS_MOUNT_DMAPI;
-		} else if (!strcmp(this_char, MNTOPT_XDSM)) {
-			mp->m_flags |= XFS_MOUNT_DMAPI;
-		} else if (!strcmp(this_char, MNTOPT_DMI)) {
-			mp->m_flags |= XFS_MOUNT_DMAPI;
 		} else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
 			mp->m_flags |= XFS_MOUNT_DELAYLOG;
 			cmn_err(CE_WARN,
@@ -387,9 +362,11 @@ xfs_parseargs(
 			cmn_err(CE_WARN,
 	"XFS: ihashsize no longer used, option is deprecated.");
 		} else if (!strcmp(this_char, "osyncisdsync")) {
-			/* no-op, this is now the default */
 			cmn_err(CE_WARN,
-	"XFS: osyncisdsync is now the default, option is deprecated.");
+	"XFS: osyncisdsync has no effect, option is deprecated.");
+		} else if (!strcmp(this_char, "osyncisosync")) {
+			cmn_err(CE_WARN,
+	"XFS: osyncisosync has no effect, option is deprecated.");
 		} else if (!strcmp(this_char, "irixsgid")) {
 			cmn_err(CE_WARN,
 	"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
@@ -430,12 +407,6 @@ xfs_parseargs(
 		return EINVAL;
 	}
 
-	if ((mp->m_flags & XFS_MOUNT_DMAPI) && (!*mtpt || *mtpt[0] == '\0')) {
-		printk("XFS: %s option needs the mount point option as well\n",
-			MNTOPT_DMAPI);
-		return EINVAL;
-	}
-
 	if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
 		cmn_err(CE_WARN,
 			"XFS: sunit and swidth must be specified together");
@@ -449,18 +420,6 @@ xfs_parseargs(
 		return EINVAL;
 	}
 
-	/*
-	 * Applications using DMI filesystems often expect the
-	 * inode generation number to be monotonically increasing.
-	 * If we delete inode chunks we break this assumption, so
-	 * keep unused inode chunks on disk for DMI filesystems
-	 * until we come up with a better solution.
-	 * Note that if "ikeep" or "noikeep" mount options are
-	 * supplied, then they are honored.
-	 */
-	if ((mp->m_flags & XFS_MOUNT_DMAPI) && dmapi_implies_ikeep)
-		mp->m_flags |= XFS_MOUNT_IKEEP;
-
 done:
 	if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) {
 		/*
@@ -539,10 +498,8 @@ xfs_showargs(
 		{ XFS_MOUNT_SWALLOC,		"," MNTOPT_SWALLOC },
 		{ XFS_MOUNT_NOUUID,		"," MNTOPT_NOUUID },
 		{ XFS_MOUNT_NORECOVERY,		"," MNTOPT_NORECOVERY },
-		{ XFS_MOUNT_OSYNCISOSYNC,	"," MNTOPT_OSYNCISOSYNC },
 		{ XFS_MOUNT_ATTR2,		"," MNTOPT_ATTR2 },
 		{ XFS_MOUNT_FILESTREAMS,	"," MNTOPT_FILESTREAM },
-		{ XFS_MOUNT_DMAPI,		"," MNTOPT_DMAPI },
 		{ XFS_MOUNT_GRPID,		"," MNTOPT_GRPID },
 		{ XFS_MOUNT_DELAYLOG,		"," MNTOPT_DELAYLOG },
 		{ 0, NULL }
@@ -619,7 +576,7 @@ xfs_max_file_offset(
 
 	/* Figure out maximum filesize, on Linux this can depend on
 	 * the filesystem blocksize (on 32 bit platforms).
-	 * __block_prepare_write does this in an [unsigned] long...
+	 * __block_write_begin does this in an [unsigned] long...
 	 *      page->index << (PAGE_CACHE_SHIFT - bbits)
 	 * So, for page sized blocks (4K on 32 bit platforms),
 	 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
@@ -687,7 +644,7 @@ xfs_barrier_test(
 	XFS_BUF_ORDERED(sbp);
 
 	xfsbdstrat(mp, sbp);
-	error = xfs_iowait(sbp);
+	error = xfs_buf_iowait(sbp);
 
 	/*
 	 * Clear all the flags we set and possible error state in the
@@ -735,8 +692,7 @@ void
 xfs_blkdev_issue_flush(
 	xfs_buftarg_t		*buftarg)
 {
-	blkdev_issue_flush(buftarg->bt_bdev, GFP_KERNEL, NULL,
-			BLKDEV_IFL_WAIT);
+	blkdev_issue_flush(buftarg->bt_bdev, GFP_KERNEL, NULL);
 }
 
 STATIC void
@@ -800,18 +756,20 @@ xfs_open_devices(
 	 * Setup xfs_mount buffer target pointers
 	 */
 	error = ENOMEM;
-	mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0, mp->m_fsname);
+	mp->m_ddev_targp = xfs_alloc_buftarg(mp, ddev, 0, mp->m_fsname);
 	if (!mp->m_ddev_targp)
 		goto out_close_rtdev;
 
 	if (rtdev) {
-		mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1, mp->m_fsname);
+		mp->m_rtdev_targp = xfs_alloc_buftarg(mp, rtdev, 1,
+							mp->m_fsname);
 		if (!mp->m_rtdev_targp)
 			goto out_free_ddev_targ;
 	}
 
 	if (logdev && logdev != ddev) {
-		mp->m_logdev_targp = xfs_alloc_buftarg(logdev, 1, mp->m_fsname);
+		mp->m_logdev_targp = xfs_alloc_buftarg(mp, logdev, 1,
+							mp->m_fsname);
 		if (!mp->m_logdev_targp)
 			goto out_free_rtdev_targ;
 	} else {
@@ -947,7 +905,7 @@ xfs_fs_destroy_inode(
 {
 	struct xfs_inode	*ip = XFS_I(inode);
 
-	xfs_itrace_entry(ip);
+	trace_xfs_destroy_inode(ip);
 
 	XFS_STATS_INC(vn_reclaim);
 
@@ -1014,12 +972,7 @@ xfs_fs_inode_init_once(
 
 /*
  * Dirty the XFS inode when mark_inode_dirty_sync() is called so that
- * we catch unlogged VFS level updates to the inode. Care must be taken
- * here - the transaction code calls mark_inode_dirty_sync() to mark the
- * VFS inode dirty in a transaction and clears the i_update_core field;
- * it must clear the field after calling mark_inode_dirty_sync() to
- * correctly indicate that the dirty state has been propagated into the
- * inode log item.
+ * we catch unlogged VFS level updates to the inode.
  *
  * We need the barrier() to maintain correct ordering between unlogged
  * updates and the transaction commit code that clears the i_update_core
@@ -1063,10 +1016,8 @@ xfs_log_inode(
 	 * an inode in another recent transaction.  So we play it safe and
 	 * fire off the transaction anyway.
 	 */
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	xfs_trans_set_sync(tp);
 	error = xfs_trans_commit(tp, 0);
 	xfs_ilock_demote(ip, XFS_ILOCK_EXCL);
 
@@ -1082,27 +1033,18 @@ xfs_fs_write_inode(
 	struct xfs_mount	*mp = ip->i_mount;
 	int			error = EAGAIN;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_write_inode(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
 	if (wbc->sync_mode == WB_SYNC_ALL) {
 		/*
-		 * Make sure the inode has hit stable storage.  By using the
-		 * log and the fsync transactions we reduce the IOs we have
-		 * to do here from two (log and inode) to just the log.
-		 *
-		 * Note: We still need to do a delwri write of the inode after
-		 * this to flush it to the backing buffer so that bulkstat
-		 * works properly if this is the first time the inode has been
-		 * written.  Because we hold the ilock atomically over the
-		 * transaction commit and the inode flush we are guaranteed
-		 * that the inode is not pinned when it returns. If the flush
-		 * lock is already held, then the inode has already been
-		 * flushed once and we don't need to flush it again.  Hence
-		 * the code will only flush the inode if it isn't already
-		 * being flushed.
+		 * Make sure the inode has made it it into the log.  Instead
+		 * of forcing it all the way to stable storage using a
+		 * synchronous transaction we let the log force inside the
+		 * ->sync_fs call do that for thus, which reduces the number
+		 * of synchronous log foces dramatically.
 		 */
 		xfs_ioend_wait(ip);
 		xfs_ilock(ip, XFS_ILOCK_SHARED);
@@ -1116,27 +1058,29 @@ xfs_fs_write_inode(
 		 * We make this non-blocking if the inode is contended, return
 		 * EAGAIN to indicate to the caller that they did not succeed.
 		 * This prevents the flush path from blocking on inodes inside
-		 * another operation right now, they get caught later by xfs_sync.
+		 * another operation right now, they get caught later by
+		 * xfs_sync.
 		 */
 		if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
 			goto out;
-	}
 
-	if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip))
-		goto out_unlock;
+		if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip))
+			goto out_unlock;
 
-	/*
-	 * Now we have the flush lock and the inode is not pinned, we can check
-	 * if the inode is really clean as we know that there are no pending
-	 * transaction completions, it is not waiting on the delayed write
-	 * queue and there is no IO in progress.
-	 */
-	if (xfs_inode_clean(ip)) {
-		xfs_ifunlock(ip);
-		error = 0;
-		goto out_unlock;
+		/*
+		 * Now we have the flush lock and the inode is not pinned, we
+		 * can check if the inode is really clean as we know that
+		 * there are no pending transaction completions, it is not
+		 * waiting on the delayed write queue and there is no IO in
+		 * progress.
+		 */
+		if (xfs_inode_clean(ip)) {
+			xfs_ifunlock(ip);
+			error = 0;
+			goto out_unlock;
+		}
+		error = xfs_iflush(ip, 0);
 	}
-	error = xfs_iflush(ip, 0);
 
  out_unlock:
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@ -1151,12 +1095,15 @@ xfs_fs_write_inode(
 }
 
 STATIC void
-xfs_fs_clear_inode(
+xfs_fs_evict_inode(
 	struct inode		*inode)
 {
 	xfs_inode_t		*ip = XFS_I(inode);
 
-	xfs_itrace_entry(ip);
+	trace_xfs_evict_inode(ip);
+
+	truncate_inode_pages(&inode->i_data, 0);
+	end_writeback(inode);
 	XFS_STATS_INC(vn_rele);
 	XFS_STATS_INC(vn_remove);
 	XFS_STATS_DEC(vn_active);
@@ -1193,22 +1140,13 @@ xfs_fs_put_super(
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
+	/*
+	 * Unregister the memory shrinker before we tear down the mount
+	 * structure so we don't have memory reclaim racing with us here.
+	 */
+	xfs_inode_shrinker_unregister(mp);
 	xfs_syncd_stop(mp);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
-		/*
-		 * XXX(hch): this should be SYNC_WAIT.
-		 *
-		 * Or more likely not needed at all because the VFS is already
-		 * calling ->sync_fs after shutting down all filestem
-		 * operations and just before calling ->put_super.
-		 */
-		xfs_sync_data(mp, 0);
-		xfs_sync_attr(mp, 0);
-	}
-
-	XFS_SEND_PREUNMOUNT(mp);
-
 	/*
 	 * Blow away any referenced inode in the filestreams cache.
 	 * This can and will cause log traffic as inodes go inactive
@@ -1218,14 +1156,10 @@ xfs_fs_put_super(
 
 	XFS_bflush(mp->m_ddev_targp);
 
-	XFS_SEND_UNMOUNT(mp);
-
 	xfs_unmountfs(mp);
 	xfs_freesb(mp);
-	xfs_inode_shrinker_unregister(mp);
 	xfs_icsb_destroy_counters(mp);
 	xfs_close_devices(mp);
-	xfs_dmops_put(mp);
 	xfs_free_fsname(mp);
 	kfree(mp);
 }
@@ -1287,6 +1221,7 @@ xfs_fs_statfs(
 	struct xfs_inode	*ip = XFS_I(dentry->d_inode);
 	__uint64_t		fakeinos, id;
 	xfs_extlen_t		lsize;
+	__int64_t		ffree;
 
 	statp->f_type = XFS_SB_MAGIC;
 	statp->f_namelen = MAXNAMELEN - 1;
@@ -1310,7 +1245,11 @@ xfs_fs_statfs(
 		statp->f_files = min_t(typeof(statp->f_files),
 					statp->f_files,
 					mp->m_maxicount);
-	statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
+
+	/* make sure statp->f_ffree does not underflow */
+	ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
+	statp->f_ffree = max_t(__int64_t, ffree, 0);
+
 	spin_unlock(&mp->m_sb_lock);
 
 	if ((ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) ||
@@ -1463,7 +1402,7 @@ xfs_fs_freeze(
 
 	xfs_save_resvblks(mp);
 	xfs_quiesce_attr(mp);
-	return -xfs_fs_log_dummy(mp);
+	return -xfs_fs_log_dummy(mp, SYNC_WAIT);
 }
 
 STATIC int
@@ -1543,7 +1482,6 @@ xfs_fs_fill_super(
 	struct inode		*root;
 	struct xfs_mount	*mp = NULL;
 	int			flags = 0, error = ENOMEM;
-	char			*mtpt = NULL;
 
 	mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL);
 	if (!mp)
@@ -1559,7 +1497,7 @@ xfs_fs_fill_super(
 	mp->m_super = sb;
 	sb->s_fs_info = mp;
 
-	error = xfs_parseargs(mp, (char *)data, &mtpt);
+	error = xfs_parseargs(mp, (char *)data);
 	if (error)
 		goto out_free_fsname;
 
@@ -1571,19 +1509,16 @@ xfs_fs_fill_super(
 #endif
 	sb->s_op = &xfs_super_operations;
 
-	error = xfs_dmops_get(mp);
-	if (error)
-		goto out_free_fsname;
-
 	if (silent)
 		flags |= XFS_MFSI_QUIET;
 
 	error = xfs_open_devices(mp);
 	if (error)
-		goto out_put_dmops;
+		goto out_free_fsname;
 
-	if (xfs_icsb_init_counters(mp))
-		mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB;
+	error = xfs_icsb_init_counters(mp);
+	if (error)
+		goto out_close_devices;
 
 	error = xfs_readsb(mp, flags);
 	if (error)
@@ -1608,8 +1543,6 @@ xfs_fs_fill_super(
 	if (error)
 		goto out_filestream_unmount;
 
-	XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, mtpt, mp->m_fsname);
-
 	sb->s_magic = XFS_SB_MAGIC;
 	sb->s_blocksize = mp->m_sb.sb_blocksize;
 	sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
@@ -1638,7 +1571,6 @@ xfs_fs_fill_super(
 
 	xfs_inode_shrinker_register(mp);
 
-	kfree(mtpt);
 	return 0;
 
  out_filestream_unmount:
@@ -1647,12 +1579,10 @@ xfs_fs_fill_super(
 	xfs_freesb(mp);
  out_destroy_counters:
 	xfs_icsb_destroy_counters(mp);
+ out_close_devices:
 	xfs_close_devices(mp);
- out_put_dmops:
-	xfs_dmops_put(mp);
  out_free_fsname:
 	xfs_free_fsname(mp);
-	kfree(mtpt);
 	kfree(mp);
  out:
 	return -error;
@@ -1679,16 +1609,14 @@ xfs_fs_fill_super(
 	goto out_free_sb;
 }
 
-STATIC int
-xfs_fs_get_sb(
+STATIC struct dentry *
+xfs_fs_mount(
 	struct file_system_type	*fs_type,
 	int			flags,
 	const char		*dev_name,
-	void			*data,
-	struct vfsmount		*mnt)
+	void			*data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super);
 }
 
 static const struct super_operations xfs_super_operations = {
@@ -1696,7 +1624,7 @@ static const struct super_operations xfs_super_operations = {
 	.destroy_inode		= xfs_fs_destroy_inode,
 	.dirty_inode		= xfs_fs_dirty_inode,
 	.write_inode		= xfs_fs_write_inode,
-	.clear_inode		= xfs_fs_clear_inode,
+	.evict_inode		= xfs_fs_evict_inode,
 	.put_super		= xfs_fs_put_super,
 	.sync_fs		= xfs_fs_sync_fs,
 	.freeze_fs		= xfs_fs_freeze,
@@ -1709,7 +1637,7 @@ static const struct super_operations xfs_super_operations = {
 static struct file_system_type xfs_fs_type = {
 	.owner			= THIS_MODULE,
 	.name			= "xfs",
-	.get_sb			= xfs_fs_get_sb,
+	.mount			= xfs_fs_mount,
 	.kill_sb		= kill_block_super,
 	.fs_flags		= FS_REQUIRES_DEV,
 };
@@ -1759,6 +1687,12 @@ xfs_init_zones(void)
 	if (!xfs_trans_zone)
 		goto out_destroy_ifork_zone;
 
+	xfs_log_item_desc_zone =
+		kmem_zone_init(sizeof(struct xfs_log_item_desc),
+			       "xfs_log_item_desc");
+	if (!xfs_log_item_desc_zone)
+		goto out_destroy_trans_zone;
+
 	/*
 	 * The size of the zone allocated buf log item is the maximum
 	 * size possible under XFS.  This wastes a little bit of memory,
@@ -1768,7 +1702,7 @@ xfs_init_zones(void)
 				(((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) /
 				  NBWORD) * sizeof(int))), "xfs_buf_item");
 	if (!xfs_buf_item_zone)
-		goto out_destroy_trans_zone;
+		goto out_destroy_log_item_desc_zone;
 
 	xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) +
 			((XFS_EFD_MAX_FAST_EXTENTS - 1) *
@@ -1805,6 +1739,8 @@ xfs_init_zones(void)
 	kmem_zone_destroy(xfs_efd_zone);
  out_destroy_buf_item_zone:
 	kmem_zone_destroy(xfs_buf_item_zone);
+ out_destroy_log_item_desc_zone:
+	kmem_zone_destroy(xfs_log_item_desc_zone);
  out_destroy_trans_zone:
 	kmem_zone_destroy(xfs_trans_zone);
  out_destroy_ifork_zone:
@@ -1835,6 +1771,7 @@ xfs_destroy_zones(void)
 	kmem_zone_destroy(xfs_efi_zone);
 	kmem_zone_destroy(xfs_efd_zone);
 	kmem_zone_destroy(xfs_buf_item_zone);
+	kmem_zone_destroy(xfs_log_item_desc_zone);
 	kmem_zone_destroy(xfs_trans_zone);
 	kmem_zone_destroy(xfs_ifork_zone);
 	kmem_zone_destroy(xfs_dabuf_zone);
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index 519618e9279e..50a3266c999e 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -56,23 +56,17 @@ extern void xfs_qm_exit(void);
 # define XFS_BIGFS_STRING
 #endif
 
-#ifdef CONFIG_XFS_DMAPI
-# define XFS_DMAPI_STRING	"dmapi support, "
-#else
-# define XFS_DMAPI_STRING
-#endif
-
 #ifdef DEBUG
 # define XFS_DBG_STRING		"debug"
 #else
 # define XFS_DBG_STRING		"no debug"
 #endif
 
+#define XFS_VERSION_STRING	"SGI XFS"
 #define XFS_BUILD_OPTIONS	XFS_ACL_STRING \
 				XFS_SECURITY_STRING \
 				XFS_REALTIME_STRING \
 				XFS_BIGFS_STRING \
-				XFS_DMAPI_STRING \
 				XFS_DBG_STRING /* DBG must be last */
 
 struct xfs_inode;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index a51a07c3a70c..37d33254981d 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -24,67 +24,54 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_inode.h"
 #include "xfs_dinode.h"
 #include "xfs_error.h"
-#include "xfs_mru_cache.h"
 #include "xfs_filestream.h"
 #include "xfs_vnodeops.h"
-#include "xfs_utils.h"
-#include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
-#include "xfs_rw.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
+#include "xfs_fsops.h"
 
 #include <linux/kthread.h>
 #include <linux/freezer.h>
 
+/*
+ * The inode lookup is done in batches to keep the amount of lock traffic and
+ * radix tree lookups to a minimum. The batch size is a trade off between
+ * lookup reduction and stack usage. This is in the reclaim path, so we can't
+ * be too greedy.
+ */
+#define XFS_LOOKUP_BATCH	32
 
-STATIC xfs_inode_t *
-xfs_inode_ag_lookup(
-	struct xfs_mount	*mp,
-	struct xfs_perag	*pag,
-	uint32_t		*first_index,
-	int			tag)
+STATIC int
+xfs_inode_ag_walk_grab(
+	struct xfs_inode	*ip)
 {
-	int			nr_found;
-	struct xfs_inode	*ip;
+	struct inode		*inode = VFS_I(ip);
 
-	/*
-	 * use a gang lookup to find the next inode in the tree
-	 * as the tree is sparse and a gang lookup walks to find
-	 * the number of objects requested.
-	 */
-	if (tag == XFS_ICI_NO_TAG) {
-		nr_found = radix_tree_gang_lookup(&pag->pag_ici_root,
-				(void **)&ip, *first_index, 1);
-	} else {
-		nr_found = radix_tree_gang_lookup_tag(&pag->pag_ici_root,
-				(void **)&ip, *first_index, 1, tag);
+	/* nothing to sync during shutdown */
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return EFSCORRUPTED;
+
+	/* avoid new or reclaimable inodes. Leave for reclaim code to flush */
+	if (xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM))
+		return ENOENT;
+
+	/* If we can't grab the inode, it must on it's way to reclaim. */
+	if (!igrab(inode))
+		return ENOENT;
+
+	if (is_bad_inode(inode)) {
+		IRELE(ip);
+		return ENOENT;
 	}
-	if (!nr_found)
-		return NULL;
 
-	/*
-	 * Update the index for the next lookup. Catch overflows
-	 * into the next AG range which can occur if we have inodes
-	 * in the last block of the AG and we are currently
-	 * pointing to the last inode.
-	 */
-	*first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1);
-	if (*first_index < XFS_INO_TO_AGINO(mp, ip->i_ino))
-		return NULL;
-	return ip;
+	/* inode is valid */
+	return 0;
 }
 
 STATIC int
@@ -93,49 +80,75 @@ xfs_inode_ag_walk(
 	struct xfs_perag	*pag,
 	int			(*execute)(struct xfs_inode *ip,
 					   struct xfs_perag *pag, int flags),
-	int			flags,
-	int			tag,
-	int			exclusive,
-	int			*nr_to_scan)
+	int			flags)
 {
 	uint32_t		first_index;
 	int			last_error = 0;
 	int			skipped;
+	int			done;
+	int			nr_found;
 
 restart:
+	done = 0;
 	skipped = 0;
 	first_index = 0;
+	nr_found = 0;
 	do {
+		struct xfs_inode *batch[XFS_LOOKUP_BATCH];
 		int		error = 0;
-		xfs_inode_t	*ip;
+		int		i;
 
-		if (exclusive)
-			write_lock(&pag->pag_ici_lock);
-		else
-			read_lock(&pag->pag_ici_lock);
-		ip = xfs_inode_ag_lookup(mp, pag, &first_index, tag);
-		if (!ip) {
-			if (exclusive)
-				write_unlock(&pag->pag_ici_lock);
-			else
-				read_unlock(&pag->pag_ici_lock);
+		read_lock(&pag->pag_ici_lock);
+		nr_found = radix_tree_gang_lookup(&pag->pag_ici_root,
+					(void **)batch, first_index,
+					XFS_LOOKUP_BATCH);
+		if (!nr_found) {
+			read_unlock(&pag->pag_ici_lock);
 			break;
 		}
 
-		/* execute releases pag->pag_ici_lock */
-		error = execute(ip, pag, flags);
-		if (error == EAGAIN) {
-			skipped++;
-			continue;
+		/*
+		 * Grab the inodes before we drop the lock. if we found
+		 * nothing, nr == 0 and the loop will be skipped.
+		 */
+		for (i = 0; i < nr_found; i++) {
+			struct xfs_inode *ip = batch[i];
+
+			if (done || xfs_inode_ag_walk_grab(ip))
+				batch[i] = NULL;
+
+			/*
+			 * Update the index for the next lookup. Catch overflows
+			 * into the next AG range which can occur if we have inodes
+			 * in the last block of the AG and we are currently
+			 * pointing to the last inode.
+			 */
+			first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1);
+			if (first_index < XFS_INO_TO_AGINO(mp, ip->i_ino))
+				done = 1;
+		}
+
+		/* unlock now we've grabbed the inodes. */
+		read_unlock(&pag->pag_ici_lock);
+
+		for (i = 0; i < nr_found; i++) {
+			if (!batch[i])
+				continue;
+			error = execute(batch[i], pag, flags);
+			IRELE(batch[i]);
+			if (error == EAGAIN) {
+				skipped++;
+				continue;
+			}
+			if (error && last_error != EFSCORRUPTED)
+				last_error = error;
 		}
-		if (error)
-			last_error = error;
 
 		/* bail out if the filesystem is corrupted.  */
 		if (error == EFSCORRUPTED)
 			break;
 
-	} while ((*nr_to_scan)--);
+	} while (nr_found && !done);
 
 	if (skipped) {
 		delay(1);
@@ -144,110 +157,32 @@ restart:
 	return last_error;
 }
 
-/*
- * Select the next per-ag structure to iterate during the walk. The reclaim
- * walk is optimised only to walk AGs with reclaimable inodes in them.
- */
-static struct xfs_perag *
-xfs_inode_ag_iter_next_pag(
-	struct xfs_mount	*mp,
-	xfs_agnumber_t		*first,
-	int			tag)
-{
-	struct xfs_perag	*pag = NULL;
-
-	if (tag == XFS_ICI_RECLAIM_TAG) {
-		int found;
-		int ref;
-
-		spin_lock(&mp->m_perag_lock);
-		found = radix_tree_gang_lookup_tag(&mp->m_perag_tree,
-				(void **)&pag, *first, 1, tag);
-		if (found <= 0) {
-			spin_unlock(&mp->m_perag_lock);
-			return NULL;
-		}
-		*first = pag->pag_agno + 1;
-		/* open coded pag reference increment */
-		ref = atomic_inc_return(&pag->pag_ref);
-		spin_unlock(&mp->m_perag_lock);
-		trace_xfs_perag_get_reclaim(mp, pag->pag_agno, ref, _RET_IP_);
-	} else {
-		pag = xfs_perag_get(mp, *first);
-		(*first)++;
-	}
-	return pag;
-}
-
 int
 xfs_inode_ag_iterator(
 	struct xfs_mount	*mp,
 	int			(*execute)(struct xfs_inode *ip,
 					   struct xfs_perag *pag, int flags),
-	int			flags,
-	int			tag,
-	int			exclusive,
-	int			*nr_to_scan)
+	int			flags)
 {
 	struct xfs_perag	*pag;
 	int			error = 0;
 	int			last_error = 0;
 	xfs_agnumber_t		ag;
-	int			nr;
 
-	nr = nr_to_scan ? *nr_to_scan : INT_MAX;
 	ag = 0;
-	while ((pag = xfs_inode_ag_iter_next_pag(mp, &ag, tag))) {
-		error = xfs_inode_ag_walk(mp, pag, execute, flags, tag,
-						exclusive, &nr);
+	while ((pag = xfs_perag_get(mp, ag))) {
+		ag = pag->pag_agno + 1;
+		error = xfs_inode_ag_walk(mp, pag, execute, flags);
 		xfs_perag_put(pag);
 		if (error) {
 			last_error = error;
 			if (error == EFSCORRUPTED)
 				break;
 		}
-		if (nr <= 0)
-			break;
 	}
-	if (nr_to_scan)
-		*nr_to_scan = nr;
 	return XFS_ERROR(last_error);
 }
 
-/* must be called with pag_ici_lock held and releases it */
-int
-xfs_sync_inode_valid(
-	struct xfs_inode	*ip,
-	struct xfs_perag	*pag)
-{
-	struct inode		*inode = VFS_I(ip);
-	int			error = EFSCORRUPTED;
-
-	/* nothing to sync during shutdown */
-	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
-		goto out_unlock;
-
-	/* avoid new or reclaimable inodes. Leave for reclaim code to flush */
-	error = ENOENT;
-	if (xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM))
-		goto out_unlock;
-
-	/* If we can't grab the inode, it must on it's way to reclaim. */
-	if (!igrab(inode))
-		goto out_unlock;
-
-	if (is_bad_inode(inode)) {
-		IRELE(ip);
-		goto out_unlock;
-	}
-
-	/* inode is valid */
-	error = 0;
-out_unlock:
-	read_unlock(&pag->pag_ici_lock);
-	return error;
-}
-
 STATIC int
 xfs_sync_inode_data(
 	struct xfs_inode	*ip,
@@ -258,10 +193,6 @@ xfs_sync_inode_data(
 	struct address_space *mapping = inode->i_mapping;
 	int			error = 0;
 
-	error = xfs_sync_inode_valid(ip, pag);
-	if (error)
-		return error;
-
 	if (!mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
 		goto out_wait;
 
@@ -278,7 +209,6 @@ xfs_sync_inode_data(
  out_wait:
 	if (flags & SYNC_WAIT)
 		xfs_ioend_wait(ip);
-	IRELE(ip);
 	return error;
 }
 
@@ -290,10 +220,6 @@ xfs_sync_inode_attr(
 {
 	int			error = 0;
 
-	error = xfs_sync_inode_valid(ip, pag);
-	if (error)
-		return error;
-
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 	if (xfs_inode_clean(ip))
 		goto out_unlock;
@@ -312,14 +238,13 @@ xfs_sync_inode_attr(
 
  out_unlock:
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
-	IRELE(ip);
 	return error;
 }
 
 /*
  * Write out pagecache data for the whole filesystem.
  */
-int
+STATIC int
 xfs_sync_data(
 	struct xfs_mount	*mp,
 	int			flags)
@@ -328,8 +253,7 @@ xfs_sync_data(
 
 	ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0);
 
-	error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags,
-				      XFS_ICI_NO_TAG, 0, NULL);
+	error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags);
 	if (error)
 		return XFS_ERROR(error);
 
@@ -340,48 +264,14 @@ xfs_sync_data(
 /*
  * Write out inode metadata (attributes) for the whole filesystem.
  */
-int
+STATIC int
 xfs_sync_attr(
 	struct xfs_mount	*mp,
 	int			flags)
 {
 	ASSERT((flags & ~SYNC_WAIT) == 0);
 
-	return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags,
-				     XFS_ICI_NO_TAG, 0, NULL);
-}
-
-STATIC int
-xfs_commit_dummy_trans(
-	struct xfs_mount	*mp,
-	uint			flags)
-{
-	struct xfs_inode	*ip = mp->m_rootip;
-	struct xfs_trans	*tp;
-	int			error;
-
-	/*
-	 * Put a dummy transaction in the log to tell recovery
-	 * that all others are OK.
-	 */
-	tp = xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
-	error = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
-	if (error) {
-		xfs_trans_cancel(tp, 0);
-		return error;
-	}
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	error = xfs_trans_commit(tp, 0);
-	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-
-	/* the log force ensures this transaction is pushed to disk */
-	xfs_log_force(mp, (flags & SYNC_WAIT) ? XFS_LOG_SYNC : 0);
-	return error;
+	return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags);
 }
 
 STATIC int
@@ -444,7 +334,7 @@ xfs_quiesce_data(
 
 	/* mark the log as covered if needed */
 	if (xfs_log_need_covered(mp))
-		error2 = xfs_commit_dummy_trans(mp, SYNC_WAIT);
+		error2 = xfs_fs_log_dummy(mp, SYNC_WAIT);
 
 	/* flush data-only devices */
 	if (mp->m_rtdev_targp)
@@ -575,7 +465,7 @@ xfs_flush_inodes(
 /*
  * Every sync period we need to unpin all items, reclaim inodes and sync
  * disk quotas.  We might need to cover the log to indicate that the
- * filesystem is idle.
+ * filesystem is idle and not frozen.
  */
 STATIC void
 xfs_sync_worker(
@@ -589,8 +479,9 @@ xfs_sync_worker(
 		xfs_reclaim_inodes(mp, 0);
 		/* dgc: errors ignored here */
 		error = xfs_qm_sync(mp, SYNC_TRYLOCK);
-		if (xfs_log_need_covered(mp))
-			error = xfs_commit_dummy_trans(mp, 0);
+		if (mp->m_super->s_frozen == SB_UNFROZEN &&
+		    xfs_log_need_covered(mp))
+			error = xfs_fs_log_dummy(mp, 0);
 	}
 	mp->m_sync_seq++;
 	wake_up(&mp->m_wait_single_sync_task);
@@ -710,14 +601,11 @@ xfs_inode_set_reclaim_tag(
 	xfs_perag_put(pag);
 }
 
-void
-__xfs_inode_clear_reclaim_tag(
-	xfs_mount_t	*mp,
+STATIC void
+__xfs_inode_clear_reclaim(
 	xfs_perag_t	*pag,
 	xfs_inode_t	*ip)
 {
-	radix_tree_tag_clear(&pag->pag_ici_root,
-			XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
 	pag->pag_ici_reclaimable--;
 	if (!pag->pag_ici_reclaimable) {
 		/* clear the reclaim tag from the perag radix tree */
@@ -731,6 +619,54 @@ __xfs_inode_clear_reclaim_tag(
 	}
 }
 
+void
+__xfs_inode_clear_reclaim_tag(
+	xfs_mount_t	*mp,
+	xfs_perag_t	*pag,
+	xfs_inode_t	*ip)
+{
+	radix_tree_tag_clear(&pag->pag_ici_root,
+			XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
+	__xfs_inode_clear_reclaim(pag, ip);
+}
+
+/*
+ * Grab the inode for reclaim exclusively.
+ * Return 0 if we grabbed it, non-zero otherwise.
+ */
+STATIC int
+xfs_reclaim_inode_grab(
+	struct xfs_inode	*ip,
+	int			flags)
+{
+
+	/*
+	 * do some unlocked checks first to avoid unnecceary lock traffic.
+	 * The first is a flush lock check, the second is a already in reclaim
+	 * check. Only do these checks if we are not going to block on locks.
+	 */
+	if ((flags & SYNC_TRYLOCK) &&
+	    (!ip->i_flush.done || __xfs_iflags_test(ip, XFS_IRECLAIM))) {
+		return 1;
+	}
+
+	/*
+	 * The radix tree lock here protects a thread in xfs_iget from racing
+	 * with us starting reclaim on the inode.  Once we have the
+	 * XFS_IRECLAIM flag set it will not touch us.
+	 */
+	spin_lock(&ip->i_flags_lock);
+	ASSERT_ALWAYS(__xfs_iflags_test(ip, XFS_IRECLAIMABLE));
+	if (__xfs_iflags_test(ip, XFS_IRECLAIM)) {
+		/* ignore as it is already under reclaim */
+		spin_unlock(&ip->i_flags_lock);
+		return 1;
+	}
+	__xfs_iflags_set(ip, XFS_IRECLAIM);
+	spin_unlock(&ip->i_flags_lock);
+	return 0;
+}
+
 /*
  * Inodes in different states need to be treated differently, and the return
  * value of xfs_iflush is not sufficient to get this right. The following table
@@ -789,23 +725,6 @@ xfs_reclaim_inode(
 {
 	int	error = 0;
 
-	/*
-	 * The radix tree lock here protects a thread in xfs_iget from racing
-	 * with us starting reclaim on the inode.  Once we have the
-	 * XFS_IRECLAIM flag set it will not touch us.
-	 */
-	spin_lock(&ip->i_flags_lock);
-	ASSERT_ALWAYS(__xfs_iflags_test(ip, XFS_IRECLAIMABLE));
-	if (__xfs_iflags_test(ip, XFS_IRECLAIM)) {
-		/* ignore as it is already under reclaim */
-		spin_unlock(&ip->i_flags_lock);
-		write_unlock(&pag->pag_ici_lock);
-		return 0;
-	}
-	__xfs_iflags_set(ip, XFS_IRECLAIM);
-	spin_unlock(&ip->i_flags_lock);
-	write_unlock(&pag->pag_ici_lock);
-
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	if (!xfs_iflock_nowait(ip)) {
 		if (!(sync_mode & SYNC_WAIT))
@@ -867,18 +786,161 @@ out:
 reclaim:
 	xfs_ifunlock(ip);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-	xfs_ireclaim(ip);
+
+	XFS_STATS_INC(xs_ig_reclaims);
+	/*
+	 * Remove the inode from the per-AG radix tree.
+	 *
+	 * Because radix_tree_delete won't complain even if the item was never
+	 * added to the tree assert that it's been there before to catch
+	 * problems with the inode life time early on.
+	 */
+	write_lock(&pag->pag_ici_lock);
+	if (!radix_tree_delete(&pag->pag_ici_root,
+				XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino)))
+		ASSERT(0);
+	__xfs_inode_clear_reclaim(pag, ip);
+	write_unlock(&pag->pag_ici_lock);
+
+	/*
+	 * Here we do an (almost) spurious inode lock in order to coordinate
+	 * with inode cache radix tree lookups.  This is because the lookup
+	 * can reference the inodes in the cache without taking references.
+	 *
+	 * We make that OK here by ensuring that we wait until the inode is
+	 * unlocked after the lookup before we go ahead and free it.  We get
+	 * both the ilock and the iolock because the code may need to drop the
+	 * ilock one but will still hold the iolock.
+	 */
+	xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_qm_dqdetach(ip);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+
+	xfs_inode_free(ip);
 	return error;
 
 }
 
+/*
+ * Walk the AGs and reclaim the inodes in them. Even if the filesystem is
+ * corrupted, we still want to try to reclaim all the inodes. If we don't,
+ * then a shut down during filesystem unmount reclaim walk leak all the
+ * unreclaimed inodes.
+ */
+int
+xfs_reclaim_inodes_ag(
+	struct xfs_mount	*mp,
+	int			flags,
+	int			*nr_to_scan)
+{
+	struct xfs_perag	*pag;
+	int			error = 0;
+	int			last_error = 0;
+	xfs_agnumber_t		ag;
+	int			trylock = flags & SYNC_TRYLOCK;
+	int			skipped;
+
+restart:
+	ag = 0;
+	skipped = 0;
+	while ((pag = xfs_perag_get_tag(mp, ag, XFS_ICI_RECLAIM_TAG))) {
+		unsigned long	first_index = 0;
+		int		done = 0;
+		int		nr_found = 0;
+
+		ag = pag->pag_agno + 1;
+
+		if (trylock) {
+			if (!mutex_trylock(&pag->pag_ici_reclaim_lock)) {
+				skipped++;
+				continue;
+			}
+			first_index = pag->pag_ici_reclaim_cursor;
+		} else
+			mutex_lock(&pag->pag_ici_reclaim_lock);
+
+		do {
+			struct xfs_inode *batch[XFS_LOOKUP_BATCH];
+			int	i;
+
+			write_lock(&pag->pag_ici_lock);
+			nr_found = radix_tree_gang_lookup_tag(
+					&pag->pag_ici_root,
+					(void **)batch, first_index,
+					XFS_LOOKUP_BATCH,
+					XFS_ICI_RECLAIM_TAG);
+			if (!nr_found) {
+				write_unlock(&pag->pag_ici_lock);
+				break;
+			}
+
+			/*
+			 * Grab the inodes before we drop the lock. if we found
+			 * nothing, nr == 0 and the loop will be skipped.
+			 */
+			for (i = 0; i < nr_found; i++) {
+				struct xfs_inode *ip = batch[i];
+
+				if (done || xfs_reclaim_inode_grab(ip, flags))
+					batch[i] = NULL;
+
+				/*
+				 * Update the index for the next lookup. Catch
+				 * overflows into the next AG range which can
+				 * occur if we have inodes in the last block of
+				 * the AG and we are currently pointing to the
+				 * last inode.
+				 */
+				first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1);
+				if (first_index < XFS_INO_TO_AGINO(mp, ip->i_ino))
+					done = 1;
+			}
+
+			/* unlock now we've grabbed the inodes. */
+			write_unlock(&pag->pag_ici_lock);
+
+			for (i = 0; i < nr_found; i++) {
+				if (!batch[i])
+					continue;
+				error = xfs_reclaim_inode(batch[i], pag, flags);
+				if (error && last_error != EFSCORRUPTED)
+					last_error = error;
+			}
+
+			*nr_to_scan -= XFS_LOOKUP_BATCH;
+
+		} while (nr_found && !done && *nr_to_scan > 0);
+
+		if (trylock && !done)
+			pag->pag_ici_reclaim_cursor = first_index;
+		else
+			pag->pag_ici_reclaim_cursor = 0;
+		mutex_unlock(&pag->pag_ici_reclaim_lock);
+		xfs_perag_put(pag);
+	}
+
+	/*
+	 * if we skipped any AG, and we still have scan count remaining, do
+	 * another pass this time using blocking reclaim semantics (i.e
+	 * waiting on the reclaim locks and ignoring the reclaim cursors). This
+	 * ensure that when we get more reclaimers than AGs we block rather
+	 * than spin trying to execute reclaim.
+	 */
+	if (trylock && skipped && *nr_to_scan > 0) {
+		trylock = 0;
+		goto restart;
+	}
+	return XFS_ERROR(last_error);
+}
+
 int
 xfs_reclaim_inodes(
 	xfs_mount_t	*mp,
 	int		mode)
 {
-	return xfs_inode_ag_iterator(mp, xfs_reclaim_inode, mode,
-					XFS_ICI_RECLAIM_TAG, 1, NULL);
+	int		nr_to_scan = INT_MAX;
+
+	return xfs_reclaim_inodes_ag(mp, mode, &nr_to_scan);
 }
 
 /*
@@ -900,17 +962,16 @@ xfs_reclaim_inode_shrink(
 		if (!(gfp_mask & __GFP_FS))
 			return -1;
 
-		xfs_inode_ag_iterator(mp, xfs_reclaim_inode, 0,
-					XFS_ICI_RECLAIM_TAG, 1, &nr_to_scan);
-		/* if we don't exhaust the scan, don't bother coming back */
+		xfs_reclaim_inodes_ag(mp, SYNC_TRYLOCK, &nr_to_scan);
+		/* terminate if we don't exhaust the scan */
 		if (nr_to_scan > 0)
 			return -1;
        }
 
 	reclaimable = 0;
 	ag = 0;
-	while ((pag = xfs_inode_ag_iter_next_pag(mp, &ag,
-					XFS_ICI_RECLAIM_TAG))) {
+	while ((pag = xfs_perag_get_tag(mp, ag, XFS_ICI_RECLAIM_TAG))) {
+		ag = pag->pag_agno + 1;
 		reclaimable += pag->pag_ici_reclaimable;
 		xfs_perag_put(pag);
 	}
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index e28139aaa4aa..32ba6628290c 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -35,9 +35,6 @@ typedef struct xfs_sync_work {
 int xfs_syncd_init(struct xfs_mount *mp);
 void xfs_syncd_stop(struct xfs_mount *mp);
 
-int xfs_sync_attr(struct xfs_mount *mp, int flags);
-int xfs_sync_data(struct xfs_mount *mp, int flags);
-
 int xfs_quiesce_data(struct xfs_mount *mp);
 void xfs_quiesce_attr(struct xfs_mount *mp);
 
@@ -50,10 +47,10 @@ void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
 void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
 				struct xfs_inode *ip);
 
-int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag);
+int xfs_sync_inode_grab(struct xfs_inode *ip);
 int xfs_inode_ag_iterator(struct xfs_mount *mp,
 	int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
-	int flags, int tag, int write_lock, int *nr_to_scan);
+	int flags);
 
 void xfs_inode_shrinker_register(struct xfs_mount *mp);
 void xfs_inode_shrinker_unregister(struct xfs_mount *mp);
diff --git a/fs/xfs/linux-2.6/xfs_trace.c b/fs/xfs/linux-2.6/xfs_trace.c
index d12be8470cba..88d25d4aa56e 100644
--- a/fs/xfs/linux-2.6/xfs_trace.c
+++ b/fs/xfs/linux-2.6/xfs_trace.c
@@ -24,17 +24,13 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index 302820690904..acef2e98c594 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -124,7 +124,7 @@ DEFINE_EVENT(xfs_perag_class, name,	\
 		 unsigned long caller_ip),					\
 	TP_ARGS(mp, agno, refcount, caller_ip))
 DEFINE_PERAG_REF_EVENT(xfs_perag_get);
-DEFINE_PERAG_REF_EVENT(xfs_perag_get_reclaim);
+DEFINE_PERAG_REF_EVENT(xfs_perag_get_tag);
 DEFINE_PERAG_REF_EVENT(xfs_perag_put);
 DEFINE_PERAG_REF_EVENT(xfs_perag_set_reclaim);
 DEFINE_PERAG_REF_EVENT(xfs_perag_clear_reclaim);
@@ -317,8 +317,6 @@ DEFINE_BUF_EVENT(xfs_buf_init);
 DEFINE_BUF_EVENT(xfs_buf_free);
 DEFINE_BUF_EVENT(xfs_buf_hold);
 DEFINE_BUF_EVENT(xfs_buf_rele);
-DEFINE_BUF_EVENT(xfs_buf_pin);
-DEFINE_BUF_EVENT(xfs_buf_unpin);
 DEFINE_BUF_EVENT(xfs_buf_iodone);
 DEFINE_BUF_EVENT(xfs_buf_iorequest);
 DEFINE_BUF_EVENT(xfs_buf_bawrite);
@@ -327,13 +325,12 @@ DEFINE_BUF_EVENT(xfs_buf_lock);
 DEFINE_BUF_EVENT(xfs_buf_lock_done);
 DEFINE_BUF_EVENT(xfs_buf_cond_lock);
 DEFINE_BUF_EVENT(xfs_buf_unlock);
-DEFINE_BUF_EVENT(xfs_buf_ordered_retry);
 DEFINE_BUF_EVENT(xfs_buf_iowait);
 DEFINE_BUF_EVENT(xfs_buf_iowait_done);
 DEFINE_BUF_EVENT(xfs_buf_delwri_queue);
 DEFINE_BUF_EVENT(xfs_buf_delwri_dequeue);
 DEFINE_BUF_EVENT(xfs_buf_delwri_split);
-DEFINE_BUF_EVENT(xfs_buf_get_noaddr);
+DEFINE_BUF_EVENT(xfs_buf_get_uncached);
 DEFINE_BUF_EVENT(xfs_bdstrat_shut);
 DEFINE_BUF_EVENT(xfs_buf_item_relse);
 DEFINE_BUF_EVENT(xfs_buf_item_iodone);
@@ -541,7 +538,7 @@ DEFINE_LOCK_EVENT(xfs_ilock_nowait);
 DEFINE_LOCK_EVENT(xfs_ilock_demote);
 DEFINE_LOCK_EVENT(xfs_iunlock);
 
-DECLARE_EVENT_CLASS(xfs_iget_class,
+DECLARE_EVENT_CLASS(xfs_inode_class,
 	TP_PROTO(struct xfs_inode *ip),
 	TP_ARGS(ip),
 	TP_STRUCT__entry(
@@ -557,16 +554,38 @@ DECLARE_EVENT_CLASS(xfs_iget_class,
 		  __entry->ino)
 )
 
-#define DEFINE_IGET_EVENT(name) \
-DEFINE_EVENT(xfs_iget_class, name, \
+#define DEFINE_INODE_EVENT(name) \
+DEFINE_EVENT(xfs_inode_class, name, \
 	TP_PROTO(struct xfs_inode *ip), \
 	TP_ARGS(ip))
-DEFINE_IGET_EVENT(xfs_iget_skip);
-DEFINE_IGET_EVENT(xfs_iget_reclaim);
-DEFINE_IGET_EVENT(xfs_iget_found);
-DEFINE_IGET_EVENT(xfs_iget_alloc);
-
-DECLARE_EVENT_CLASS(xfs_inode_class,
+DEFINE_INODE_EVENT(xfs_iget_skip);
+DEFINE_INODE_EVENT(xfs_iget_reclaim);
+DEFINE_INODE_EVENT(xfs_iget_reclaim_fail);
+DEFINE_INODE_EVENT(xfs_iget_hit);
+DEFINE_INODE_EVENT(xfs_iget_miss);
+
+DEFINE_INODE_EVENT(xfs_getattr);
+DEFINE_INODE_EVENT(xfs_setattr);
+DEFINE_INODE_EVENT(xfs_readlink);
+DEFINE_INODE_EVENT(xfs_alloc_file_space);
+DEFINE_INODE_EVENT(xfs_free_file_space);
+DEFINE_INODE_EVENT(xfs_readdir);
+#ifdef CONFIG_XFS_POSIX_ACL
+DEFINE_INODE_EVENT(xfs_check_acl);
+#endif
+DEFINE_INODE_EVENT(xfs_vm_bmap);
+DEFINE_INODE_EVENT(xfs_file_ioctl);
+DEFINE_INODE_EVENT(xfs_file_compat_ioctl);
+DEFINE_INODE_EVENT(xfs_ioctl_setattr);
+DEFINE_INODE_EVENT(xfs_file_fsync);
+DEFINE_INODE_EVENT(xfs_destroy_inode);
+DEFINE_INODE_EVENT(xfs_write_inode);
+DEFINE_INODE_EVENT(xfs_evict_inode);
+
+DEFINE_INODE_EVENT(xfs_dquot_dqalloc);
+DEFINE_INODE_EVENT(xfs_dquot_dqdetach);
+
+DECLARE_EVENT_CLASS(xfs_iref_class,
 	TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip),
 	TP_ARGS(ip, caller_ip),
 	TP_STRUCT__entry(
@@ -591,20 +610,71 @@ DECLARE_EVENT_CLASS(xfs_inode_class,
 		  (char *)__entry->caller_ip)
 )
 
-#define DEFINE_INODE_EVENT(name) \
-DEFINE_EVENT(xfs_inode_class, name, \
+#define DEFINE_IREF_EVENT(name) \
+DEFINE_EVENT(xfs_iref_class, name, \
 	TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \
 	TP_ARGS(ip, caller_ip))
-DEFINE_INODE_EVENT(xfs_ihold);
-DEFINE_INODE_EVENT(xfs_irele);
-DEFINE_INODE_EVENT(xfs_inode_pin);
-DEFINE_INODE_EVENT(xfs_inode_unpin);
-DEFINE_INODE_EVENT(xfs_inode_unpin_nowait);
+DEFINE_IREF_EVENT(xfs_ihold);
+DEFINE_IREF_EVENT(xfs_irele);
+DEFINE_IREF_EVENT(xfs_inode_pin);
+DEFINE_IREF_EVENT(xfs_inode_unpin);
+DEFINE_IREF_EVENT(xfs_inode_unpin_nowait);
+
+DECLARE_EVENT_CLASS(xfs_namespace_class,
+	TP_PROTO(struct xfs_inode *dp, struct xfs_name *name),
+	TP_ARGS(dp, name),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, dp_ino)
+		__dynamic_array(char, name, name->len)
+	),
+	TP_fast_assign(
+		__entry->dev = VFS_I(dp)->i_sb->s_dev;
+		__entry->dp_ino = dp->i_ino;
+		memcpy(__get_str(name), name->name, name->len);
+	),
+	TP_printk("dev %d:%d dp ino 0x%llx name %s",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->dp_ino,
+		  __get_str(name))
+)
 
-/* the old xfs_itrace_entry tracer - to be replaced by s.th. in the VFS */
-DEFINE_INODE_EVENT(xfs_inode);
-#define xfs_itrace_entry(ip)    \
-	trace_xfs_inode(ip, _THIS_IP_)
+#define DEFINE_NAMESPACE_EVENT(name) \
+DEFINE_EVENT(xfs_namespace_class, name, \
+	TP_PROTO(struct xfs_inode *dp, struct xfs_name *name), \
+	TP_ARGS(dp, name))
+DEFINE_NAMESPACE_EVENT(xfs_remove);
+DEFINE_NAMESPACE_EVENT(xfs_link);
+DEFINE_NAMESPACE_EVENT(xfs_lookup);
+DEFINE_NAMESPACE_EVENT(xfs_create);
+DEFINE_NAMESPACE_EVENT(xfs_symlink);
+
+TRACE_EVENT(xfs_rename,
+	TP_PROTO(struct xfs_inode *src_dp, struct xfs_inode *target_dp,
+		 struct xfs_name *src_name, struct xfs_name *target_name),
+	TP_ARGS(src_dp, target_dp, src_name, target_name),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, src_dp_ino)
+		__field(xfs_ino_t, target_dp_ino)
+		__dynamic_array(char, src_name, src_name->len)
+		__dynamic_array(char, target_name, target_name->len)
+	),
+	TP_fast_assign(
+		__entry->dev = VFS_I(src_dp)->i_sb->s_dev;
+		__entry->src_dp_ino = src_dp->i_ino;
+		__entry->target_dp_ino = target_dp->i_ino;
+		memcpy(__get_str(src_name), src_name->name, src_name->len);
+		memcpy(__get_str(target_name), target_name->name, target_name->len);
+	),
+	TP_printk("dev %d:%d src dp ino 0x%llx target dp ino 0x%llx"
+		  " src name %s target name %s",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->src_dp_ino,
+		  __entry->target_dp_ino,
+		  __get_str(src_name),
+		  __get_str(target_name))
+)
 
 DECLARE_EVENT_CLASS(xfs_dquot_class,
 	TP_PROTO(struct xfs_dquot *dqp),
@@ -684,9 +754,6 @@ DEFINE_DQUOT_EVENT(xfs_dqrele);
 DEFINE_DQUOT_EVENT(xfs_dqflush);
 DEFINE_DQUOT_EVENT(xfs_dqflush_force);
 DEFINE_DQUOT_EVENT(xfs_dqflush_done);
-/* not really iget events, but we re-use the format */
-DEFINE_IGET_EVENT(xfs_dquot_dqalloc);
-DEFINE_IGET_EVENT(xfs_dquot_dqdetach);
 
 DECLARE_EVENT_CLASS(xfs_loggrant_class,
 	TP_PROTO(struct log *log, struct xlog_ticket *tic),
@@ -834,33 +901,29 @@ DECLARE_EVENT_CLASS(xfs_page_class,
 		__field(loff_t, size)
 		__field(unsigned long, offset)
 		__field(int, delalloc)
-		__field(int, unmapped)
 		__field(int, unwritten)
 	),
 	TP_fast_assign(
-		int delalloc = -1, unmapped = -1, unwritten = -1;
+		int delalloc = -1, unwritten = -1;
 
 		if (page_has_buffers(page))
-			xfs_count_page_state(page, &delalloc,
-					     &unmapped, &unwritten);
+			xfs_count_page_state(page, &delalloc, &unwritten);
 		__entry->dev = inode->i_sb->s_dev;
 		__entry->ino = XFS_I(inode)->i_ino;
 		__entry->pgoff = page_offset(page);
 		__entry->size = i_size_read(inode);
 		__entry->offset = off;
 		__entry->delalloc = delalloc;
-		__entry->unmapped = unmapped;
 		__entry->unwritten = unwritten;
 	),
 	TP_printk("dev %d:%d ino 0x%llx pgoff 0x%lx size 0x%llx offset %lx "
-		  "delalloc %d unmapped %d unwritten %d",
+		  "delalloc %d unwritten %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __entry->pgoff,
 		  __entry->size,
 		  __entry->offset,
 		  __entry->delalloc,
-		  __entry->unmapped,
 		  __entry->unwritten)
 )
 
diff --git a/fs/xfs/linux-2.6/xfs_version.h b/fs/xfs/linux-2.6/xfs_version.h
deleted file mode 100644
index f8d279d7563a..000000000000
--- a/fs/xfs/linux-2.6/xfs_version.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2001-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_VERSION_H__
-#define __XFS_VERSION_H__
-
-/*
- * Dummy file that can contain a timestamp to put into the
- * XFS init string, to help users keep track of what they're
- * running
- */
-
-#define XFS_VERSION_STRING "SGI XFS"
-
-#endif /* __XFS_VERSION_H__ */
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 585e7633dfc7..faf8e1a83a12 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -23,25 +23,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
@@ -64,8 +54,6 @@
    flush lock - ditto.
 */
 
-STATIC void		xfs_qm_dqflush_done(xfs_buf_t *, xfs_dq_logitem_t *);
-
 #ifdef DEBUG
 xfs_buftarg_t *xfs_dqerror_target;
 int xfs_do_dqerror;
@@ -390,21 +378,14 @@ xfs_qm_dqalloc(
 		return (ESRCH);
 	}
 
-	/*
-	 * xfs_trans_commit normally decrements the vnode ref count
-	 * when it unlocks the inode. Since we want to keep the quota
-	 * inode around, we bump the vnode ref count now.
-	 */
-	IHOLD(quotip);
-
-	xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, quotip, XFS_ILOCK_EXCL);
 	nmaps = 1;
 	if ((error = xfs_bmapi(tp, quotip,
 			      offset_fsb, XFS_DQUOT_CLUSTER_SIZE_FSB,
 			      XFS_BMAPI_METADATA | XFS_BMAPI_WRITE,
 			      &firstblock,
 			      XFS_QM_DQALLOC_SPACE_RES(mp),
-			      &map, &nmaps, &flist, NULL))) {
+			      &map, &nmaps, &flist))) {
 		goto error0;
 	}
 	ASSERT(map.br_blockcount == XFS_DQUOT_CLUSTER_SIZE_FSB);
@@ -482,87 +463,68 @@ xfs_qm_dqtobp(
 	uint			flags)
 {
 	xfs_bmbt_irec_t map;
-	int		nmaps, error;
+	int		nmaps = 1, error;
 	xfs_buf_t	*bp;
-	xfs_inode_t	*quotip;
-	xfs_mount_t	*mp;
+	xfs_inode_t	*quotip = XFS_DQ_TO_QIP(dqp);
+	xfs_mount_t	*mp = dqp->q_mount;
 	xfs_disk_dquot_t *ddq;
-	xfs_dqid_t	id;
-	boolean_t	newdquot;
+	xfs_dqid_t	id = be32_to_cpu(dqp->q_core.d_id);
 	xfs_trans_t	*tp = (tpp ? *tpp : NULL);
 
-	mp = dqp->q_mount;
-	id = be32_to_cpu(dqp->q_core.d_id);
-	nmaps = 1;
-	newdquot = B_FALSE;
+	dqp->q_fileoffset = (xfs_fileoff_t)id / mp->m_quotainfo->qi_dqperchunk;
 
-	/*
-	 * If we don't know where the dquot lives, find out.
-	 */
-	if (dqp->q_blkno == (xfs_daddr_t) 0) {
-		/* We use the id as an index */
-		dqp->q_fileoffset = (xfs_fileoff_t)id /
-					mp->m_quotainfo->qi_dqperchunk;
-		nmaps = 1;
-		quotip = XFS_DQ_TO_QIP(dqp);
-		xfs_ilock(quotip, XFS_ILOCK_SHARED);
+	xfs_ilock(quotip, XFS_ILOCK_SHARED);
+	if (XFS_IS_THIS_QUOTA_OFF(dqp)) {
 		/*
-		 * Return if this type of quotas is turned off while we didn't
-		 * have an inode lock
+		 * Return if this type of quotas is turned off while we
+		 * didn't have the quota inode lock.
 		 */
-		if (XFS_IS_THIS_QUOTA_OFF(dqp)) {
-			xfs_iunlock(quotip, XFS_ILOCK_SHARED);
-			return (ESRCH);
-		}
+		xfs_iunlock(quotip, XFS_ILOCK_SHARED);
+		return ESRCH;
+	}
+
+	/*
+	 * Find the block map; no allocations yet
+	 */
+	error = xfs_bmapi(NULL, quotip, dqp->q_fileoffset,
+			  XFS_DQUOT_CLUSTER_SIZE_FSB, XFS_BMAPI_METADATA,
+			  NULL, 0, &map, &nmaps, NULL);
+
+	xfs_iunlock(quotip, XFS_ILOCK_SHARED);
+	if (error)
+		return error;
+
+	ASSERT(nmaps == 1);
+	ASSERT(map.br_blockcount == 1);
+
+	/*
+	 * Offset of dquot in the (fixed sized) dquot chunk.
+	 */
+	dqp->q_bufoffset = (id % mp->m_quotainfo->qi_dqperchunk) *
+		sizeof(xfs_dqblk_t);
+
+	ASSERT(map.br_startblock != DELAYSTARTBLOCK);
+	if (map.br_startblock == HOLESTARTBLOCK) {
 		/*
-		 * Find the block map; no allocations yet
+		 * We don't allocate unless we're asked to
 		 */
-		error = xfs_bmapi(NULL, quotip, dqp->q_fileoffset,
-				  XFS_DQUOT_CLUSTER_SIZE_FSB,
-				  XFS_BMAPI_METADATA,
-				  NULL, 0, &map, &nmaps, NULL, NULL);
+		if (!(flags & XFS_QMOPT_DQALLOC))
+			return ENOENT;
 
-		xfs_iunlock(quotip, XFS_ILOCK_SHARED);
+		ASSERT(tp);
+		error = xfs_qm_dqalloc(tpp, mp, dqp, quotip,
+					dqp->q_fileoffset, &bp);
 		if (error)
-			return (error);
-		ASSERT(nmaps == 1);
-		ASSERT(map.br_blockcount == 1);
+			return error;
+		tp = *tpp;
+	} else {
+		trace_xfs_dqtobp_read(dqp);
 
 		/*
-		 * offset of dquot in the (fixed sized) dquot chunk.
+		 * store the blkno etc so that we don't have to do the
+		 * mapping all the time
 		 */
-		dqp->q_bufoffset = (id % mp->m_quotainfo->qi_dqperchunk) *
-			sizeof(xfs_dqblk_t);
-		if (map.br_startblock == HOLESTARTBLOCK) {
-			/*
-			 * We don't allocate unless we're asked to
-			 */
-			if (!(flags & XFS_QMOPT_DQALLOC))
-				return (ENOENT);
-
-			ASSERT(tp);
-			if ((error = xfs_qm_dqalloc(tpp, mp, dqp, quotip,
-						dqp->q_fileoffset, &bp)))
-				return (error);
-			tp = *tpp;
-			newdquot = B_TRUE;
-		} else {
-			/*
-			 * store the blkno etc so that we don't have to do the
-			 * mapping all the time
-			 */
-			dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock);
-		}
-	}
-	ASSERT(dqp->q_blkno != DELAYSTARTBLOCK);
-	ASSERT(dqp->q_blkno != HOLESTARTBLOCK);
-
-	/*
-	 * Read in the buffer, unless we've just done the allocation
-	 * (in which case we already have the buf).
-	 */
-	if (!newdquot) {
-		trace_xfs_dqtobp_read(dqp);
+		dqp->q_blkno = XFS_FSB_TO_DADDR(mp, map.br_startblock);
 
 		error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
 					   dqp->q_blkno,
@@ -571,13 +533,14 @@ xfs_qm_dqtobp(
 		if (error || !bp)
 			return XFS_ERROR(error);
 	}
+
 	ASSERT(XFS_BUF_ISBUSY(bp));
 	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
 
 	/*
 	 * calculate the location of the dquot inside the buffer.
 	 */
-	ddq = (xfs_disk_dquot_t *)((char *)XFS_BUF_PTR(bp) + dqp->q_bufoffset);
+	ddq = (struct xfs_disk_dquot *)(XFS_BUF_PTR(bp) + dqp->q_bufoffset);
 
 	/*
 	 * A simple sanity check in case we got a corrupted dquot...
@@ -1141,6 +1104,46 @@ xfs_qm_dqrele(
 	xfs_qm_dqput(dqp);
 }
 
+/*
+ * This is the dquot flushing I/O completion routine.  It is called
+ * from interrupt level when the buffer containing the dquot is
+ * flushed to disk.  It is responsible for removing the dquot logitem
+ * from the AIL if it has not been re-logged, and unlocking the dquot's
+ * flush lock. This behavior is very similar to that of inodes..
+ */
+STATIC void
+xfs_qm_dqflush_done(
+	struct xfs_buf		*bp,
+	struct xfs_log_item	*lip)
+{
+	xfs_dq_logitem_t	*qip = (struct xfs_dq_logitem *)lip;
+	xfs_dquot_t		*dqp = qip->qli_dquot;
+	struct xfs_ail		*ailp = lip->li_ailp;
+
+	/*
+	 * We only want to pull the item from the AIL if its
+	 * location in the log has not changed since we started the flush.
+	 * Thus, we only bother if the dquot's lsn has
+	 * not changed. First we check the lsn outside the lock
+	 * since it's cheaper, and then we recheck while
+	 * holding the lock before removing the dquot from the AIL.
+	 */
+	if ((lip->li_flags & XFS_LI_IN_AIL) &&
+	    lip->li_lsn == qip->qli_flush_lsn) {
+
+		/* xfs_trans_ail_delete() drops the AIL lock. */
+		spin_lock(&ailp->xa_lock);
+		if (lip->li_lsn == qip->qli_flush_lsn)
+			xfs_trans_ail_delete(ailp, lip);
+		else
+			spin_unlock(&ailp->xa_lock);
+	}
+
+	/*
+	 * Release the dq's flush lock since we're done with it.
+	 */
+	xfs_dqfunlock(dqp);
+}
 
 /*
  * Write a modified dquot to disk.
@@ -1155,18 +1158,18 @@ xfs_qm_dqflush(
 	xfs_dquot_t		*dqp,
 	uint			flags)
 {
-	xfs_mount_t		*mp;
-	xfs_buf_t		*bp;
-	xfs_disk_dquot_t	*ddqp;
+	struct xfs_mount	*mp = dqp->q_mount;
+	struct xfs_buf		*bp;
+	struct xfs_disk_dquot	*ddqp;
 	int			error;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 	ASSERT(!completion_done(&dqp->q_flush));
+
 	trace_xfs_dqflush(dqp);
 
 	/*
-	 * If not dirty, or it's pinned and we are not supposed to
-	 * block, nada.
+	 * If not dirty, or it's pinned and we are not supposed to block, nada.
 	 */
 	if (!XFS_DQ_IS_DIRTY(dqp) ||
 	    (!(flags & SYNC_WAIT) && atomic_read(&dqp->q_pincount) > 0)) {
@@ -1180,40 +1183,46 @@ xfs_qm_dqflush(
 	 * down forcibly. If that's the case we must not write this dquot
 	 * to disk, because the log record didn't make it to disk!
 	 */
-	if (XFS_FORCED_SHUTDOWN(dqp->q_mount)) {
-		dqp->dq_flags &= ~(XFS_DQ_DIRTY);
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		dqp->dq_flags &= ~XFS_DQ_DIRTY;
 		xfs_dqfunlock(dqp);
 		return XFS_ERROR(EIO);
 	}
 
 	/*
 	 * Get the buffer containing the on-disk dquot
-	 * We don't need a transaction envelope because we know that the
-	 * the ondisk-dquot has already been allocated for.
 	 */
-	if ((error = xfs_qm_dqtobp(NULL, dqp, &ddqp, &bp, XFS_QMOPT_DOWARN))) {
+	error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dqp->q_blkno,
+				   mp->m_quotainfo->qi_dqchunklen, 0, &bp);
+	if (error) {
 		ASSERT(error != ENOENT);
-		/*
-		 * Quotas could have gotten turned off (ESRCH)
-		 */
 		xfs_dqfunlock(dqp);
-		return (error);
+		return error;
 	}
 
-	if (xfs_qm_dqcheck(&dqp->q_core, be32_to_cpu(ddqp->d_id),
-			   0, XFS_QMOPT_DOWARN, "dqflush (incore copy)")) {
-		xfs_force_shutdown(dqp->q_mount, SHUTDOWN_CORRUPT_INCORE);
+	/*
+	 * Calculate the location of the dquot inside the buffer.
+	 */
+	ddqp = (struct xfs_disk_dquot *)(XFS_BUF_PTR(bp) + dqp->q_bufoffset);
+
+	/*
+	 * A simple sanity check in case we got a corrupted dquot..
+	 */
+	if (xfs_qm_dqcheck(&dqp->q_core, be32_to_cpu(ddqp->d_id), 0,
+			   XFS_QMOPT_DOWARN, "dqflush (incore copy)")) {
+		xfs_buf_relse(bp);
+		xfs_dqfunlock(dqp);
+		xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
 		return XFS_ERROR(EIO);
 	}
 
 	/* This is the only portion of data that needs to persist */
-	memcpy(ddqp, &(dqp->q_core), sizeof(xfs_disk_dquot_t));
+	memcpy(ddqp, &dqp->q_core, sizeof(xfs_disk_dquot_t));
 
 	/*
 	 * Clear the dirty field and remember the flush lsn for later use.
 	 */
-	dqp->dq_flags &= ~(XFS_DQ_DIRTY);
-	mp = dqp->q_mount;
+	dqp->dq_flags &= ~XFS_DQ_DIRTY;
 
 	xfs_trans_ail_copy_lsn(mp->m_ail, &dqp->q_logitem.qli_flush_lsn,
 					&dqp->q_logitem.qli_item.li_lsn);
@@ -1222,8 +1231,9 @@ xfs_qm_dqflush(
 	 * Attach an iodone routine so that we can remove this dquot from the
 	 * AIL and release the flush lock once the dquot is synced to disk.
 	 */
-	xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t *, xfs_log_item_t *))
-			      xfs_qm_dqflush_done, &(dqp->q_logitem.qli_item));
+	xfs_buf_attach_iodone(bp, xfs_qm_dqflush_done,
+				  &dqp->q_logitem.qli_item);
+
 	/*
 	 * If the buffer is pinned then push on the log so we won't
 	 * get stuck waiting in the write for too long.
@@ -1247,50 +1257,6 @@ xfs_qm_dqflush(
 
 }
 
-/*
- * This is the dquot flushing I/O completion routine.  It is called
- * from interrupt level when the buffer containing the dquot is
- * flushed to disk.  It is responsible for removing the dquot logitem
- * from the AIL if it has not been re-logged, and unlocking the dquot's
- * flush lock. This behavior is very similar to that of inodes..
- */
-/*ARGSUSED*/
-STATIC void
-xfs_qm_dqflush_done(
-	xfs_buf_t		*bp,
-	xfs_dq_logitem_t	*qip)
-{
-	xfs_dquot_t		*dqp;
-	struct xfs_ail		*ailp;
-
-	dqp = qip->qli_dquot;
-	ailp = qip->qli_item.li_ailp;
-
-	/*
-	 * We only want to pull the item from the AIL if its
-	 * location in the log has not changed since we started the flush.
-	 * Thus, we only bother if the dquot's lsn has
-	 * not changed. First we check the lsn outside the lock
-	 * since it's cheaper, and then we recheck while
-	 * holding the lock before removing the dquot from the AIL.
-	 */
-	if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
-	    qip->qli_item.li_lsn == qip->qli_flush_lsn) {
-
-		/* xfs_trans_ail_delete() drops the AIL lock. */
-		spin_lock(&ailp->xa_lock);
-		if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
-			xfs_trans_ail_delete(ailp, (xfs_log_item_t*)qip);
-		else
-			spin_unlock(&ailp->xa_lock);
-	}
-
-	/*
-	 * Release the dq's flush lock since we're done with it.
-	 */
-	xfs_dqfunlock(dqp);
-}
-
 int
 xfs_qm_dqlock_nowait(
 	xfs_dquot_t *dqp)
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 8d89a24ae324..2a1f3dc10a02 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -23,42 +23,36 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
 #include "xfs_qm.h"
 
+static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
+{
+	return container_of(lip, struct xfs_dq_logitem, qli_item);
+}
+
 /*
  * returns the number of iovecs needed to log the given dquot item.
  */
-/* ARGSUSED */
 STATIC uint
 xfs_qm_dquot_logitem_size(
-	xfs_dq_logitem_t	*logitem)
+	struct xfs_log_item	*lip)
 {
 	/*
 	 * we need only two iovecs, one for the format, one for the real thing
 	 */
-	return (2);
+	return 2;
 }
 
 /*
@@ -66,22 +60,21 @@ xfs_qm_dquot_logitem_size(
  */
 STATIC void
 xfs_qm_dquot_logitem_format(
-	xfs_dq_logitem_t	*logitem,
-	xfs_log_iovec_t		*logvec)
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*logvec)
 {
-	ASSERT(logitem);
-	ASSERT(logitem->qli_dquot);
+	struct xfs_dq_logitem	*qlip = DQUOT_ITEM(lip);
 
-	logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
+	logvec->i_addr = &qlip->qli_format;
 	logvec->i_len  = sizeof(xfs_dq_logformat_t);
 	logvec->i_type = XLOG_REG_TYPE_QFORMAT;
 	logvec++;
-	logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
+	logvec->i_addr = &qlip->qli_dquot->q_core;
 	logvec->i_len  = sizeof(xfs_disk_dquot_t);
 	logvec->i_type = XLOG_REG_TYPE_DQUOT;
 
-	ASSERT(2 == logitem->qli_item.li_desc->lid_size);
-	logitem->qli_format.qlf_size = 2;
+	ASSERT(2 == lip->li_desc->lid_size);
+	qlip->qli_format.qlf_size = 2;
 
 }
 
@@ -90,9 +83,9 @@ xfs_qm_dquot_logitem_format(
  */
 STATIC void
 xfs_qm_dquot_logitem_pin(
-	xfs_dq_logitem_t *logitem)
+	struct xfs_log_item	*lip)
 {
-	xfs_dquot_t *dqp = logitem->qli_dquot;
+	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 	atomic_inc(&dqp->q_pincount);
@@ -104,27 +97,18 @@ xfs_qm_dquot_logitem_pin(
  * dquot must have been previously pinned with a call to
  * xfs_qm_dquot_logitem_pin().
  */
-/* ARGSUSED */
 STATIC void
 xfs_qm_dquot_logitem_unpin(
-	xfs_dq_logitem_t *logitem)
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	xfs_dquot_t *dqp = logitem->qli_dquot;
+	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
 
 	ASSERT(atomic_read(&dqp->q_pincount) > 0);
 	if (atomic_dec_and_test(&dqp->q_pincount))
 		wake_up(&dqp->q_pinwait);
 }
 
-/* ARGSUSED */
-STATIC void
-xfs_qm_dquot_logitem_unpin_remove(
-	xfs_dq_logitem_t *logitem,
-	xfs_trans_t	 *tp)
-{
-	xfs_qm_dquot_logitem_unpin(logitem);
-}
-
 /*
  * Given the logitem, this writes the corresponding dquot entry to disk
  * asynchronously. This is called with the dquot entry securely locked;
@@ -133,12 +117,10 @@ xfs_qm_dquot_logitem_unpin_remove(
  */
 STATIC void
 xfs_qm_dquot_logitem_push(
-	xfs_dq_logitem_t	*logitem)
+	struct xfs_log_item	*lip)
 {
-	xfs_dquot_t	*dqp;
-	int		error;
-
-	dqp = logitem->qli_dquot;
+	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
+	int			error;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 	ASSERT(!completion_done(&dqp->q_flush));
@@ -160,27 +142,25 @@ xfs_qm_dquot_logitem_push(
 	xfs_dqunlock(dqp);
 }
 
-/*ARGSUSED*/
 STATIC xfs_lsn_t
 xfs_qm_dquot_logitem_committed(
-	xfs_dq_logitem_t	*l,
+	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn)
 {
 	/*
 	 * We always re-log the entire dquot when it becomes dirty,
 	 * so, the latest copy _is_ the only one that matters.
 	 */
-	return (lsn);
+	return lsn;
 }
 
-
 /*
  * This is called to wait for the given dquot to be unpinned.
  * Most of these pin/unpin routines are plagiarized from inode code.
  */
 void
 xfs_qm_dqunpin_wait(
-	xfs_dquot_t	*dqp)
+	struct xfs_dquot	*dqp)
 {
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 	if (atomic_read(&dqp->q_pincount) == 0)
@@ -206,13 +186,12 @@ xfs_qm_dqunpin_wait(
  */
 STATIC void
 xfs_qm_dquot_logitem_pushbuf(
-	xfs_dq_logitem_t    *qip)
+	struct xfs_log_item	*lip)
 {
-	xfs_dquot_t	*dqp;
-	xfs_mount_t	*mp;
-	xfs_buf_t	*bp;
+	struct xfs_dq_logitem	*qlip = DQUOT_ITEM(lip);
+	struct xfs_dquot	*dqp = qlip->qli_dquot;
+	struct xfs_buf		*bp;
 
-	dqp = qip->qli_dquot;
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 
 	/*
@@ -220,22 +199,20 @@ xfs_qm_dquot_logitem_pushbuf(
 	 * inode flush completed and the inode was taken off the AIL.
 	 * So, just get out.
 	 */
-	if (completion_done(&dqp->q_flush)  ||
-	    ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+	if (completion_done(&dqp->q_flush) ||
+	    !(lip->li_flags & XFS_LI_IN_AIL)) {
 		xfs_dqunlock(dqp);
 		return;
 	}
-	mp = dqp->q_mount;
-	bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
-			mp->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
+
+	bp = xfs_incore(dqp->q_mount->m_ddev_targp, qlip->qli_format.qlf_blkno,
+			dqp->q_mount->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK);
 	xfs_dqunlock(dqp);
 	if (!bp)
 		return;
 	if (XFS_BUF_ISDELAYWRITE(bp))
 		xfs_buf_delwri_promote(bp);
 	xfs_buf_relse(bp);
-	return;
-
 }
 
 /*
@@ -250,15 +227,14 @@ xfs_qm_dquot_logitem_pushbuf(
  */
 STATIC uint
 xfs_qm_dquot_logitem_trylock(
-	xfs_dq_logitem_t	*qip)
+	struct xfs_log_item	*lip)
 {
-	xfs_dquot_t		*dqp;
+	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
 
-	dqp = qip->qli_dquot;
 	if (atomic_read(&dqp->q_pincount) > 0)
 		return XFS_ITEM_PINNED;
 
-	if (! xfs_qm_dqlock_nowait(dqp))
+	if (!xfs_qm_dqlock_nowait(dqp))
 		return XFS_ITEM_LOCKED;
 
 	if (!xfs_dqflock_nowait(dqp)) {
@@ -269,11 +245,10 @@ xfs_qm_dquot_logitem_trylock(
 		return XFS_ITEM_PUSHBUF;
 	}
 
-	ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
+	ASSERT(lip->li_flags & XFS_LI_IN_AIL);
 	return XFS_ITEM_SUCCESS;
 }
 
-
 /*
  * Unlock the dquot associated with the log item.
  * Clear the fields of the dquot and dquot log item that
@@ -282,12 +257,10 @@ xfs_qm_dquot_logitem_trylock(
  */
 STATIC void
 xfs_qm_dquot_logitem_unlock(
-	xfs_dq_logitem_t    *ql)
+	struct xfs_log_item	*lip)
 {
-	xfs_dquot_t	*dqp;
+	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
 
-	ASSERT(ql != NULL);
-	dqp = ql->qli_dquot;
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 
 	/*
@@ -304,43 +277,32 @@ xfs_qm_dquot_logitem_unlock(
 	xfs_dqunlock(dqp);
 }
 
-
 /*
  * this needs to stamp an lsn into the dquot, I think.
  * rpc's that look at user dquot's would then have to
  * push on the dependency recorded in the dquot
  */
-/* ARGSUSED */
 STATIC void
 xfs_qm_dquot_logitem_committing(
-	xfs_dq_logitem_t	*l,
+	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn)
 {
-	return;
 }
 
-
 /*
  * This is the ops vector for dquots
  */
 static struct xfs_item_ops xfs_dquot_item_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_qm_dquot_logitem_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
-					xfs_qm_dquot_logitem_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))
-					xfs_qm_dquot_logitem_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_dquot_logitem_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_push,
-	.iop_pushbuf	= (void(*)(xfs_log_item_t*))
-					xfs_qm_dquot_logitem_pushbuf,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_dquot_logitem_committing
+	.iop_size	= xfs_qm_dquot_logitem_size,
+	.iop_format	= xfs_qm_dquot_logitem_format,
+	.iop_pin	= xfs_qm_dquot_logitem_pin,
+	.iop_unpin	= xfs_qm_dquot_logitem_unpin,
+	.iop_trylock	= xfs_qm_dquot_logitem_trylock,
+	.iop_unlock	= xfs_qm_dquot_logitem_unlock,
+	.iop_committed	= xfs_qm_dquot_logitem_committed,
+	.iop_push	= xfs_qm_dquot_logitem_push,
+	.iop_pushbuf	= xfs_qm_dquot_logitem_pushbuf,
+	.iop_committing = xfs_qm_dquot_logitem_committing
 };
 
 /*
@@ -350,10 +312,9 @@ static struct xfs_item_ops xfs_dquot_item_ops = {
  */
 void
 xfs_qm_dquot_logitem_init(
-	struct xfs_dquot *dqp)
+	struct xfs_dquot	*dqp)
 {
-	xfs_dq_logitem_t  *lp;
-	lp = &dqp->q_logitem;
+	struct xfs_dq_logitem	*lp = &dqp->q_logitem;
 
 	xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT,
 					&xfs_dquot_item_ops);
@@ -374,16 +335,22 @@ xfs_qm_dquot_logitem_init(
 
 /*------------------  QUOTAOFF LOG ITEMS  -------------------*/
 
+static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
+{
+	return container_of(lip, struct xfs_qoff_logitem, qql_item);
+}
+
+
 /*
  * This returns the number of iovecs needed to log the given quotaoff item.
  * We only need 1 iovec for an quotaoff item.  It just logs the
  * quotaoff_log_format structure.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_size(
+	struct xfs_log_item	*lip)
 {
-	return (1);
+	return 1;
 }
 
 /*
@@ -394,53 +361,46 @@ xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
  * slots in the quotaoff item have been filled.
  */
 STATIC void
-xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t	*qf,
-			   xfs_log_iovec_t	*log_vector)
+xfs_qm_qoff_logitem_format(
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*log_vector)
 {
-	ASSERT(qf->qql_format.qf_type == XFS_LI_QUOTAOFF);
+	struct xfs_qoff_logitem	*qflip = QOFF_ITEM(lip);
+
+	ASSERT(qflip->qql_format.qf_type == XFS_LI_QUOTAOFF);
 
-	log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
+	log_vector->i_addr = &qflip->qql_format;
 	log_vector->i_len = sizeof(xfs_qoff_logitem_t);
 	log_vector->i_type = XLOG_REG_TYPE_QUOTAOFF;
-	qf->qql_format.qf_size = 1;
+	qflip->qql_format.qf_size = 1;
 }
 
-
 /*
  * Pinning has no meaning for an quotaoff item, so just return.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_pin(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
-
 /*
  * Since pinning has no meaning for an quotaoff item, unpinning does
  * not either.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_unpin(
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	return;
-}
-
-/*ARGSUSED*/
-STATIC void
-xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp)
-{
-	return;
 }
 
 /*
  * Quotaoff items have no locking, so just return success.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_trylock(
+	struct xfs_log_item	*lip)
 {
 	return XFS_ITEM_LOCKED;
 }
@@ -449,53 +409,51 @@ xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
  * Quotaoff items have no locking or pushing, so return failure
  * so that the caller doesn't bother with us.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_qm_qoff_logitem_unlock(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_unlock(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
 /*
  * The quotaoff-start-item is logged only once and cannot be moved in the log,
  * so simply return the lsn at which it's been logged.
  */
-/*ARGSUSED*/
 STATIC xfs_lsn_t
-xfs_qm_qoff_logitem_committed(xfs_qoff_logitem_t *qf, xfs_lsn_t lsn)
+xfs_qm_qoff_logitem_committed(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
-	return (lsn);
+	return lsn;
 }
 
 /*
  * There isn't much you can do to push on an quotaoff item.  It is simply
  * stuck waiting for the log to be flushed to disk.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_qm_qoff_logitem_push(xfs_qoff_logitem_t *qf)
+xfs_qm_qoff_logitem_push(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
 
-/*ARGSUSED*/
 STATIC xfs_lsn_t
 xfs_qm_qoffend_logitem_committed(
-	xfs_qoff_logitem_t *qfe,
-	xfs_lsn_t lsn)
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
-	xfs_qoff_logitem_t	*qfs;
-	struct xfs_ail		*ailp;
+	struct xfs_qoff_logitem	*qfe = QOFF_ITEM(lip);
+	struct xfs_qoff_logitem	*qfs = qfe->qql_start_lip;
+	struct xfs_ail		*ailp = qfs->qql_item.li_ailp;
 
-	qfs = qfe->qql_start_lip;
-	ailp = qfs->qql_item.li_ailp;
-	spin_lock(&ailp->xa_lock);
 	/*
 	 * Delete the qoff-start logitem from the AIL.
 	 * xfs_trans_ail_delete() drops the AIL lock.
 	 */
+	spin_lock(&ailp->xa_lock);
 	xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs);
+
 	kmem_free(qfs);
 	kmem_free(qfe);
 	return (xfs_lsn_t)-1;
@@ -515,71 +473,52 @@ xfs_qm_qoffend_logitem_committed(
  * (truly makes the quotaoff irrevocable).  If we do something else,
  * then maybe we don't need two.
  */
-/* ARGSUSED */
-STATIC void
-xfs_qm_qoff_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
-{
-	return;
-}
-
-/* ARGSUSED */
 STATIC void
-xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
+xfs_qm_qoff_logitem_committing(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		commit_lsn)
 {
-	return;
 }
 
 static struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_qm_qoff_logitem_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
-					xfs_qm_qoff_logitem_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_qoffend_logitem_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
-	.iop_pushbuf	= NULL,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_qoffend_logitem_committing
+	.iop_size	= xfs_qm_qoff_logitem_size,
+	.iop_format	= xfs_qm_qoff_logitem_format,
+	.iop_pin	= xfs_qm_qoff_logitem_pin,
+	.iop_unpin	= xfs_qm_qoff_logitem_unpin,
+	.iop_trylock	= xfs_qm_qoff_logitem_trylock,
+	.iop_unlock	= xfs_qm_qoff_logitem_unlock,
+	.iop_committed	= xfs_qm_qoffend_logitem_committed,
+	.iop_push	= xfs_qm_qoff_logitem_push,
+	.iop_committing = xfs_qm_qoff_logitem_committing
 };
 
 /*
  * This is the ops vector shared by all quotaoff-start log items.
  */
 static struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_qm_qoff_logitem_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
-					xfs_qm_qoff_logitem_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_qoff_logitem_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
-	.iop_pushbuf	= NULL,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_qm_qoff_logitem_committing
+	.iop_size	= xfs_qm_qoff_logitem_size,
+	.iop_format	= xfs_qm_qoff_logitem_format,
+	.iop_pin	= xfs_qm_qoff_logitem_pin,
+	.iop_unpin	= xfs_qm_qoff_logitem_unpin,
+	.iop_trylock	= xfs_qm_qoff_logitem_trylock,
+	.iop_unlock	= xfs_qm_qoff_logitem_unlock,
+	.iop_committed	= xfs_qm_qoff_logitem_committed,
+	.iop_push	= xfs_qm_qoff_logitem_push,
+	.iop_committing = xfs_qm_qoff_logitem_committing
 };
 
 /*
  * Allocate and initialize an quotaoff item of the correct quota type(s).
  */
-xfs_qoff_logitem_t *
+struct xfs_qoff_logitem *
 xfs_qm_qoff_logitem_init(
-	struct xfs_mount *mp,
-	xfs_qoff_logitem_t *start,
-	uint flags)
+	struct xfs_mount	*mp,
+	struct xfs_qoff_logitem	*start,
+	uint			flags)
 {
-	xfs_qoff_logitem_t	*qf;
+	struct xfs_qoff_logitem	*qf;
 
-	qf = (xfs_qoff_logitem_t*) kmem_zalloc(sizeof(xfs_qoff_logitem_t), KM_SLEEP);
+	qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
 
 	xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
 			&xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
@@ -587,5 +526,5 @@ xfs_qm_qoff_logitem_init(
 	qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
 	qf->qql_format.qf_flags = flags;
 	qf->qql_start_lip = start;
-	return (qf);
+	return qf;
 }
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 67c018392d62..f8e854b4fde8 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -23,25 +23,18 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_bmap.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
@@ -62,8 +55,6 @@ uint		ndquot;
 kmem_zone_t	*qm_dqzone;
 kmem_zone_t	*qm_dqtrxzone;
 
-static cred_t	xfs_zerocr;
-
 STATIC void	xfs_qm_list_init(xfs_dqlist_t *, char *, int);
 STATIC void	xfs_qm_list_destroy(xfs_dqlist_t *);
 
@@ -844,7 +835,7 @@ xfs_qm_dqattach_locked(
 			xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP,
 						flags & XFS_QMOPT_DQALLOC,
 						ip->i_udquot, &ip->i_gdquot) :
-			xfs_qm_dqattach_one(ip, ip->i_d.di_projid, XFS_DQ_PROJ,
+			xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ,
 						flags & XFS_QMOPT_DQALLOC,
 						ip->i_udquot, &ip->i_gdquot);
 		/*
@@ -1206,87 +1197,6 @@ xfs_qm_list_destroy(
 	mutex_destroy(&(list->qh_lock));
 }
 
-
-/*
- * Stripped down version of dqattach. This doesn't attach, or even look at the
- * dquots attached to the inode. The rationale is that there won't be any
- * attached at the time this is called from quotacheck.
- */
-STATIC int
-xfs_qm_dqget_noattach(
-	xfs_inode_t	*ip,
-	xfs_dquot_t	**O_udqpp,
-	xfs_dquot_t	**O_gdqpp)
-{
-	int		error;
-	xfs_mount_t	*mp;
-	xfs_dquot_t	*udqp, *gdqp;
-
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-	mp = ip->i_mount;
-	udqp = NULL;
-	gdqp = NULL;
-
-	if (XFS_IS_UQUOTA_ON(mp)) {
-		ASSERT(ip->i_udquot == NULL);
-		/*
-		 * We want the dquot allocated if it doesn't exist.
-		 */
-		if ((error = xfs_qm_dqget(mp, ip, ip->i_d.di_uid, XFS_DQ_USER,
-					 XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN,
-					 &udqp))) {
-			/*
-			 * Shouldn't be able to turn off quotas here.
-			 */
-			ASSERT(error != ESRCH);
-			ASSERT(error != ENOENT);
-			return error;
-		}
-		ASSERT(udqp);
-	}
-
-	if (XFS_IS_OQUOTA_ON(mp)) {
-		ASSERT(ip->i_gdquot == NULL);
-		if (udqp)
-			xfs_dqunlock(udqp);
-		error = XFS_IS_GQUOTA_ON(mp) ?
-				xfs_qm_dqget(mp, ip,
-					     ip->i_d.di_gid, XFS_DQ_GROUP,
-					     XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
-					     &gdqp) :
-				xfs_qm_dqget(mp, ip,
-					     ip->i_d.di_projid, XFS_DQ_PROJ,
-					     XFS_QMOPT_DQALLOC|XFS_QMOPT_DOWARN,
-					     &gdqp);
-		if (error) {
-			if (udqp)
-				xfs_qm_dqrele(udqp);
-			ASSERT(error != ESRCH);
-			ASSERT(error != ENOENT);
-			return error;
-		}
-		ASSERT(gdqp);
-
-		/* Reacquire the locks in the right order */
-		if (udqp) {
-			if (! xfs_qm_dqlock_nowait(udqp)) {
-				xfs_dqunlock(gdqp);
-				xfs_dqlock(udqp);
-				xfs_dqlock(gdqp);
-			}
-		}
-	}
-
-	*O_udqpp = udqp;
-	*O_gdqpp = gdqp;
-
-#ifdef QUOTADEBUG
-	if (udqp) ASSERT(XFS_DQ_IS_LOCKED(udqp));
-	if (gdqp) ASSERT(XFS_DQ_IS_LOCKED(gdqp));
-#endif
-	return 0;
-}
-
 /*
  * Create an inode and return with a reference already taken, but unlocked
  * This is how we create quota inodes
@@ -1312,8 +1222,8 @@ xfs_qm_qino_alloc(
 		return error;
 	}
 
-	if ((error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0,
-				   &xfs_zerocr, 0, 1, ip, &committed))) {
+	error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, &committed);
+	if (error) {
 		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
 				 XFS_TRANS_ABORT);
 		return error;
@@ -1497,7 +1407,7 @@ xfs_qm_dqiterate(
 				  maxlblkcnt - lblkno,
 				  XFS_BMAPI_METADATA,
 				  NULL,
-				  0, map, &nmaps, NULL, NULL);
+				  0, map, &nmaps, NULL);
 		xfs_iunlock(qip, XFS_ILOCK_SHARED);
 		if (error)
 			break;
@@ -1523,7 +1433,7 @@ xfs_qm_dqiterate(
 				rablkcnt =  map[i+1].br_blockcount;
 				rablkno = map[i+1].br_startblock;
 				while (rablkcnt--) {
-					xfs_baread(mp->m_ddev_targp,
+					xfs_buf_readahead(mp->m_ddev_targp,
 					       XFS_FSB_TO_DADDR(mp, rablkno),
 					       mp->m_quotainfo->qi_dqchunklen);
 					rablkno++;
@@ -1553,18 +1463,34 @@ xfs_qm_dqiterate(
 
 /*
  * Called by dqusage_adjust in doing a quotacheck.
- * Given the inode, and a dquot (either USR or GRP, doesn't matter),
- * this updates its incore copy as well as the buffer copy. This is
- * so that once the quotacheck is done, we can just log all the buffers,
- * as opposed to logging numerous updates to individual dquots.
+ *
+ * Given the inode, and a dquot id this updates both the incore dqout as well
+ * as the buffer copy. This is so that once the quotacheck is done, we can
+ * just log all the buffers, as opposed to logging numerous updates to
+ * individual dquots.
  */
-STATIC void
+STATIC int
 xfs_qm_quotacheck_dqadjust(
-	xfs_dquot_t		*dqp,
+	struct xfs_inode	*ip,
+	xfs_dqid_t		id,
+	uint			type,
 	xfs_qcnt_t		nblks,
 	xfs_qcnt_t		rtblks)
 {
-	ASSERT(XFS_DQ_IS_LOCKED(dqp));
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_dquot	*dqp;
+	int			error;
+
+	error = xfs_qm_dqget(mp, ip, id, type,
+			     XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp);
+	if (error) {
+		/*
+		 * Shouldn't be able to turn off quotas here.
+		 */
+		ASSERT(error != ESRCH);
+		ASSERT(error != ENOENT);
+		return error;
+	}
 
 	trace_xfs_dqadjust(dqp);
 
@@ -1589,11 +1515,13 @@ xfs_qm_quotacheck_dqadjust(
 	 * There are no timers for the default values set in the root dquot.
 	 */
 	if (dqp->q_core.d_id) {
-		xfs_qm_adjust_dqlimits(dqp->q_mount, &dqp->q_core);
-		xfs_qm_adjust_dqtimers(dqp->q_mount, &dqp->q_core);
+		xfs_qm_adjust_dqlimits(mp, &dqp->q_core);
+		xfs_qm_adjust_dqtimers(mp, &dqp->q_core);
 	}
 
 	dqp->dq_flags |= XFS_DQ_DIRTY;
+	xfs_qm_dqput(dqp);
+	return 0;
 }
 
 STATIC int
@@ -1636,8 +1564,7 @@ xfs_qm_dqusage_adjust(
 	int		*res)		/* result code value */
 {
 	xfs_inode_t	*ip;
-	xfs_dquot_t	*udqp, *gdqp;
-	xfs_qcnt_t	nblks, rtblks;
+	xfs_qcnt_t	nblks, rtblks = 0;
 	int		error;
 
 	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
@@ -1657,49 +1584,24 @@ xfs_qm_dqusage_adjust(
 	 * the case in all other instances. It's OK that we do this because
 	 * quotacheck is done only at mount time.
 	 */
-	if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip))) {
+	error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip);
+	if (error) {
 		*res = BULKSTAT_RV_NOTHING;
 		return error;
 	}
 
-	/*
-	 * Obtain the locked dquots. In case of an error (eg. allocation
-	 * fails for ENOSPC), we return the negative of the error number
-	 * to bulkstat, so that it can get propagated to quotacheck() and
-	 * making us disable quotas for the file system.
-	 */
-	if ((error = xfs_qm_dqget_noattach(ip, &udqp, &gdqp))) {
-		xfs_iput(ip, XFS_ILOCK_EXCL);
-		*res = BULKSTAT_RV_GIVEUP;
-		return error;
-	}
+	ASSERT(ip->i_delayed_blks == 0);
 
-	rtblks = 0;
-	if (! XFS_IS_REALTIME_INODE(ip)) {
-		nblks = (xfs_qcnt_t)ip->i_d.di_nblocks;
-	} else {
+	if (XFS_IS_REALTIME_INODE(ip)) {
 		/*
 		 * Walk thru the extent list and count the realtime blocks.
 		 */
-		if ((error = xfs_qm_get_rtblks(ip, &rtblks))) {
-			xfs_iput(ip, XFS_ILOCK_EXCL);
-			if (udqp)
-				xfs_qm_dqput(udqp);
-			if (gdqp)
-				xfs_qm_dqput(gdqp);
-			*res = BULKSTAT_RV_GIVEUP;
-			return error;
-		}
-		nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks;
+		error = xfs_qm_get_rtblks(ip, &rtblks);
+		if (error)
+			goto error0;
 	}
-	ASSERT(ip->i_delayed_blks == 0);
 
-	/*
-	 * We can't release the inode while holding its dquot locks.
-	 * The inode can go into inactive and might try to acquire the dquotlocks.
-	 * So, just unlock here and do a vn_rele at the end.
-	 */
-	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks;
 
 	/*
 	 * Add the (disk blocks and inode) resources occupied by this
@@ -1714,26 +1616,36 @@ xfs_qm_dqusage_adjust(
 	 * and quotaoffs don't race. (Quotachecks happen at mount time only).
 	 */
 	if (XFS_IS_UQUOTA_ON(mp)) {
-		ASSERT(udqp);
-		xfs_qm_quotacheck_dqadjust(udqp, nblks, rtblks);
-		xfs_qm_dqput(udqp);
+		error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid,
+						   XFS_DQ_USER, nblks, rtblks);
+		if (error)
+			goto error0;
 	}
-	if (XFS_IS_OQUOTA_ON(mp)) {
-		ASSERT(gdqp);
-		xfs_qm_quotacheck_dqadjust(gdqp, nblks, rtblks);
-		xfs_qm_dqput(gdqp);
+
+	if (XFS_IS_GQUOTA_ON(mp)) {
+		error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid,
+						   XFS_DQ_GROUP, nblks, rtblks);
+		if (error)
+			goto error0;
 	}
-	/*
-	 * Now release the inode. This will send it to 'inactive', and
-	 * possibly even free blocks.
-	 */
-	IRELE(ip);
 
-	/*
-	 * Goto next inode.
-	 */
+	if (XFS_IS_PQUOTA_ON(mp)) {
+		error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip),
+						   XFS_DQ_PROJ, nblks, rtblks);
+		if (error)
+			goto error0;
+	}
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	IRELE(ip);
 	*res = BULKSTAT_RV_DIDONE;
 	return 0;
+
+error0:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	IRELE(ip);
+	*res = BULKSTAT_RV_GIVEUP;
+	return error;
 }
 
 /*
@@ -2229,7 +2141,7 @@ xfs_qm_write_sb_changes(
 
 
 /*
- * Given an inode, a uid and gid (from cred_t) make sure that we have
+ * Given an inode, a uid, gid and prid make sure that we have
  * allocated relevant dquot(s) on disk, and that we won't exceed inode
  * quotas by creating this file.
  * This also attaches dquot(s) to the given inode after locking it,
@@ -2337,7 +2249,7 @@ xfs_qm_vop_dqalloc(
 			xfs_dqunlock(gq);
 		}
 	} else if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) {
-		if (ip->i_d.di_projid != prid) {
+		if (xfs_get_projid(ip) != prid) {
 			xfs_iunlock(ip, lockflags);
 			if ((error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid,
 						 XFS_DQ_PROJ,
@@ -2459,7 +2371,7 @@ xfs_qm_vop_chown_reserve(
 	}
 	if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) {
 		if (XFS_IS_PQUOTA_ON(ip->i_mount) &&
-		     ip->i_d.di_projid != be32_to_cpu(gdqp->q_core.d_id))
+		     xfs_get_projid(ip) != be32_to_cpu(gdqp->q_core.d_id))
 			prjflags = XFS_QMOPT_ENOSPC;
 
 		if (prjflags ||
@@ -2563,7 +2475,7 @@ xfs_qm_vop_create_dqattach(
 		ip->i_gdquot = gdqp;
 		ASSERT(XFS_IS_OQUOTA_ON(mp));
 		ASSERT((XFS_IS_GQUOTA_ON(mp) ?
-			ip->i_d.di_gid : ip->i_d.di_projid) ==
+			ip->i_d.di_gid : xfs_get_projid(ip)) ==
 				be32_to_cpu(gdqp->q_core.d_id));
 		xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);
 	}
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index 97b410c12794..45b5cb1788ab 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -23,25 +23,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
-#include "xfs_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_qm.h"
@@ -91,7 +81,7 @@ xfs_qm_statvfs(
 	xfs_mount_t		*mp = ip->i_mount;
 	xfs_dquot_t		*dqp;
 
-	if (!xfs_qm_dqget(mp, NULL, ip->i_d.di_projid, XFS_DQ_PROJ, 0, &dqp)) {
+	if (!xfs_qm_dqget(mp, NULL, xfs_get_projid(ip), XFS_DQ_PROJ, 0, &dqp)) {
 		xfs_fill_statvfs_from_dquot(statp, &dqp->q_core);
 		xfs_qm_dqput(dqp);
 	}
diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c
index 3d1fc79532e2..8671a0b32644 100644
--- a/fs/xfs/quota/xfs_qm_stats.c
+++ b/fs/xfs/quota/xfs_qm_stats.c
@@ -23,25 +23,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_bmap.h"
-#include "xfs_btree.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_qm.h"
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index b4487764e923..bdebc183223e 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -26,25 +26,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_bmap.h"
-#include "xfs_btree.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_utils.h"
@@ -248,40 +238,74 @@ out_unlock:
 	return error;
 }
 
+STATIC int
+xfs_qm_scall_trunc_qfile(
+	struct xfs_mount	*mp,
+	xfs_ino_t		ino)
+{
+	struct xfs_inode	*ip;
+	struct xfs_trans	*tp;
+	int			error;
+
+	if (ino == NULLFSINO)
+		return 0;
+
+	error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
+	if (error)
+		return error;
+
+	xfs_ilock(ip, XFS_IOLOCK_EXCL);
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
+	error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+				  XFS_TRANS_PERM_LOG_RES,
+				  XFS_ITRUNCATE_LOG_COUNT);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+		goto out_put;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip);
+
+	error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1);
+	if (error) {
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
+				     XFS_TRANS_ABORT);
+		goto out_unlock;
+	}
+
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+
+out_unlock:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+out_put:
+	IRELE(ip);
+	return error;
+}
+
 int
 xfs_qm_scall_trunc_qfiles(
 	xfs_mount_t	*mp,
 	uint		flags)
 {
 	int		error = 0, error2 = 0;
-	xfs_inode_t	*qip;
 
 	if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
 		qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
 		return XFS_ERROR(EINVAL);
 	}
 
-	if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
-		error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip);
-		if (!error) {
-			error = xfs_truncate_file(mp, qip);
-			IRELE(qip);
-		}
-	}
-
-	if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) &&
-	    mp->m_sb.sb_gquotino != NULLFSINO) {
-		error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip);
-		if (!error2) {
-			error2 = xfs_truncate_file(mp, qip);
-			IRELE(qip);
-		}
-	}
+	if (flags & XFS_DQ_USER)
+		error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
+	if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ))
+		error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
 
 	return error ? error : error2;
 }
 
-
 /*
  * Switch on (a given) quota enforcement for a filesystem.  This takes
  * effect immediately.
@@ -786,9 +810,9 @@ xfs_qm_export_dquot(
 	}
 
 #ifdef DEBUG
-	if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == XFS_USER_QUOTA) ||
+	if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
 	     (XFS_IS_OQUOTA_ENFORCED(mp) &&
-			(dst->d_flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)))) &&
+			(dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
 	    dst->d_id != 0) {
 		if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
 		    (dst->d_blk_softlimit > 0)) {
@@ -809,17 +833,17 @@ xfs_qm_export_qtype_flags(
 	/*
 	 * Can't be more than one, or none.
 	 */
-	ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) !=
-		(XFS_PROJ_QUOTA | XFS_USER_QUOTA));
-	ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) !=
-		(XFS_PROJ_QUOTA | XFS_GROUP_QUOTA));
-	ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) !=
-		(XFS_USER_QUOTA | XFS_GROUP_QUOTA));
-	ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0);
+	ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) !=
+		(FS_PROJ_QUOTA | FS_USER_QUOTA));
+	ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) !=
+		(FS_PROJ_QUOTA | FS_GROUP_QUOTA));
+	ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) !=
+		(FS_USER_QUOTA | FS_GROUP_QUOTA));
+	ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0);
 
 	return (flags & XFS_DQ_USER) ?
-		XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
-			XFS_PROJ_QUOTA : XFS_GROUP_QUOTA;
+		FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
+			FS_PROJ_QUOTA : FS_GROUP_QUOTA;
 }
 
 STATIC uint
@@ -830,16 +854,16 @@ xfs_qm_export_flags(
 
 	uflags = 0;
 	if (flags & XFS_UQUOTA_ACCT)
-		uflags |= XFS_QUOTA_UDQ_ACCT;
+		uflags |= FS_QUOTA_UDQ_ACCT;
 	if (flags & XFS_PQUOTA_ACCT)
-		uflags |= XFS_QUOTA_PDQ_ACCT;
+		uflags |= FS_QUOTA_PDQ_ACCT;
 	if (flags & XFS_GQUOTA_ACCT)
-		uflags |= XFS_QUOTA_GDQ_ACCT;
+		uflags |= FS_QUOTA_GDQ_ACCT;
 	if (flags & XFS_UQUOTA_ENFD)
-		uflags |= XFS_QUOTA_UDQ_ENFD;
+		uflags |= FS_QUOTA_UDQ_ENFD;
 	if (flags & (XFS_OQUOTA_ENFD)) {
 		uflags |= (flags & XFS_GQUOTA_ACCT) ?
-			XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD;
+			FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD;
 	}
 	return (uflags);
 }
@@ -851,21 +875,14 @@ xfs_dqrele_inode(
 	struct xfs_perag	*pag,
 	int			flags)
 {
-	int			error;
-
 	/* skip quota inodes */
 	if (ip == ip->i_mount->m_quotainfo->qi_uquotaip ||
 	    ip == ip->i_mount->m_quotainfo->qi_gquotaip) {
 		ASSERT(ip->i_udquot == NULL);
 		ASSERT(ip->i_gdquot == NULL);
-		read_unlock(&pag->pag_ici_lock);
 		return 0;
 	}
 
-	error = xfs_sync_inode_valid(ip, pag);
-	if (error)
-		return error;
-
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
 		xfs_qm_dqrele(ip->i_udquot);
@@ -875,8 +892,7 @@ xfs_dqrele_inode(
 		xfs_qm_dqrele(ip->i_gdquot);
 		ip->i_gdquot = NULL;
 	}
-	xfs_iput(ip, XFS_ILOCK_EXCL);
-
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	return 0;
 }
 
@@ -893,8 +909,7 @@ xfs_qm_dqrele_all_inodes(
 	uint		 flags)
 {
 	ASSERT(mp->m_quotainfo);
-	xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags,
-				XFS_ICI_NO_TAG, 0, NULL);
+	xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags);
 }
 
 /*------------------------------------------------------------------------*/
@@ -1143,13 +1158,14 @@ xfs_qm_internalqcheck_adjust(
 	 * of those now.
 	 */
 	if (! ipreleased) {
-		xfs_iput(ip, lock_flags);
+		xfs_iunlock(ip, lock_flags);
+		IRELE(ip);
 		ipreleased = B_TRUE;
 		goto again;
 	}
 	xfs_qm_internalqcheck_get_dquots(mp,
 					(xfs_dqid_t) ip->i_d.di_uid,
-					(xfs_dqid_t) ip->i_d.di_projid,
+					(xfs_dqid_t) xfs_get_projid(ip),
 					(xfs_dqid_t) ip->i_d.di_gid,
 					&ud, &gd);
 	if (XFS_IS_UQUOTA_ON(mp)) {
@@ -1160,7 +1176,8 @@ xfs_qm_internalqcheck_adjust(
 		ASSERT(gd);
 		xfs_qm_internalqcheck_dqadjust(ip, gd);
 	}
-	xfs_iput(ip, lock_flags);
+	xfs_iunlock(ip, lock_flags);
+	IRELE(ip);
 	*res = BULKSTAT_RV_DIDONE;
 	return (0);
 }
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 061d827da33c..7de91d1b75c0 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -23,25 +23,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
-#include "xfs_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
@@ -59,16 +49,14 @@ xfs_trans_dqjoin(
 	xfs_trans_t	*tp,
 	xfs_dquot_t	*dqp)
 {
-	xfs_dq_logitem_t    *lp = &dqp->q_logitem;
-
 	ASSERT(dqp->q_transp != tp);
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
-	ASSERT(lp->qli_dquot == dqp);
+	ASSERT(dqp->q_logitem.qli_dquot == dqp);
 
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)(lp));
+	xfs_trans_add_item(tp, &dqp->q_logitem.qli_item);
 
 	/*
 	 * Initialize i_transp so we can later determine if this dquot is
@@ -93,16 +81,11 @@ xfs_trans_log_dquot(
 	xfs_trans_t	*tp,
 	xfs_dquot_t	*dqp)
 {
-	xfs_log_item_desc_t	*lidp;
-
 	ASSERT(dqp->q_transp == tp);
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
 
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(&dqp->q_logitem));
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 }
 
 /*
@@ -874,9 +857,8 @@ xfs_trans_get_qoff_item(
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)q);
-
-	return (q);
+	xfs_trans_add_item(tp, &q->qql_item);
+	return q;
 }
 
 
@@ -890,13 +872,8 @@ xfs_trans_log_quotaoff_item(
 	xfs_trans_t		*tp,
 	xfs_qoff_logitem_t	*qlp)
 {
-	xfs_log_item_desc_t	*lidp;
-
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)qlp);
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 }
 
 STATIC void
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
index 3f3610a7ee05..975aa10e1a47 100644
--- a/fs/xfs/support/debug.c
+++ b/fs/xfs/support/debug.c
@@ -22,7 +22,6 @@
 #include "xfs_sb.h"
 #include "xfs_inum.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
 
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index 4917d4eed4ed..63c7a1a6c022 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -230,6 +230,15 @@ typedef struct xfs_perag {
 	rwlock_t	pag_ici_lock;	/* incore inode lock */
 	struct radix_tree_root pag_ici_root;	/* incore inode cache root */
 	int		pag_ici_reclaimable;	/* reclaimable inodes */
+	struct mutex	pag_ici_reclaim_lock;	/* serialisation point */
+	unsigned long	pag_ici_reclaim_cursor;	/* reclaim restart point */
+
+	/* buffer cache index */
+	spinlock_t	pag_buf_lock;	/* lock for pag_buf_tree */
+	struct rb_root	pag_buf_tree;	/* ordered tree of active buffers */
+
+	/* for rcu-safe freeing */
+	struct rcu_head	rcu_head;
 #endif
 	int		pagb_count;	/* pagb slots in use */
 } xfs_perag_t;
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index a7fbe8a99b12..112abc439ca5 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -24,18 +24,13 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
@@ -680,7 +675,7 @@ xfs_alloc_ag_vextent_near(
 	xfs_agblock_t	gtbnoa;		/* aligned ... */
 	xfs_extlen_t	gtdiff;		/* difference to right side entry */
 	xfs_extlen_t	gtlen;		/* length of right side entry */
-	xfs_extlen_t	gtlena;		/* aligned ... */
+	xfs_extlen_t	gtlena = 0;	/* aligned ... */
 	xfs_agblock_t	gtnew;		/* useful start bno of right side */
 	int		error;		/* error code */
 	int		i;		/* result code, temporary */
@@ -688,10 +683,8 @@ xfs_alloc_ag_vextent_near(
 	xfs_agblock_t	ltbno;		/* start bno of left side entry */
 	xfs_agblock_t	ltbnoa;		/* aligned ... */
 	xfs_extlen_t	ltdiff;		/* difference to left side entry */
-	/*REFERENCED*/
-	xfs_agblock_t	ltend;		/* end bno of left side entry */
 	xfs_extlen_t	ltlen;		/* length of left side entry */
-	xfs_extlen_t	ltlena;		/* aligned ... */
+	xfs_extlen_t	ltlena = 0;	/* aligned ... */
 	xfs_agblock_t	ltnew;		/* useful start bno of left side */
 	xfs_extlen_t	rlen;		/* length of returned extent */
 #if defined(DEBUG) && defined(__KERNEL__)
@@ -814,8 +807,7 @@ xfs_alloc_ag_vextent_near(
 		if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
 			goto error0;
 		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
-		ltend = ltbno + ltlen;
-		ASSERT(ltend <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
+		ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
 		args->len = blen;
 		if (!xfs_alloc_fix_minleft(args)) {
 			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
@@ -828,7 +820,7 @@ xfs_alloc_ag_vextent_near(
 		 */
 		args->agbno = bnew;
 		ASSERT(bnew >= ltbno);
-		ASSERT(bnew + blen <= ltend);
+		ASSERT(bnew + blen <= ltbno + ltlen);
 		/*
 		 * Set up a cursor for the by-bno tree.
 		 */
@@ -1157,7 +1149,6 @@ xfs_alloc_ag_vextent_near(
 	/*
 	 * Fix up the length and compute the useful address.
 	 */
-	ltend = ltbno + ltlen;
 	args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
 	xfs_alloc_fix_len(args);
 	if (!xfs_alloc_fix_minleft(args)) {
@@ -1170,7 +1161,7 @@ xfs_alloc_ag_vextent_near(
 	(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment, ltbno,
 		ltlen, &ltnew);
 	ASSERT(ltnew >= ltbno);
-	ASSERT(ltnew + rlen <= ltend);
+	ASSERT(ltnew + rlen <= ltbno + ltlen);
 	ASSERT(ltnew + rlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
 	args->agbno = ltnew;
 	if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur_lt, ltbno, ltlen,
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 6d05199b667c..895009a97271 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -27,16 +27,16 @@ struct xfs_busy_extent;
 /*
  * Freespace allocation types.  Argument to xfs_alloc_[v]extent.
  */
-typedef enum xfs_alloctype
-{
-	XFS_ALLOCTYPE_ANY_AG,		/* allocate anywhere, use rotor */
-	XFS_ALLOCTYPE_FIRST_AG,		/* ... start at ag 0 */
-	XFS_ALLOCTYPE_START_AG,		/* anywhere, start in this a.g. */
-	XFS_ALLOCTYPE_THIS_AG,		/* anywhere in this a.g. */
-	XFS_ALLOCTYPE_START_BNO,	/* near this block else anywhere */
-	XFS_ALLOCTYPE_NEAR_BNO,		/* in this a.g. and near this block */
-	XFS_ALLOCTYPE_THIS_BNO		/* at exactly this block */
-} xfs_alloctype_t;
+#define XFS_ALLOCTYPE_ANY_AG	0x01	/* allocate anywhere, use rotor */
+#define XFS_ALLOCTYPE_FIRST_AG	0x02	/* ... start at ag 0 */
+#define XFS_ALLOCTYPE_START_AG	0x04	/* anywhere, start in this a.g. */
+#define XFS_ALLOCTYPE_THIS_AG	0x08	/* anywhere in this a.g. */
+#define XFS_ALLOCTYPE_START_BNO	0x10	/* near this block else anywhere */
+#define XFS_ALLOCTYPE_NEAR_BNO	0x20	/* in this a.g. and near this block */
+#define XFS_ALLOCTYPE_THIS_BNO	0x40	/* at exactly this block */
+
+/* this should become an enum again when the tracing code is fixed */
+typedef unsigned int xfs_alloctype_t;
 
 #define XFS_ALLOC_TYPES \
 	{ XFS_ALLOCTYPE_ANY_AG,		"ANY_AG" }, \
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 83f494218759..3916925e2584 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -24,19 +24,14 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
 #include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
@@ -285,38 +280,6 @@ xfs_allocbt_key_diff(
 	return (__int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
 }
 
-STATIC int
-xfs_allocbt_kill_root(
-	struct xfs_btree_cur	*cur,
-	struct xfs_buf		*bp,
-	int			level,
-	union xfs_btree_ptr	*newroot)
-{
-	int			error;
-
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
-	XFS_BTREE_STATS_INC(cur, killroot);
-
-	/*
-	 * Update the root pointer, decreasing the level by 1 and then
-	 * free the old root.
-	 */
-	xfs_allocbt_set_root(cur, newroot, -1);
-	error = xfs_allocbt_free_block(cur, bp);
-	if (error) {
-		XFS_BTREE_TRACE_CURSOR(cur, XBT_ERROR);
-		return error;
-	}
-
-	XFS_BTREE_STATS_INC(cur, free);
-
-	xfs_btree_setbuf(cur, level, NULL);
-	cur->bc_nlevels--;
-
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
-	return 0;
-}
-
 #ifdef DEBUG
 STATIC int
 xfs_allocbt_keys_inorder(
@@ -428,7 +391,6 @@ static const struct xfs_btree_ops xfs_allocbt_ops = {
 
 	.dup_cursor		= xfs_allocbt_dup_cursor,
 	.set_root		= xfs_allocbt_set_root,
-	.kill_root		= xfs_allocbt_kill_root,
 	.alloc_block		= xfs_allocbt_alloc_block,
 	.free_block		= xfs_allocbt_free_block,
 	.update_lastrec		= xfs_allocbt_update_lastrec,
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index b9c196a53c42..c86375378810 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -25,19 +25,13 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
-#include "xfs_btree.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
@@ -325,8 +319,7 @@ xfs_attr_set_int(
 		return (error);
 	}
 
-	xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(args.trans, dp);
+	xfs_trans_ijoin(args.trans, dp);
 
 	/*
 	 * If the attribute list is non-existent or a shortform list,
@@ -362,16 +355,15 @@ xfs_attr_set_int(
 			if (mp->m_flags & XFS_MOUNT_WSYNC) {
 				xfs_trans_set_sync(args.trans);
 			}
+
+			if (!error && (flags & ATTR_KERNOTIME) == 0) {
+				xfs_trans_ichgtime(args.trans, dp,
+							XFS_ICHGTIME_CHG);
+			}
 			err2 = xfs_trans_commit(args.trans,
 						 XFS_TRANS_RELEASE_LOG_RES);
 			xfs_iunlock(dp, XFS_ILOCK_EXCL);
 
-			/*
-			 * Hit the inode change time.
-			 */
-			if (!error && (flags & ATTR_KERNOTIME) == 0) {
-				xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
-			}
 			return(error == 0 ? err2 : error);
 		}
 
@@ -396,10 +388,8 @@ xfs_attr_set_int(
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args.trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args.trans, dp);
 
 		/*
 		 * Commit the leaf transformation.  We'll need another (linked)
@@ -429,6 +419,9 @@ xfs_attr_set_int(
 		xfs_trans_set_sync(args.trans);
 	}
 
+	if ((flags & ATTR_KERNOTIME) == 0)
+		xfs_trans_ichgtime(args.trans, dp, XFS_ICHGTIME_CHG);
+
 	/*
 	 * Commit the last in the sequence of transactions.
 	 */
@@ -436,13 +429,6 @@ xfs_attr_set_int(
 	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES);
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
 
-	/*
-	 * Hit the inode change time.
-	 */
-	if (!error && (flags & ATTR_KERNOTIME) == 0) {
-		xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
-	}
-
 	return(error);
 
 out:
@@ -544,8 +530,7 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
 	 * No need to make quota reservations here. We expect to release some
 	 * blocks not allocate in the common case.
 	 */
-	xfs_trans_ijoin(args.trans, dp, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(args.trans, dp);
+	xfs_trans_ijoin(args.trans, dp);
 
 	/*
 	 * Decide on what work routines to call based on the inode size.
@@ -577,6 +562,9 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
 		xfs_trans_set_sync(args.trans);
 	}
 
+	if ((flags & ATTR_KERNOTIME) == 0)
+		xfs_trans_ichgtime(args.trans, dp, XFS_ICHGTIME_CHG);
+
 	/*
 	 * Commit the last in the sequence of transactions.
 	 */
@@ -584,13 +572,6 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
 	error = xfs_trans_commit(args.trans, XFS_TRANS_RELEASE_LOG_RES);
 	xfs_iunlock(dp, XFS_ILOCK_EXCL);
 
-	/*
-	 * Hit the inode change time.
-	 */
-	if (!error && (flags & ATTR_KERNOTIME) == 0) {
-		xfs_ichgtime(dp, XFS_ICHGTIME_CHG);
-	}
-
 	return(error);
 
 out:
@@ -821,8 +802,7 @@ xfs_attr_inactive(xfs_inode_t *dp)
 	 * No need to make quota reservations here. We expect to release some
 	 * blocks, not allocate, in the common case.
 	 */
-	xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(trans, dp);
+	xfs_trans_ijoin(trans, dp);
 
 	/*
 	 * Decide on what work routines to call based on the inode size.
@@ -981,10 +961,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, dp);
 
 		/*
 		 * Commit the current trans (including the inode) and start
@@ -1085,10 +1063,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 			 * and started a new one.  We need the inode to be
 			 * in all transactions.
 			 */
-			if (committed) {
-				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-				xfs_trans_ihold(args->trans, dp);
-			}
+			if (committed)
+				xfs_trans_ijoin(args->trans, dp);
 		} else
 			xfs_da_buf_done(bp);
 
@@ -1161,10 +1137,8 @@ xfs_attr_leaf_removename(xfs_da_args_t *args)
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, dp);
 	} else
 		xfs_da_buf_done(bp);
 	return(0);
@@ -1317,10 +1291,8 @@ restart:
 			 * and started a new one.  We need the inode to be
 			 * in all transactions.
 			 */
-			if (committed) {
-				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-				xfs_trans_ihold(args->trans, dp);
-			}
+			if (committed)
+				xfs_trans_ijoin(args->trans, dp);
 
 			/*
 			 * Commit the node conversion and start the next
@@ -1356,10 +1328,8 @@ restart:
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, dp);
 	} else {
 		/*
 		 * Addition succeeded, update Btree hashvals.
@@ -1470,10 +1440,8 @@ restart:
 			 * and started a new one.  We need the inode to be
 			 * in all transactions.
 			 */
-			if (committed) {
-				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-				xfs_trans_ihold(args->trans, dp);
-			}
+			if (committed)
+				xfs_trans_ijoin(args->trans, dp);
 		}
 
 		/*
@@ -1604,10 +1572,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, dp);
 
 		/*
 		 * Commit the Btree join operation and start a new trans.
@@ -1658,10 +1624,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
 			 * and started a new one.  We need the inode to be
 			 * in all transactions.
 			 */
-			if (committed) {
-				xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-				xfs_trans_ihold(args->trans, dp);
-			}
+			if (committed)
+				xfs_trans_ijoin(args->trans, dp);
 		} else
 			xfs_da_brelse(args->trans, bp);
 	}
@@ -2004,7 +1968,7 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
 		error = xfs_bmapi(args->trans, args->dp, (xfs_fileoff_t)lblkno,
 				  args->rmtblkcnt,
 				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
-				  NULL, 0, map, &nmap, NULL, NULL);
+				  NULL, 0, map, &nmap, NULL);
 		if (error)
 			return(error);
 		ASSERT(nmap >= 1);
@@ -2022,7 +1986,7 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
 
 			tmp = (valuelen < XFS_BUF_SIZE(bp))
 				? valuelen : XFS_BUF_SIZE(bp);
-			xfs_biomove(bp, 0, tmp, dst, XBF_READ);
+			xfs_buf_iomove(bp, 0, tmp, dst, XBRW_READ);
 			xfs_buf_relse(bp);
 			dst += tmp;
 			valuelen -= tmp;
@@ -2083,7 +2047,7 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
 				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA |
 							XFS_BMAPI_WRITE,
 				  args->firstblock, args->total, &map, &nmap,
-				  args->flist, NULL);
+				  args->flist);
 		if (!error) {
 			error = xfs_bmap_finish(&args->trans, args->flist,
 						&committed);
@@ -2099,10 +2063,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, dp);
 
 		ASSERT(nmap == 1);
 		ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
@@ -2136,7 +2098,7 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
 				  args->rmtblkcnt,
 				  XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
 				  args->firstblock, 0, &map, &nmap,
-				  NULL, NULL);
+				  NULL);
 		if (error) {
 			return(error);
 		}
@@ -2154,9 +2116,9 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
 
 		tmp = (valuelen < XFS_BUF_SIZE(bp)) ? valuelen :
 							XFS_BUF_SIZE(bp);
-		xfs_biomove(bp, 0, tmp, src, XBF_WRITE);
+		xfs_buf_iomove(bp, 0, tmp, src, XBRW_WRITE);
 		if (tmp < XFS_BUF_SIZE(bp))
-			xfs_biozero(bp, tmp, XFS_BUF_SIZE(bp) - tmp);
+			xfs_buf_zero(bp, tmp, XFS_BUF_SIZE(bp) - tmp);
 		if ((error = xfs_bwrite(mp, bp))) {/* GROT: NOTE: synchronous write */
 			return (error);
 		}
@@ -2201,7 +2163,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
 					args->rmtblkcnt,
 					XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
 					args->firstblock, 0, &map, &nmap,
-					args->flist, NULL);
+					args->flist);
 		if (error) {
 			return(error);
 		}
@@ -2239,7 +2201,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
 		error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
 				    XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
 				    1, args->firstblock, args->flist,
-				    NULL, &done);
+				    &done);
 		if (!error) {
 			error = xfs_bmap_finish(&args->trans, args->flist,
 						&committed);
@@ -2255,10 +2217,8 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
 		 * bmap_finish() may have committed the last trans and started
 		 * a new one.  We need the inode to be in all transactions.
 		 */
-		if (committed) {
-			xfs_trans_ijoin(args->trans, args->dp, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(args->trans, args->dp);
-		}
+		if (committed)
+			xfs_trans_ijoin(args->trans, args->dp);
 
 		/*
 		 * Close out trans and start the next one in the chain.
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index a90ce74fc256..a6cff8edcdb6 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -24,8 +24,6 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
@@ -33,7 +31,6 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_btree.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
@@ -2931,7 +2928,7 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
 		nmap = 1;
 		error = xfs_bmapi(*trans, dp, (xfs_fileoff_t)tblkno, tblkcnt,
 					XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
-					NULL, 0, &map, &nmap, NULL, NULL);
+					NULL, 0, &map, &nmap, NULL);
 		if (error) {
 			return(error);
 		}
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 99587ded043f..8abd12e32e13 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -30,13 +30,10 @@
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_dir2_data.h"
 #include "xfs_dir2_leaf.h"
@@ -104,7 +101,6 @@ xfs_bmap_add_extent(
 	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
 	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork, /* data or attr fork */
 	int			rsvd);	/* OK to allocate reserved blocks */
 
@@ -122,7 +118,6 @@ xfs_bmap_add_extent_delay_real(
 	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
 	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			rsvd);	/* OK to allocate reserved blocks */
 
 /*
@@ -135,7 +130,6 @@ xfs_bmap_add_extent_hole_delay(
 	xfs_extnum_t		idx,	/* extent number to update/insert */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	int			*logflagsp,/* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			rsvd);	/* OK to allocate reserved blocks */
 
 /*
@@ -149,7 +143,6 @@ xfs_bmap_add_extent_hole_real(
 	xfs_btree_cur_t		*cur,	/* if null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork); /* data or attr fork */
 
 /*
@@ -162,8 +155,7 @@ xfs_bmap_add_extent_unwritten_real(
 	xfs_extnum_t		idx,	/* extent number to update/insert */
 	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
-	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta); /* Change made to incore extents */
+	int			*logflagsp); /* inode logging flags */
 
 /*
  * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
@@ -200,7 +192,6 @@ xfs_bmap_del_extent(
 	xfs_btree_cur_t		*cur,	/* if null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	int			*logflagsp,/* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork, /* data or attr fork */
 	int			rsvd);	 /* OK to allocate reserved blocks */
 
@@ -489,7 +480,6 @@ xfs_bmap_add_extent(
 	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
 	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork, /* data or attr fork */
 	int			rsvd)	/* OK to use reserved data blocks */
 {
@@ -524,15 +514,6 @@ xfs_bmap_add_extent(
 			logflags = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
 		} else
 			logflags = 0;
-		/* DELTA: single new extent */
-		if (delta) {
-			if (delta->xed_startoff > new->br_startoff)
-				delta->xed_startoff = new->br_startoff;
-			if (delta->xed_blockcount <
-					new->br_startoff + new->br_blockcount)
-				delta->xed_blockcount = new->br_startoff +
-						new->br_blockcount;
-		}
 	}
 	/*
 	 * Any kind of new delayed allocation goes here.
@@ -542,7 +523,7 @@ xfs_bmap_add_extent(
 			ASSERT((cur->bc_private.b.flags &
 				XFS_BTCUR_BPRV_WASDEL) == 0);
 		if ((error = xfs_bmap_add_extent_hole_delay(ip, idx, new,
-				&logflags, delta, rsvd)))
+				&logflags, rsvd)))
 			goto done;
 	}
 	/*
@@ -553,7 +534,7 @@ xfs_bmap_add_extent(
 			ASSERT((cur->bc_private.b.flags &
 				XFS_BTCUR_BPRV_WASDEL) == 0);
 		if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur, new,
-				&logflags, delta, whichfork)))
+				&logflags, whichfork)))
 			goto done;
 	} else {
 		xfs_bmbt_irec_t	prev;	/* old extent at offset idx */
@@ -578,17 +559,17 @@ xfs_bmap_add_extent(
 						XFS_BTCUR_BPRV_WASDEL);
 				if ((error = xfs_bmap_add_extent_delay_real(ip,
 					idx, &cur, new, &da_new, first, flist,
-					&logflags, delta, rsvd)))
+					&logflags, rsvd)))
 					goto done;
 			} else if (new->br_state == XFS_EXT_NORM) {
 				ASSERT(new->br_state == XFS_EXT_NORM);
 				if ((error = xfs_bmap_add_extent_unwritten_real(
-					ip, idx, &cur, new, &logflags, delta)))
+					ip, idx, &cur, new, &logflags)))
 					goto done;
 			} else {
 				ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
 				if ((error = xfs_bmap_add_extent_unwritten_real(
-					ip, idx, &cur, new, &logflags, delta)))
+					ip, idx, &cur, new, &logflags)))
 					goto done;
 			}
 			ASSERT(*curp == cur || *curp == NULL);
@@ -601,7 +582,7 @@ xfs_bmap_add_extent(
 				ASSERT((cur->bc_private.b.flags &
 					XFS_BTCUR_BPRV_WASDEL) == 0);
 			if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur,
-					new, &logflags, delta, whichfork)))
+					new, &logflags, whichfork)))
 				goto done;
 		}
 	}
@@ -633,7 +614,7 @@ xfs_bmap_add_extent(
 			nblks += cur->bc_private.b.allocated;
 		ASSERT(nblks <= da_old);
 		if (nblks < da_old)
-			xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS,
+			xfs_icsb_modify_counters(ip->i_mount, XFS_SBS_FDBLOCKS,
 				(int64_t)(da_old - nblks), rsvd);
 	}
 	/*
@@ -666,7 +647,6 @@ xfs_bmap_add_extent_delay_real(
 	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
 	xfs_bmap_free_t		*flist,	/* list of extents to be freed */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			rsvd)	/* OK to use reserved data block allocation */
 {
 	xfs_btree_cur_t		*cur;	/* btree cursor */
@@ -797,11 +777,6 @@ xfs_bmap_add_extent_delay_real(
 				goto done;
 		}
 		*dnew = 0;
-		/* DELTA: Three in-core extents are replaced by one. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -832,10 +807,6 @@ xfs_bmap_add_extent_delay_real(
 				goto done;
 		}
 		*dnew = 0;
-		/* DELTA: Two in-core extents are replaced by one. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -867,10 +838,6 @@ xfs_bmap_add_extent_delay_real(
 				goto done;
 		}
 		*dnew = 0;
-		/* DELTA: Two in-core extents are replaced by one. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -900,9 +867,6 @@ xfs_bmap_add_extent_delay_real(
 			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		*dnew = 0;
-		/* DELTA: The in-core extent described by new changed type. */
-		temp = new->br_startoff;
-		temp2 = new->br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -942,10 +906,6 @@ xfs_bmap_add_extent_delay_real(
 		xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
 		trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
 		*dnew = temp;
-		/* DELTA: The boundary between two in-core extents moved. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING:
@@ -990,9 +950,6 @@ xfs_bmap_add_extent_delay_real(
 		xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
 		trace_xfs_bmap_post_update(ip, idx + 1, state, _THIS_IP_);
 		*dnew = temp;
-		/* DELTA: One in-core extent is split in two. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1031,10 +988,6 @@ xfs_bmap_add_extent_delay_real(
 		xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
 		trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
 		*dnew = temp;
-		/* DELTA: The boundary between two in-core extents moved. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_RIGHT_FILLING:
@@ -1078,9 +1031,6 @@ xfs_bmap_add_extent_delay_real(
 		xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
 		trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
 		*dnew = temp;
-		/* DELTA: One in-core extent is split in two. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case 0:
@@ -1129,7 +1079,8 @@ xfs_bmap_add_extent_delay_real(
 		diff = (int)(temp + temp2 - startblockval(PREV.br_startblock) -
 			(cur ? cur->bc_private.b.allocated : 0));
 		if (diff > 0 &&
-		    xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS, -((int64_t)diff), rsvd)) {
+		    xfs_icsb_modify_counters(ip->i_mount, XFS_SBS_FDBLOCKS,
+					     -((int64_t)diff), rsvd)) {
 			/*
 			 * Ick gross gag me with a spoon.
 			 */
@@ -1139,16 +1090,18 @@ xfs_bmap_add_extent_delay_real(
 					temp--;
 					diff--;
 					if (!diff ||
-					    !xfs_mod_incore_sb(ip->i_mount,
-						    XFS_SBS_FDBLOCKS, -((int64_t)diff), rsvd))
+					    !xfs_icsb_modify_counters(ip->i_mount,
+						    XFS_SBS_FDBLOCKS,
+						    -((int64_t)diff), rsvd))
 						break;
 				}
 				if (temp2) {
 					temp2--;
 					diff--;
 					if (!diff ||
-					    !xfs_mod_incore_sb(ip->i_mount,
-						    XFS_SBS_FDBLOCKS, -((int64_t)diff), rsvd))
+					    !xfs_icsb_modify_counters(ip->i_mount,
+						    XFS_SBS_FDBLOCKS,
+						    -((int64_t)diff), rsvd))
 						break;
 				}
 			}
@@ -1161,9 +1114,6 @@ xfs_bmap_add_extent_delay_real(
 			nullstartblock((int)temp2));
 		trace_xfs_bmap_post_update(ip, idx + 2, state, _THIS_IP_);
 		*dnew = temp + temp2;
-		/* DELTA: One in-core extent is split in three. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1179,13 +1129,6 @@ xfs_bmap_add_extent_delay_real(
 		ASSERT(0);
 	}
 	*curp = cur;
-	if (delta) {
-		temp2 += temp;
-		if (delta->xed_startoff > temp)
-			delta->xed_startoff = temp;
-		if (delta->xed_blockcount < temp2)
-			delta->xed_blockcount = temp2;
-	}
 done:
 	*logflagsp = rval;
 	return error;
@@ -1204,8 +1147,7 @@ xfs_bmap_add_extent_unwritten_real(
 	xfs_extnum_t		idx,	/* extent number to update/insert */
 	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
-	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta) /* Change made to incore extents */
+	int			*logflagsp) /* inode logging flags */
 {
 	xfs_btree_cur_t		*cur;	/* btree cursor */
 	xfs_bmbt_rec_host_t	*ep;	/* extent entry for idx */
@@ -1219,8 +1161,6 @@ xfs_bmap_add_extent_unwritten_real(
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
 	int			state = 0;/* state bits, accessed thru macros */
-	xfs_filblks_t		temp=0;
-	xfs_filblks_t		temp2=0;
 
 #define	LEFT		r[0]
 #define	RIGHT		r[1]
@@ -1341,11 +1281,6 @@ xfs_bmap_add_extent_unwritten_real(
 				RIGHT.br_blockcount, LEFT.br_state)))
 				goto done;
 		}
-		/* DELTA: Three in-core extents are replaced by one. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -1382,10 +1317,6 @@ xfs_bmap_add_extent_unwritten_real(
 				LEFT.br_state)))
 				goto done;
 		}
-		/* DELTA: Two in-core extents are replaced by one. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1422,10 +1353,6 @@ xfs_bmap_add_extent_unwritten_real(
 				newext)))
 				goto done;
 		}
-		/* DELTA: Two in-core extents are replaced by one. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -1453,9 +1380,6 @@ xfs_bmap_add_extent_unwritten_real(
 				newext)))
 				goto done;
 		}
-		/* DELTA: The in-core extent described by new changed type. */
-		temp = new->br_startoff;
-		temp2 = new->br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -1501,10 +1425,6 @@ xfs_bmap_add_extent_unwritten_real(
 				LEFT.br_state))
 				goto done;
 		}
-		/* DELTA: The boundary between two in-core extents moved. */
-		temp = LEFT.br_startoff;
-		temp2 = LEFT.br_blockcount +
-			PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING:
@@ -1544,9 +1464,6 @@ xfs_bmap_add_extent_unwritten_real(
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
-		/* DELTA: One in-core extent is split in two. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1587,10 +1504,6 @@ xfs_bmap_add_extent_unwritten_real(
 				newext)))
 				goto done;
 		}
-		/* DELTA: The boundary between two in-core extents moved. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount +
-			RIGHT.br_blockcount;
 		break;
 
 	case BMAP_RIGHT_FILLING:
@@ -1630,9 +1543,6 @@ xfs_bmap_add_extent_unwritten_real(
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
-		/* DELTA: One in-core extent is split in two. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case 0:
@@ -1692,9 +1602,6 @@ xfs_bmap_add_extent_unwritten_real(
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
-		/* DELTA: One in-core extent is split in three. */
-		temp = PREV.br_startoff;
-		temp2 = PREV.br_blockcount;
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1710,13 +1617,6 @@ xfs_bmap_add_extent_unwritten_real(
 		ASSERT(0);
 	}
 	*curp = cur;
-	if (delta) {
-		temp2 += temp;
-		if (delta->xed_startoff > temp)
-			delta->xed_startoff = temp;
-		if (delta->xed_blockcount < temp2)
-			delta->xed_blockcount = temp2;
-	}
 done:
 	*logflagsp = rval;
 	return error;
@@ -1736,7 +1636,6 @@ xfs_bmap_add_extent_hole_delay(
 	xfs_extnum_t		idx,	/* extent number to update/insert */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			rsvd)		/* OK to allocate reserved blocks */
 {
 	xfs_bmbt_rec_host_t	*ep;	/* extent record for idx */
@@ -1747,7 +1646,6 @@ xfs_bmap_add_extent_hole_delay(
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
 	int			state;  /* state bits, accessed thru macros */
 	xfs_filblks_t		temp=0;	/* temp for indirect calculations */
-	xfs_filblks_t		temp2=0;
 
 	ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
 	ep = xfs_iext_get_ext(ifp, idx);
@@ -1819,9 +1717,6 @@ xfs_bmap_add_extent_hole_delay(
 
 		xfs_iext_remove(ip, idx, 1, state);
 		ip->i_df.if_lastex = idx - 1;
-		/* DELTA: Two in-core extents were replaced by one. */
-		temp2 = temp;
-		temp = left.br_startoff;
 		break;
 
 	case BMAP_LEFT_CONTIG:
@@ -1841,9 +1736,6 @@ xfs_bmap_add_extent_hole_delay(
 		trace_xfs_bmap_post_update(ip, idx - 1, state, _THIS_IP_);
 
 		ip->i_df.if_lastex = idx - 1;
-		/* DELTA: One in-core extent grew into a hole. */
-		temp2 = temp;
-		temp = left.br_startoff;
 		break;
 
 	case BMAP_RIGHT_CONTIG:
@@ -1862,9 +1754,6 @@ xfs_bmap_add_extent_hole_delay(
 		trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
 
 		ip->i_df.if_lastex = idx;
-		/* DELTA: One in-core extent grew into a hole. */
-		temp2 = temp;
-		temp = new->br_startoff;
 		break;
 
 	case 0:
@@ -1876,26 +1765,16 @@ xfs_bmap_add_extent_hole_delay(
 		oldlen = newlen = 0;
 		xfs_iext_insert(ip, idx, 1, new, state);
 		ip->i_df.if_lastex = idx;
-		/* DELTA: A new in-core extent was added in a hole. */
-		temp2 = new->br_blockcount;
-		temp = new->br_startoff;
 		break;
 	}
 	if (oldlen != newlen) {
 		ASSERT(oldlen > newlen);
-		xfs_mod_incore_sb(ip->i_mount, XFS_SBS_FDBLOCKS,
+		xfs_icsb_modify_counters(ip->i_mount, XFS_SBS_FDBLOCKS,
 			(int64_t)(oldlen - newlen), rsvd);
 		/*
 		 * Nothing to do for disk quota accounting here.
 		 */
 	}
-	if (delta) {
-		temp2 += temp;
-		if (delta->xed_startoff > temp)
-			delta->xed_startoff = temp;
-		if (delta->xed_blockcount < temp2)
-			delta->xed_blockcount = temp2;
-	}
 	*logflagsp = 0;
 	return 0;
 }
@@ -1911,7 +1790,6 @@ xfs_bmap_add_extent_hole_real(
 	xfs_btree_cur_t		*cur,	/* if null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork) /* data or attr fork */
 {
 	xfs_bmbt_rec_host_t	*ep;	/* pointer to extent entry ins. point */
@@ -1922,8 +1800,6 @@ xfs_bmap_add_extent_hole_real(
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
 	int			rval=0;	/* return value (logging flags) */
 	int			state;	/* state bits, accessed thru macros */
-	xfs_filblks_t		temp=0;
-	xfs_filblks_t		temp2=0;
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
@@ -2020,11 +1896,6 @@ xfs_bmap_add_extent_hole_real(
 					left.br_state)))
 				goto done;
 		}
-		/* DELTA: Two in-core extents were replaced by one. */
-		temp = left.br_startoff;
-		temp2 = left.br_blockcount +
-			new->br_blockcount +
-			right.br_blockcount;
 		break;
 
 	case BMAP_LEFT_CONTIG:
@@ -2056,10 +1927,6 @@ xfs_bmap_add_extent_hole_real(
 					left.br_state)))
 				goto done;
 		}
-		/* DELTA: One in-core extent grew. */
-		temp = left.br_startoff;
-		temp2 = left.br_blockcount +
-			new->br_blockcount;
 		break;
 
 	case BMAP_RIGHT_CONTIG:
@@ -2092,10 +1959,6 @@ xfs_bmap_add_extent_hole_real(
 					right.br_state)))
 				goto done;
 		}
-		/* DELTA: One in-core extent grew. */
-		temp = new->br_startoff;
-		temp2 = new->br_blockcount +
-			right.br_blockcount;
 		break;
 
 	case 0:
@@ -2123,18 +1986,8 @@ xfs_bmap_add_extent_hole_real(
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
-		/* DELTA: A new extent was added in a hole. */
-		temp = new->br_startoff;
-		temp2 = new->br_blockcount;
 		break;
 	}
-	if (delta) {
-		temp2 += temp;
-		if (delta->xed_startoff > temp)
-			delta->xed_startoff = temp;
-		if (delta->xed_blockcount < temp2)
-			delta->xed_blockcount = temp2;
-	}
 done:
 	*logflagsp = rval;
 	return error;
@@ -2959,7 +2812,6 @@ xfs_bmap_del_extent(
 	xfs_btree_cur_t		*cur,	/* if null, not a btree */
 	xfs_bmbt_irec_t		*del,	/* data to remove from extents */
 	int			*logflagsp, /* inode logging flags */
-	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork, /* data or attr fork */
 	int			rsvd)	/* OK to allocate reserved blocks */
 {
@@ -3262,16 +3114,9 @@ xfs_bmap_del_extent(
 	 * Nothing to do for disk quota accounting here.
 	 */
 	ASSERT(da_old >= da_new);
-	if (da_old > da_new)
-		xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int64_t)(da_old - da_new),
-			rsvd);
-	if (delta) {
-		/* DELTA: report the original extent. */
-		if (delta->xed_startoff > got.br_startoff)
-			delta->xed_startoff = got.br_startoff;
-		if (delta->xed_blockcount < got.br_startoff+got.br_blockcount)
-			delta->xed_blockcount = got.br_startoff +
-							got.br_blockcount;
+	if (da_old > da_new) {
+		xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
+			(int64_t)(da_old - da_new), rsvd);
 	}
 done:
 	*logflagsp = flags;
@@ -3754,9 +3599,10 @@ xfs_bmap_add_attrfork(
 		ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
 	}
 	ASSERT(ip->i_d.di_anextents == 0);
-	IHOLD(ip);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+	xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
 	switch (ip->i_d.di_format) {
 	case XFS_DINODE_FMT_DEV:
 		ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
@@ -4483,8 +4329,7 @@ xfs_bmapi(
 	xfs_extlen_t	total,		/* total blocks needed */
 	xfs_bmbt_irec_t	*mval,		/* output: map values */
 	int		*nmap,		/* i/o: mval size/count */
-	xfs_bmap_free_t	*flist,		/* i/o: list extents to free */
-	xfs_extdelta_t	*delta)		/* o: change made to incore extents */
+	xfs_bmap_free_t	*flist)		/* i/o: list extents to free */
 {
 	xfs_fsblock_t	abno;		/* allocated block number */
 	xfs_extlen_t	alen;		/* allocated extent length */
@@ -4596,10 +4441,7 @@ xfs_bmapi(
 	end = bno + len;
 	obno = bno;
 	bma.ip = NULL;
-	if (delta) {
-		delta->xed_startoff = NULLFILEOFF;
-		delta->xed_blockcount = 0;
-	}
+
 	while (bno < end && n < *nmap) {
 		/*
 		 * Reading past eof, act as though there's a hole
@@ -4620,19 +4462,13 @@ xfs_bmapi(
 			 * allocate the stuff asked for in this bmap call
 			 * but that wouldn't be as good.
 			 */
-			if (wasdelay && !(flags & XFS_BMAPI_EXACT)) {
+			if (wasdelay) {
 				alen = (xfs_extlen_t)got.br_blockcount;
 				aoff = got.br_startoff;
 				if (lastx != NULLEXTNUM && lastx) {
 					ep = xfs_iext_get_ext(ifp, lastx - 1);
 					xfs_bmbt_get_all(ep, &prev);
 				}
-			} else if (wasdelay) {
-				alen = (xfs_extlen_t)
-					XFS_FILBLKS_MIN(len,
-						(got.br_startoff +
-						 got.br_blockcount) - bno);
-				aoff = bno;
 			} else {
 				alen = (xfs_extlen_t)
 					XFS_FILBLKS_MIN(len, MAXEXTLEN);
@@ -4694,13 +4530,13 @@ xfs_bmapi(
 							-((int64_t)extsz), (flags &
 							XFS_BMAPI_RSVBLOCKS));
 				} else {
-					error = xfs_mod_incore_sb(mp,
+					error = xfs_icsb_modify_counters(mp,
 							XFS_SBS_FDBLOCKS,
 							-((int64_t)alen), (flags &
 							XFS_BMAPI_RSVBLOCKS));
 				}
 				if (!error) {
-					error = xfs_mod_incore_sb(mp,
+					error = xfs_icsb_modify_counters(mp,
 							XFS_SBS_FDBLOCKS,
 							-((int64_t)indlen), (flags &
 							XFS_BMAPI_RSVBLOCKS));
@@ -4710,7 +4546,7 @@ xfs_bmapi(
 							(int64_t)extsz, (flags &
 							XFS_BMAPI_RSVBLOCKS));
 					else if (error)
-						xfs_mod_incore_sb(mp,
+						xfs_icsb_modify_counters(mp,
 							XFS_SBS_FDBLOCKS,
 							(int64_t)alen, (flags &
 							XFS_BMAPI_RSVBLOCKS));
@@ -4831,7 +4667,7 @@ xfs_bmapi(
 					got.br_state = XFS_EXT_UNWRITTEN;
 			}
 			error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
-				firstblock, flist, &tmp_logflags, delta,
+				firstblock, flist, &tmp_logflags,
 				whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
 			logflags |= tmp_logflags;
 			if (error)
@@ -4912,8 +4748,12 @@ xfs_bmapi(
 		 * Check if writing previously allocated but
 		 * unwritten extents.
 		 */
-		if (wr && mval->br_state == XFS_EXT_UNWRITTEN &&
-		    ((flags & (XFS_BMAPI_PREALLOC|XFS_BMAPI_DELAY)) == 0)) {
+		if (wr &&
+		    ((mval->br_state == XFS_EXT_UNWRITTEN &&
+		      ((flags & (XFS_BMAPI_PREALLOC|XFS_BMAPI_DELAY)) == 0)) ||
+		     (mval->br_state == XFS_EXT_NORM &&
+		      ((flags & (XFS_BMAPI_PREALLOC|XFS_BMAPI_CONVERT)) ==
+				(XFS_BMAPI_PREALLOC|XFS_BMAPI_CONVERT))))) {
 			/*
 			 * Modify (by adding) the state flag, if writing.
 			 */
@@ -4925,9 +4765,11 @@ xfs_bmapi(
 					*firstblock;
 				cur->bc_private.b.flist = flist;
 			}
-			mval->br_state = XFS_EXT_NORM;
+			mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)
+						? XFS_EXT_NORM
+						: XFS_EXT_UNWRITTEN;
 			error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
-				firstblock, flist, &tmp_logflags, delta,
+				firstblock, flist, &tmp_logflags,
 				whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
 			logflags |= tmp_logflags;
 			if (error)
@@ -5017,14 +4859,6 @@ xfs_bmapi(
 	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
 	       XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
 	error = 0;
-	if (delta && delta->xed_startoff != NULLFILEOFF) {
-		/* A change was actually made.
-		 * Note that delta->xed_blockount is an offset at this
-		 * point and needs to be converted to a block count.
-		 */
-		ASSERT(delta->xed_blockcount > delta->xed_startoff);
-		delta->xed_blockcount -= delta->xed_startoff;
-	}
 error0:
 	/*
 	 * Log everything.  Do this after conversion, there's no point in
@@ -5136,8 +4970,6 @@ xfs_bunmapi(
 	xfs_fsblock_t		*firstblock,	/* first allocated block
 						   controls a.g. for allocs */
 	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
-	xfs_extdelta_t		*delta,		/* o: change made to incore
-						   extents */
 	int			*done)		/* set if not done yet */
 {
 	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
@@ -5196,10 +5028,7 @@ xfs_bunmapi(
 	bno = start + len - 1;
 	ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
 		&prev);
-	if (delta) {
-		delta->xed_startoff = NULLFILEOFF;
-		delta->xed_blockcount = 0;
-	}
+
 	/*
 	 * Check to see if the given block number is past the end of the
 	 * file, back up to the last block if so...
@@ -5297,7 +5126,7 @@ xfs_bunmapi(
 			}
 			del.br_state = XFS_EXT_UNWRITTEN;
 			error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
-				firstblock, flist, &logflags, delta,
+				firstblock, flist, &logflags,
 				XFS_DATA_FORK, 0);
 			if (error)
 				goto error0;
@@ -5352,7 +5181,7 @@ xfs_bunmapi(
 				prev.br_state = XFS_EXT_UNWRITTEN;
 				error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
 					&prev, firstblock, flist, &logflags,
-					delta, XFS_DATA_FORK, 0);
+					XFS_DATA_FORK, 0);
 				if (error)
 					goto error0;
 				goto nodelete;
@@ -5361,7 +5190,7 @@ xfs_bunmapi(
 				del.br_state = XFS_EXT_UNWRITTEN;
 				error = xfs_bmap_add_extent(ip, lastx, &cur,
 					&del, firstblock, flist, &logflags,
-					delta, XFS_DATA_FORK, 0);
+					XFS_DATA_FORK, 0);
 				if (error)
 					goto error0;
 				goto nodelete;
@@ -5381,7 +5210,7 @@ xfs_bunmapi(
 					ip, -((long)del.br_blockcount), 0,
 					XFS_QMOPT_RES_RTBLKS);
 			} else {
-				xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
+				xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
 						(int64_t)del.br_blockcount, rsvd);
 				(void)xfs_trans_reserve_quota_nblks(NULL,
 					ip, -((long)del.br_blockcount), 0,
@@ -5414,7 +5243,7 @@ xfs_bunmapi(
 			goto error0;
 		}
 		error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
-				&tmp_logflags, delta, whichfork, rsvd);
+				&tmp_logflags, whichfork, rsvd);
 		logflags |= tmp_logflags;
 		if (error)
 			goto error0;
@@ -5471,14 +5300,6 @@ nodelete:
 	ASSERT(ifp->if_ext_max ==
 	       XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
 	error = 0;
-	if (delta && delta->xed_startoff != NULLFILEOFF) {
-		/* A change was actually made.
-		 * Note that delta->xed_blockount is an offset at this
-		 * point and needs to be converted to a block count.
-		 */
-		ASSERT(delta->xed_blockcount > delta->xed_startoff);
-		delta->xed_blockcount -= delta->xed_startoff;
-	}
 error0:
 	/*
 	 * Log everything.  Do this after conversion, there's no point in
@@ -5605,28 +5426,6 @@ xfs_getbmap(
 		prealloced = 0;
 		fixlen = 1LL << 32;
 	} else {
-		/*
-		 * If the BMV_IF_NO_DMAPI_READ interface bit specified, do
-		 * not generate a DMAPI read event.  Otherwise, if the
-		 * DM_EVENT_READ bit is set for the file, generate a read
-		 * event in order that the DMAPI application may do its thing
-		 * before we return the extents.  Usually this means restoring
-		 * user file data to regions of the file that look like holes.
-		 *
-		 * The "old behavior" (from XFS_IOC_GETBMAP) is to not specify
-		 * BMV_IF_NO_DMAPI_READ so that read events are generated.
-		 * If this were not true, callers of ioctl(XFS_IOC_GETBMAP)
-		 * could misinterpret holes in a DMAPI file as true holes,
-		 * when in fact they may represent offline user data.
-		 */
-		if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) &&
-		    !(iflags & BMV_IF_NO_DMAPI_READ)) {
-			error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip,
-					      0, 0, 0, NULL);
-			if (error)
-				return XFS_ERROR(error);
-		}
-
 		if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
 		    ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
 		    ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
@@ -5713,7 +5512,7 @@ xfs_getbmap(
 		error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
 				  XFS_BB_TO_FSB(mp, bmv->bmv_length),
 				  bmapi_flags, NULL, 0, map, &nmap,
-				  NULL, NULL);
+				  NULL);
 		if (error)
 			goto out_free_map;
 		ASSERT(nmap <= subnex);
@@ -5744,12 +5543,24 @@ xfs_getbmap(
 					map[i].br_startblock))
 				goto out_free_map;
 
-			nexleft--;
 			bmv->bmv_offset =
 				out[cur_ext].bmv_offset +
 				out[cur_ext].bmv_length;
 			bmv->bmv_length =
 				max_t(__int64_t, 0, bmvend - bmv->bmv_offset);
+
+			/*
+			 * In case we don't want to return the hole,
+			 * don't increase cur_ext so that we can reuse
+			 * it in the next loop.
+			 */
+			if ((iflags & BMV_IF_NO_HOLES) &&
+			    map[i].br_startblock == HOLESTARTBLOCK) {
+				memset(&out[cur_ext], 0, sizeof(out[cur_ext]));
+				continue;
+			}
+
+			nexleft--;
 			bmv->bmv_entries++;
 			cur_ext++;
 		}
@@ -5859,66 +5670,34 @@ xfs_bmap_eof(
 }
 
 #ifdef DEBUG
-STATIC
-xfs_buf_t *
+STATIC struct xfs_buf *
 xfs_bmap_get_bp(
-	xfs_btree_cur_t         *cur,
+	struct xfs_btree_cur	*cur,
 	xfs_fsblock_t		bno)
 {
-	int i;
-	xfs_buf_t *bp;
+	struct xfs_log_item_desc *lidp;
+	int			i;
 
 	if (!cur)
-		return(NULL);
-
-	bp = NULL;
-	for(i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
-		bp = cur->bc_bufs[i];
-		if (!bp) break;
-		if (XFS_BUF_ADDR(bp) == bno)
-			break;	/* Found it */
-	}
-	if (i == XFS_BTREE_MAXLEVELS)
-		bp = NULL;
-
-	if (!bp) { /* Chase down all the log items to see if the bp is there */
-		xfs_log_item_chunk_t    *licp;
-		xfs_trans_t		*tp;
-
-		tp = cur->bc_tp;
-		licp = &tp->t_items;
-		while (!bp && licp != NULL) {
-			if (xfs_lic_are_all_free(licp)) {
-				licp = licp->lic_next;
-				continue;
-			}
-			for (i = 0; i < licp->lic_unused; i++) {
-				xfs_log_item_desc_t	*lidp;
-				xfs_log_item_t		*lip;
-				xfs_buf_log_item_t	*bip;
-				xfs_buf_t		*lbp;
-
-				if (xfs_lic_isfree(licp, i)) {
-					continue;
-				}
-
-				lidp = xfs_lic_slot(licp, i);
-				lip = lidp->lid_item;
-				if (lip->li_type != XFS_LI_BUF)
-					continue;
+		return NULL;
 
-				bip = (xfs_buf_log_item_t *)lip;
-				lbp = bip->bli_buf;
+	for (i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
+		if (!cur->bc_bufs[i])
+			break;
+		if (XFS_BUF_ADDR(cur->bc_bufs[i]) == bno)
+			return cur->bc_bufs[i];
+	}
 
-				if (XFS_BUF_ADDR(lbp) == bno) {
-					bp = lbp;
-					break; /* Found it */
-				}
-			}
-			licp = licp->lic_next;
-		}
+	/* Chase down all the log items to see if the bp is there */
+	list_for_each_entry(lidp, &cur->bc_tp->t_items, lid_trans) {
+		struct xfs_buf_log_item	*bip;
+		bip = (struct xfs_buf_log_item *)lidp->lid_item;
+		if (bip->bli_item.li_type == XFS_LI_BUF &&
+		    XFS_BUF_ADDR(bip->bli_buf) == bno)
+			return bip->bli_buf;
 	}
-	return(bp);
+
+	return NULL;
 }
 
 STATIC void
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index 419dafb9d87d..71ec9b6ecdfc 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -28,20 +28,6 @@ struct xfs_trans;
 extern kmem_zone_t	*xfs_bmap_free_item_zone;
 
 /*
- * DELTA: describe a change to the in-core extent list.
- *
- * Internally the use of xed_blockount is somewhat funky.
- * xed_blockcount contains an offset much of the time because this
- * makes merging changes easier.  (xfs_fileoff_t and xfs_filblks_t are
- * the same underlying type).
- */
-typedef struct xfs_extdelta
-{
-	xfs_fileoff_t		xed_startoff;	/* offset of range */
-	xfs_filblks_t		xed_blockcount;	/* blocks in range */
-} xfs_extdelta_t;
-
-/*
  * List of extents to be free "later".
  * The list is kept sorted on xbf_startblock.
  */
@@ -82,27 +68,25 @@ typedef	struct xfs_bmap_free
 #define XFS_BMAPI_DELAY		0x002	/* delayed write operation */
 #define XFS_BMAPI_ENTIRE	0x004	/* return entire extent, not trimmed */
 #define XFS_BMAPI_METADATA	0x008	/* mapping metadata not user data */
-#define XFS_BMAPI_EXACT		0x010	/* allocate only to spec'd bounds */
-#define XFS_BMAPI_ATTRFORK	0x020	/* use attribute fork not data */
-#define XFS_BMAPI_ASYNC		0x040	/* bunmapi xactions can be async */
-#define XFS_BMAPI_RSVBLOCKS	0x080	/* OK to alloc. reserved data blocks */
-#define	XFS_BMAPI_PREALLOC	0x100	/* preallocation op: unwritten space */
-#define	XFS_BMAPI_IGSTATE	0x200	/* Ignore state - */
+#define XFS_BMAPI_ATTRFORK	0x010	/* use attribute fork not data */
+#define XFS_BMAPI_RSVBLOCKS	0x020	/* OK to alloc. reserved data blocks */
+#define	XFS_BMAPI_PREALLOC	0x040	/* preallocation op: unwritten space */
+#define	XFS_BMAPI_IGSTATE	0x080	/* Ignore state - */
 					/* combine contig. space */
-#define	XFS_BMAPI_CONTIG	0x400	/* must allocate only one extent */
-/*	XFS_BMAPI_DIRECT_IO	0x800	*/
-#define XFS_BMAPI_CONVERT	0x1000	/* unwritten extent conversion - */
-					/* need write cache flushing and no */
-					/* additional allocation alignments */
+#define	XFS_BMAPI_CONTIG	0x100	/* must allocate only one extent */
+/*
+ * unwritten extent conversion - this needs write cache flushing and no additional
+ * allocation alignments. When specified with XFS_BMAPI_PREALLOC it converts
+ * from written to unwritten, otherwise convert from unwritten to written.
+ */
+#define XFS_BMAPI_CONVERT	0x200
 
 #define XFS_BMAPI_FLAGS \
 	{ XFS_BMAPI_WRITE,	"WRITE" }, \
 	{ XFS_BMAPI_DELAY,	"DELAY" }, \
 	{ XFS_BMAPI_ENTIRE,	"ENTIRE" }, \
 	{ XFS_BMAPI_METADATA,	"METADATA" }, \
-	{ XFS_BMAPI_EXACT,	"EXACT" }, \
 	{ XFS_BMAPI_ATTRFORK,	"ATTRFORK" }, \
-	{ XFS_BMAPI_ASYNC,	"ASYNC" }, \
 	{ XFS_BMAPI_RSVBLOCKS,	"RSVBLOCKS" }, \
 	{ XFS_BMAPI_PREALLOC,	"PREALLOC" }, \
 	{ XFS_BMAPI_IGSTATE,	"IGSTATE" }, \
@@ -310,9 +294,7 @@ xfs_bmapi(
 	xfs_extlen_t		total,		/* total blocks needed */
 	struct xfs_bmbt_irec	*mval,		/* output: map values */
 	int			*nmap,		/* i/o: mval size/count */
-	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
-	xfs_extdelta_t		*delta);	/* o: change made to incore
-						   extents */
+	xfs_bmap_free_t		*flist);	/* i/o: list extents to free */
 
 /*
  * Map file blocks to filesystem blocks, simple version.
@@ -346,8 +328,6 @@ xfs_bunmapi(
 	xfs_fsblock_t		*firstblock,	/* first allocated block
 						   controls a.g. for allocs */
 	xfs_bmap_free_t		*flist,		/* i/o: list extents to free */
-	xfs_extdelta_t		*delta,		/* o: change made to incore
-						   extents */
 	int			*done);		/* set if not done yet */
 
 /*
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 416e47e54b83..87d3c10b6954 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -24,21 +24,16 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_btree.h"
 #include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 96be4b0f2496..04f9cca8da7e 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -24,20 +24,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_btree.h"
 #include "xfs_btree_trace.h"
-#include "xfs_ialloc.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 
@@ -222,7 +217,7 @@ xfs_btree_del_cursor(
 	 */
 	for (i = 0; i < cur->bc_nlevels; i++) {
 		if (cur->bc_bufs[i])
-			xfs_btree_setbuf(cur, i, NULL);
+			xfs_trans_brelse(cur->bc_tp, cur->bc_bufs[i]);
 		else if (!error)
 			break;
 	}
@@ -661,7 +656,7 @@ xfs_btree_reada_bufl(
 
 	ASSERT(fsbno != NULLFSBLOCK);
 	d = XFS_FSB_TO_DADDR(mp, fsbno);
-	xfs_baread(mp->m_ddev_targp, d, mp->m_bsize * count);
+	xfs_buf_readahead(mp->m_ddev_targp, d, mp->m_bsize * count);
 }
 
 /*
@@ -681,7 +676,7 @@ xfs_btree_reada_bufs(
 	ASSERT(agno != NULLAGNUMBER);
 	ASSERT(agbno != NULLAGBLOCK);
 	d = XFS_AGB_TO_DADDR(mp, agno, agbno);
-	xfs_baread(mp->m_ddev_targp, d, mp->m_bsize * count);
+	xfs_buf_readahead(mp->m_ddev_targp, d, mp->m_bsize * count);
 }
 
 STATIC int
@@ -768,22 +763,19 @@ xfs_btree_readahead(
  * Set the buffer for level "lev" in the cursor to bp, releasing
  * any previous buffer.
  */
-void
+STATIC void
 xfs_btree_setbuf(
 	xfs_btree_cur_t		*cur,	/* btree cursor */
 	int			lev,	/* level in btree */
 	xfs_buf_t		*bp)	/* new buffer to set */
 {
 	struct xfs_btree_block	*b;	/* btree block */
-	xfs_buf_t		*obp;	/* old buffer pointer */
 
-	obp = cur->bc_bufs[lev];
-	if (obp)
-		xfs_trans_brelse(cur->bc_tp, obp);
+	if (cur->bc_bufs[lev])
+		xfs_trans_brelse(cur->bc_tp, cur->bc_bufs[lev]);
 	cur->bc_bufs[lev] = bp;
 	cur->bc_ra[lev] = 0;
-	if (!bp)
-		return;
+
 	b = XFS_BUF_TO_BLOCK(bp);
 	if (cur->bc_flags & XFS_BTREE_LONG_PTRS) {
 		if (be64_to_cpu(b->bb_u.l.bb_leftsib) == NULLDFSBNO)
@@ -3016,6 +3008,43 @@ out0:
 	return 0;
 }
 
+/*
+ * Kill the current root node, and replace it with it's only child node.
+ */
+STATIC int
+xfs_btree_kill_root(
+	struct xfs_btree_cur	*cur,
+	struct xfs_buf		*bp,
+	int			level,
+	union xfs_btree_ptr	*newroot)
+{
+	int			error;
+
+	XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
+	XFS_BTREE_STATS_INC(cur, killroot);
+
+	/*
+	 * Update the root pointer, decreasing the level by 1 and then
+	 * free the old root.
+	 */
+	cur->bc_ops->set_root(cur, newroot, -1);
+
+	error = cur->bc_ops->free_block(cur, bp);
+	if (error) {
+		XFS_BTREE_TRACE_CURSOR(cur, XBT_ERROR);
+		return error;
+	}
+
+	XFS_BTREE_STATS_INC(cur, free);
+
+	cur->bc_bufs[level] = NULL;
+	cur->bc_ra[level] = 0;
+	cur->bc_nlevels--;
+
+	XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
+	return 0;
+}
+
 STATIC int
 xfs_btree_dec_cursor(
 	struct xfs_btree_cur	*cur,
@@ -3200,7 +3229,7 @@ xfs_btree_delrec(
 			 * Make it the new root of the btree.
 			 */
 			pp = xfs_btree_ptr_addr(cur, 1, block);
-			error = cur->bc_ops->kill_root(cur, bp, level, pp);
+			error = xfs_btree_kill_root(cur, bp, level, pp);
 			if (error)
 				goto error0;
 		} else if (level > 0) {
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 7fa07062bdda..82fafc66bd1f 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -152,9 +152,7 @@ struct xfs_btree_ops {
 
 	/* update btree root pointer */
 	void	(*set_root)(struct xfs_btree_cur *cur,
-				union xfs_btree_ptr *nptr, int level_change);
-	int	(*kill_root)(struct xfs_btree_cur *cur, struct xfs_buf *bp,
-				int level, union xfs_btree_ptr *newroot);
+			    union xfs_btree_ptr *nptr, int level_change);
 
 	/* block allocation / freeing */
 	int	(*alloc_block)(struct xfs_btree_cur *cur,
@@ -399,16 +397,6 @@ xfs_btree_reada_bufs(
 	xfs_agblock_t		agbno,	/* allocation group block number */
 	xfs_extlen_t		count);	/* count of filesystem blocks */
 
-/*
- * Set the buffer for level "lev" in the cursor to bp, releasing
- * any previous buffer.
- */
-void
-xfs_btree_setbuf(
-	xfs_btree_cur_t		*cur,	/* btree cursor */
-	int			lev,	/* level in btree */
-	struct xfs_buf		*bp);	/* new buffer to set */
-
 
 /*
  * Common btree core entry points.
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 02a80984aa05..2686d0d54c5b 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -24,7 +24,6 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
@@ -34,6 +33,12 @@
 
 kmem_zone_t	*xfs_buf_item_zone;
 
+static inline struct xfs_buf_log_item *BUF_ITEM(struct xfs_log_item *lip)
+{
+	return container_of(lip, struct xfs_buf_log_item, bli_item);
+}
+
+
 #ifdef XFS_TRANS_DEBUG
 /*
  * This function uses an alternate strategy for tracking the bytes
@@ -151,12 +156,13 @@ STATIC void	xfs_buf_do_callbacks(xfs_buf_t *bp, xfs_log_item_t *lip);
  */
 STATIC uint
 xfs_buf_item_size(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	uint		nvecs;
-	int		next_bit;
-	int		last_bit;
-	xfs_buf_t	*bp;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf		*bp = bip->bli_buf;
+	uint			nvecs;
+	int			next_bit;
+	int			last_bit;
 
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 	if (bip->bli_flags & XFS_BLI_STALE) {
@@ -170,7 +176,6 @@ xfs_buf_item_size(
 		return 1;
 	}
 
-	bp = bip->bli_buf;
 	ASSERT(bip->bli_flags & XFS_BLI_LOGGED);
 	nvecs = 1;
 	last_bit = xfs_next_bit(bip->bli_format.blf_data_map,
@@ -219,13 +224,13 @@ xfs_buf_item_size(
  */
 STATIC void
 xfs_buf_item_format(
-	xfs_buf_log_item_t	*bip,
-	xfs_log_iovec_t		*log_vector)
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*vecp)
 {
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf	*bp = bip->bli_buf;
 	uint		base_size;
 	uint		nvecs;
-	xfs_log_iovec_t	*vecp;
-	xfs_buf_t	*bp;
 	int		first_bit;
 	int		last_bit;
 	int		next_bit;
@@ -235,8 +240,6 @@ xfs_buf_item_format(
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 	ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
 	       (bip->bli_flags & XFS_BLI_STALE));
-	bp = bip->bli_buf;
-	vecp = log_vector;
 
 	/*
 	 * The size of the base structure is the size of the
@@ -248,7 +251,7 @@ xfs_buf_item_format(
 	base_size =
 		(uint)(sizeof(xfs_buf_log_format_t) +
 		       ((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
-	vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
+	vecp->i_addr = &bip->bli_format;
 	vecp->i_len = base_size;
 	vecp->i_type = XLOG_REG_TYPE_BFORMAT;
 	vecp++;
@@ -263,7 +266,7 @@ xfs_buf_item_format(
 	 */
 	if (bip->bli_flags & XFS_BLI_INODE_BUF) {
 		if (!((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
-		      xfs_log_item_in_current_chkpt(&bip->bli_item)))
+		      xfs_log_item_in_current_chkpt(lip)))
 			bip->bli_format.blf_flags |= XFS_BLF_INODE_BUF;
 		bip->bli_flags &= ~XFS_BLI_INODE_BUF;
 	}
@@ -356,66 +359,90 @@ xfs_buf_item_format(
 
 /*
  * This is called to pin the buffer associated with the buf log item in memory
- * so it cannot be written out.  Simply call bpin() on the buffer to do this.
+ * so it cannot be written out.
  *
  * We also always take a reference to the buffer log item here so that the bli
  * is held while the item is pinned in memory. This means that we can
  * unconditionally drop the reference count a transaction holds when the
  * transaction is completed.
  */
-
 STATIC void
 xfs_buf_item_pin(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	xfs_buf_t	*bp;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
 
-	bp = bip->bli_buf;
-	ASSERT(XFS_BUF_ISBUSY(bp));
+	ASSERT(XFS_BUF_ISBUSY(bip->bli_buf));
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 	ASSERT((bip->bli_flags & XFS_BLI_LOGGED) ||
 	       (bip->bli_flags & XFS_BLI_STALE));
-	atomic_inc(&bip->bli_refcount);
+
 	trace_xfs_buf_item_pin(bip);
-	xfs_bpin(bp);
-}
 
+	atomic_inc(&bip->bli_refcount);
+	atomic_inc(&bip->bli_buf->b_pin_count);
+}
 
 /*
  * This is called to unpin the buffer associated with the buf log
  * item which was previously pinned with a call to xfs_buf_item_pin().
- * Just call bunpin() on the buffer to do this.
  *
  * Also drop the reference to the buf item for the current transaction.
  * If the XFS_BLI_STALE flag is set and we are the last reference,
  * then free up the buf log item and unlock the buffer.
+ *
+ * If the remove flag is set we are called from uncommit in the
+ * forced-shutdown path.  If that is true and the reference count on
+ * the log item is going to drop to zero we need to free the item's
+ * descriptor in the transaction.
  */
 STATIC void
 xfs_buf_item_unpin(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	struct xfs_ail	*ailp;
-	xfs_buf_t	*bp;
-	int		freed;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	xfs_buf_t	*bp = bip->bli_buf;
+	struct xfs_ail	*ailp = lip->li_ailp;
 	int		stale = bip->bli_flags & XFS_BLI_STALE;
+	int		freed;
 
-	bp = bip->bli_buf;
-	ASSERT(bp != NULL);
 	ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip);
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
 	trace_xfs_buf_item_unpin(bip);
 
 	freed = atomic_dec_and_test(&bip->bli_refcount);
-	ailp = bip->bli_item.li_ailp;
-	xfs_bunpin(bp);
+
+	if (atomic_dec_and_test(&bp->b_pin_count))
+		wake_up_all(&bp->b_waiters);
+
 	if (freed && stale) {
 		ASSERT(bip->bli_flags & XFS_BLI_STALE);
 		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
 		ASSERT(!(XFS_BUF_ISDELAYWRITE(bp)));
 		ASSERT(XFS_BUF_ISSTALE(bp));
 		ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL);
+
 		trace_xfs_buf_item_unpin_stale(bip);
 
+		if (remove) {
+			/*
+			 * We have to remove the log item from the transaction
+			 * as we are about to release our reference to the
+			 * buffer.  If we don't, the unlock that occurs later
+			 * in xfs_trans_uncommit() will ry to reference the
+			 * buffer which we no longer have a hold on.
+			 */
+			xfs_trans_del_item(lip);
+
+			/*
+			 * Since the transaction no longer refers to the buffer,
+			 * the buffer should no longer refer to the transaction.
+			 */
+			XFS_BUF_SET_FSPRIVATE2(bp, NULL);
+		}
+
 		/*
 		 * If we get called here because of an IO error, we may
 		 * or may not have the item on the AIL. xfs_trans_ail_delete()
@@ -437,48 +464,6 @@ xfs_buf_item_unpin(
 }
 
 /*
- * this is called from uncommit in the forced-shutdown path.
- * we need to check to see if the reference count on the log item
- * is going to drop to zero.  If so, unpin will free the log item
- * so we need to free the item's descriptor (that points to the item)
- * in the transaction.
- */
-STATIC void
-xfs_buf_item_unpin_remove(
-	xfs_buf_log_item_t	*bip,
-	xfs_trans_t		*tp)
-{
-	/* will xfs_buf_item_unpin() call xfs_buf_item_relse()? */
-	if ((atomic_read(&bip->bli_refcount) == 1) &&
-	    (bip->bli_flags & XFS_BLI_STALE)) {
-		/*
-		 * yes -- We can safely do some work here and then call
-		 * buf_item_unpin to do the rest because we are
-		 * are holding the buffer locked so no one else will be
-		 * able to bump up the refcount. We have to remove the
-		 * log item from the transaction as we are about to release
-		 * our reference to the buffer. If we don't, the unlock that
-		 * occurs later in the xfs_trans_uncommit() will try to
-		 * reference the buffer which we no longer have a hold on.
-		 */
-		struct xfs_log_item_desc *lidp;
-
-		ASSERT(XFS_BUF_VALUSEMA(bip->bli_buf) <= 0);
-		trace_xfs_buf_item_unpin_stale(bip);
-
-		lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)bip);
-		xfs_trans_free_item(tp, lidp);
-
-		/*
-		 * Since the transaction no longer refers to the buffer, the
-		 * buffer should no longer refer to the transaction.
-		 */
-		XFS_BUF_SET_FSPRIVATE2(bip->bli_buf, NULL);
-	}
-	xfs_buf_item_unpin(bip);
-}
-
-/*
  * This is called to attempt to lock the buffer associated with this
  * buf log item.  Don't sleep on the buffer lock.  If we can't get
  * the lock right away, return 0.  If we can get the lock, take a
@@ -488,11 +473,11 @@ xfs_buf_item_unpin_remove(
  */
 STATIC uint
 xfs_buf_item_trylock(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	xfs_buf_t	*bp;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf		*bp = bip->bli_buf;
 
-	bp = bip->bli_buf;
 	if (XFS_BUF_ISPINNED(bp))
 		return XFS_ITEM_PINNED;
 	if (!XFS_BUF_CPSEMA(bp))
@@ -529,13 +514,12 @@ xfs_buf_item_trylock(
  */
 STATIC void
 xfs_buf_item_unlock(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	int		aborted;
-	xfs_buf_t	*bp;
-	uint		hold;
-
-	bp = bip->bli_buf;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf		*bp = bip->bli_buf;
+	int			aborted;
+	uint			hold;
 
 	/* Clear the buffer's association with this transaction. */
 	XFS_BUF_SET_FSPRIVATE2(bp, NULL);
@@ -546,7 +530,7 @@ xfs_buf_item_unlock(
 	 * (cancelled) buffers at unpin time, but we'll never go through the
 	 * pin/unpin cycle if we abort inside commit.
 	 */
-	aborted = (bip->bli_item.li_flags & XFS_LI_ABORTED) != 0;
+	aborted = (lip->li_flags & XFS_LI_ABORTED) != 0;
 
 	/*
 	 * Before possibly freeing the buf item, determine if we should
@@ -607,16 +591,16 @@ xfs_buf_item_unlock(
  */
 STATIC xfs_lsn_t
 xfs_buf_item_committed(
-	xfs_buf_log_item_t	*bip,
+	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn)
 {
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+
 	trace_xfs_buf_item_committed(bip);
 
-	if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
-	    (bip->bli_item.li_lsn != 0)) {
-		return bip->bli_item.li_lsn;
-	}
-	return (lsn);
+	if ((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) && lip->li_lsn != 0)
+		return lip->li_lsn;
+	return lsn;
 }
 
 /*
@@ -626,15 +610,16 @@ xfs_buf_item_committed(
  */
 STATIC void
 xfs_buf_item_push(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	xfs_buf_t	*bp;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf		*bp = bip->bli_buf;
 
 	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(!XFS_BUF_ISDELAYWRITE(bp));
+
 	trace_xfs_buf_item_push(bip);
 
-	bp = bip->bli_buf;
-	ASSERT(!XFS_BUF_ISDELAYWRITE(bp));
 	xfs_buf_relse(bp);
 }
 
@@ -646,22 +631,24 @@ xfs_buf_item_push(
  */
 STATIC void
 xfs_buf_item_pushbuf(
-	xfs_buf_log_item_t	*bip)
+	struct xfs_log_item	*lip)
 {
-	xfs_buf_t	*bp;
+	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
+	struct xfs_buf		*bp = bip->bli_buf;
 
 	ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+	ASSERT(XFS_BUF_ISDELAYWRITE(bp));
+
 	trace_xfs_buf_item_pushbuf(bip);
 
-	bp = bip->bli_buf;
-	ASSERT(XFS_BUF_ISDELAYWRITE(bp));
 	xfs_buf_delwri_promote(bp);
 	xfs_buf_relse(bp);
 }
 
-/* ARGSUSED */
 STATIC void
-xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
+xfs_buf_item_committing(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		commit_lsn)
 {
 }
 
@@ -669,21 +656,16 @@ xfs_buf_item_committing(xfs_buf_log_item_t *bip, xfs_lsn_t commit_lsn)
  * This is the ops vector shared by all buf log items.
  */
 static struct xfs_item_ops xfs_buf_item_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_buf_item_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_buf_item_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_buf_item_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_buf_item_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
-					xfs_buf_item_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_buf_item_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_buf_item_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_buf_item_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_buf_item_push,
-	.iop_pushbuf	= (void(*)(xfs_log_item_t*))xfs_buf_item_pushbuf,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_buf_item_committing
+	.iop_size	= xfs_buf_item_size,
+	.iop_format	= xfs_buf_item_format,
+	.iop_pin	= xfs_buf_item_pin,
+	.iop_unpin	= xfs_buf_item_unpin,
+	.iop_trylock	= xfs_buf_item_trylock,
+	.iop_unlock	= xfs_buf_item_unlock,
+	.iop_committed	= xfs_buf_item_committed,
+	.iop_push	= xfs_buf_item_push,
+	.iop_pushbuf	= xfs_buf_item_pushbuf,
+	.iop_committing = xfs_buf_item_committing
 };
 
 
@@ -710,9 +692,7 @@ xfs_buf_item_init(
 	 * the first.  If we do already have one, there is
 	 * nothing to do here so return.
 	 */
-	if (bp->b_mount != mp)
-		bp->b_mount = mp;
-	XFS_BUF_SET_BDSTRAT_FUNC(bp, xfs_bdstrat_cb);
+	ASSERT(bp->b_target->bt_mount == mp);
 	if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
 		lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
 		if (lip->li_type == XFS_LI_BUF) {
@@ -993,7 +973,7 @@ xfs_buf_iodone_callbacks(
 			xfs_buf_do_callbacks(bp, lip);
 			XFS_BUF_SET_FSPRIVATE(bp, NULL);
 			XFS_BUF_CLR_IODONE_FUNC(bp);
-			xfs_biodone(bp);
+			xfs_buf_ioend(bp, 0);
 			return;
 		}
 
@@ -1052,7 +1032,7 @@ xfs_buf_iodone_callbacks(
 	xfs_buf_do_callbacks(bp, lip);
 	XFS_BUF_SET_FSPRIVATE(bp, NULL);
 	XFS_BUF_CLR_IODONE_FUNC(bp);
-	xfs_biodone(bp);
+	xfs_buf_ioend(bp, 0);
 }
 
 /*
@@ -1098,15 +1078,14 @@ xfs_buf_error_relse(
  * It is called by xfs_buf_iodone_callbacks() above which will take
  * care of cleaning up the buffer itself.
  */
-/* ARGSUSED */
 void
 xfs_buf_iodone(
-	xfs_buf_t		*bp,
-	xfs_buf_log_item_t	*bip)
+	struct xfs_buf		*bp,
+	struct xfs_log_item	*lip)
 {
-	struct xfs_ail		*ailp = bip->bli_item.li_ailp;
+	struct xfs_ail		*ailp = lip->li_ailp;
 
-	ASSERT(bip->bli_buf == bp);
+	ASSERT(BUF_ITEM(lip)->bli_buf == bp);
 
 	xfs_buf_rele(bp);
 
@@ -1120,6 +1099,6 @@ xfs_buf_iodone(
 	 * Either way, AIL is useless if we're forcing a shutdown.
 	 */
 	spin_lock(&ailp->xa_lock);
-	xfs_trans_ail_delete(ailp, (xfs_log_item_t *)bip);
-	xfs_buf_item_free(bip);
+	xfs_trans_ail_delete(ailp, lip);
+	xfs_buf_item_free(BUF_ITEM(lip));
 }
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index f20bb472d582..0e2ed43f16c7 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -124,7 +124,7 @@ void	xfs_buf_attach_iodone(struct xfs_buf *,
 			      void(*)(struct xfs_buf *, xfs_log_item_t *),
 			      xfs_log_item_t *);
 void	xfs_buf_iodone_callbacks(struct xfs_buf *);
-void	xfs_buf_iodone(struct xfs_buf *, xfs_buf_log_item_t *);
+void	xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
 
 #ifdef XFS_TRANS_DEBUG
 void
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 0ca556b4bf31..1c00bedb3175 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -25,19 +25,14 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
-#include "xfs_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
@@ -581,16 +576,14 @@ xfs_da_node_add(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
 	xfs_da_intnode_t *node;
 	xfs_da_node_entry_t *btree;
 	int tmp;
-	xfs_mount_t *mp;
 
 	node = oldblk->bp->data;
-	mp = state->mp;
 	ASSERT(be16_to_cpu(node->hdr.info.magic) == XFS_DA_NODE_MAGIC);
 	ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count)));
 	ASSERT(newblk->blkno != 0);
 	if (state->args->whichfork == XFS_DATA_FORK)
-		ASSERT(newblk->blkno >= mp->m_dirleafblk &&
-		       newblk->blkno < mp->m_dirfreeblk);
+		ASSERT(newblk->blkno >= state->mp->m_dirleafblk &&
+		       newblk->blkno < state->mp->m_dirfreeblk);
 
 	/*
 	 * We may need to make some room before we insert the new node.
@@ -1601,7 +1594,7 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
 			xfs_bmapi_aflag(w)|XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|
 			XFS_BMAPI_CONTIG,
 			args->firstblock, args->total, &map, &nmap,
-			args->flist, NULL))) {
+			args->flist))) {
 		return error;
 	}
 	ASSERT(nmap <= 1);
@@ -1622,8 +1615,7 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
 					xfs_bmapi_aflag(w)|XFS_BMAPI_WRITE|
 					XFS_BMAPI_METADATA,
 					args->firstblock, args->total,
-					&mapp[mapi], &nmap, args->flist,
-					NULL))) {
+					&mapp[mapi], &nmap, args->flist))) {
 				kmem_free(mapp);
 				return error;
 			}
@@ -1884,7 +1876,7 @@ xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
 		 */
 		if ((error = xfs_bunmapi(tp, dp, dead_blkno, count,
 				xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
-				0, args->firstblock, args->flist, NULL,
+				0, args->firstblock, args->flist,
 				&done)) == ENOSPC) {
 			if (w != XFS_DATA_FORK)
 				break;
@@ -1989,7 +1981,7 @@ xfs_da_do_buf(
 					nfsb,
 					XFS_BMAPI_METADATA |
 						xfs_bmapi_aflag(whichfork),
-					NULL, 0, mapp, &nmap, NULL, NULL)))
+					NULL, 0, mapp, &nmap, NULL)))
 				goto exit0;
 		}
 	} else {
@@ -2050,7 +2042,7 @@ xfs_da_do_buf(
 				mappedbno, nmapped, 0, &bp);
 			break;
 		case 3:
-			xfs_baread(mp->m_ddev_targp, mappedbno, nmapped);
+			xfs_buf_readahead(mp->m_ddev_targp, mappedbno, nmapped);
 			error = 0;
 			bp = NULL;
 			break;
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 7f159d2a429a..3b9582c60a22 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -24,24 +24,15 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_dfrag.h"
 #include "xfs_error.h"
-#include "xfs_rw.h"
 #include "xfs_vnodeops.h"
 #include "xfs_trace.h"
 
@@ -425,11 +416,8 @@ xfs_swap_extents(
 	}
 
 
-	IHOLD(ip);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
-	IHOLD(tip);
-	xfs_trans_ijoin(tp, tip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, tip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
 
 	xfs_trans_log_inode(tp, ip,  ilf_fields);
 	xfs_trans_log_inode(tp, tip, tilf_fields);
diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h
index e5b153b2e6a3..dffba9ba0db6 100644
--- a/fs/xfs/xfs_dinode.h
+++ b/fs/xfs/xfs_dinode.h
@@ -49,8 +49,9 @@ typedef struct xfs_dinode {
 	__be32		di_uid;		/* owner's user id */
 	__be32		di_gid;		/* owner's group id */
 	__be32		di_nlink;	/* number of links to file */
-	__be16		di_projid;	/* owner's project id */
-	__u8		di_pad[8];	/* unused, zeroed space */
+	__be16		di_projid_lo;	/* lower part of owner's project id */
+	__be16		di_projid_hi;	/* higher part owner's project id */
+	__u8		di_pad[6];	/* unused, zeroed space */
 	__be16		di_flushiter;	/* incremented on flush */
 	xfs_timestamp_t	di_atime;	/* time last accessed */
 	xfs_timestamp_t	di_mtime;	/* time last modified */
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 42520f041265..a1321bc7f192 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -25,13 +25,11 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
@@ -382,7 +380,7 @@ xfs_readdir(
 	int		rval;		/* return value */
 	int		v;		/* type-checking value */
 
-	xfs_itrace_entry(dp);
+	trace_xfs_readdir(dp);
 
 	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
 		return XFS_ERROR(EIO);
@@ -549,7 +547,7 @@ xfs_dir2_grow_inode(
 	if ((error = xfs_bmapi(tp, dp, bno, count,
 			XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG,
 			args->firstblock, args->total, &map, &nmap,
-			args->flist, NULL)))
+			args->flist)))
 		return error;
 	ASSERT(nmap <= 1);
 	if (nmap == 1) {
@@ -581,8 +579,7 @@ xfs_dir2_grow_inode(
 			if ((error = xfs_bmapi(tp, dp, b, c,
 					XFS_BMAPI_WRITE|XFS_BMAPI_METADATA,
 					args->firstblock, args->total,
-					&mapp[mapi], &nmap, args->flist,
-					NULL))) {
+					&mapp[mapi], &nmap, args->flist))) {
 				kmem_free(mapp);
 				return error;
 			}
@@ -715,7 +712,7 @@ xfs_dir2_shrink_inode(
 	 */
 	if ((error = xfs_bunmapi(tp, dp, da, mp->m_dirblkfsbs,
 			XFS_BMAPI_METADATA, 0, args->firstblock, args->flist,
-			NULL, &done))) {
+			&done))) {
 		/*
 		 * ENOSPC actually can happen if we're in a removename with
 		 * no space reservation, and the resulting block removal
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 779a267b0a84..580d99cef9e7 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -24,12 +24,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
@@ -1073,10 +1071,10 @@ xfs_dir2_sf_to_block(
 	 */
 
 	buf_len = dp->i_df.if_bytes;
-	buf = kmem_alloc(dp->i_df.if_bytes, KM_SLEEP);
+	buf = kmem_alloc(buf_len, KM_SLEEP);
 
-	memcpy(buf, sfp, dp->i_df.if_bytes);
-	xfs_idata_realloc(dp, -dp->i_df.if_bytes, XFS_DATA_FORK);
+	memcpy(buf, sfp, buf_len);
+	xfs_idata_realloc(dp, -buf_len, XFS_DATA_FORK);
 	dp->i_d.di_size = 0;
 	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
 	/*
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 498f8d694330..921595b84f5b 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -24,12 +24,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_dir2_data.h"
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index e2d89854ec9e..ae891223be90 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -25,11 +25,9 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dir2_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
@@ -875,7 +873,7 @@ xfs_dir2_leaf_getdents(
 					xfs_dir2_byte_to_da(mp,
 						XFS_DIR2_LEAF_OFFSET) - map_off,
 					XFS_BMAPI_METADATA, NULL, 0,
-					&map[map_valid], &nmap, NULL, NULL);
+					&map[map_valid], &nmap, NULL);
 				/*
 				 * Don't know if we should ignore this or
 				 * try to return an error.
@@ -963,7 +961,7 @@ xfs_dir2_leaf_getdents(
 				if (i > ra_current &&
 				    map[ra_index].br_blockcount >=
 				    mp->m_dirblkfsbs) {
-					xfs_baread(mp->m_ddev_targp,
+					xfs_buf_readahead(mp->m_ddev_targp,
 						XFS_FSB_TO_DADDR(mp,
 						   map[ra_index].br_startblock +
 						   ra_offset),
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 78fc4d9ae756..f9a0864b696a 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -24,12 +24,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index c1a5945d463a..b1bae6b1eed9 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -24,12 +24,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
deleted file mode 100644
index 2813cdd72375..000000000000
--- a/fs/xfs/xfs_dmapi.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_DMAPI_H__
-#define __XFS_DMAPI_H__
-
-/*	Values used to define the on-disk version of dm_attrname_t. All
- *	on-disk attribute names start with the 8-byte string "SGI_DMI_".
- *
- *      In the on-disk inode, DMAPI attribute names consist of the user-provided
- *      name with the DMATTR_PREFIXSTRING pre-pended.  This string must NEVER be
- *      changed.
- */
-
-#define DMATTR_PREFIXLEN	8
-#define DMATTR_PREFIXSTRING	"SGI_DMI_"
-
-typedef enum {
-	DM_EVENT_INVALID	= -1,
-	DM_EVENT_CANCEL		= 0,		/* not supported */
-	DM_EVENT_MOUNT		= 1,
-	DM_EVENT_PREUNMOUNT	= 2,
-	DM_EVENT_UNMOUNT	= 3,
-	DM_EVENT_DEBUT		= 4,		/* not supported */
-	DM_EVENT_CREATE		= 5,
-	DM_EVENT_CLOSE		= 6,		/* not supported */
-	DM_EVENT_POSTCREATE	= 7,
-	DM_EVENT_REMOVE		= 8,
-	DM_EVENT_POSTREMOVE	= 9,
-	DM_EVENT_RENAME		= 10,
-	DM_EVENT_POSTRENAME	= 11,
-	DM_EVENT_LINK		= 12,
-	DM_EVENT_POSTLINK	= 13,
-	DM_EVENT_SYMLINK	= 14,
-	DM_EVENT_POSTSYMLINK	= 15,
-	DM_EVENT_READ		= 16,
-	DM_EVENT_WRITE		= 17,
-	DM_EVENT_TRUNCATE	= 18,
-	DM_EVENT_ATTRIBUTE	= 19,
-	DM_EVENT_DESTROY	= 20,
-	DM_EVENT_NOSPACE	= 21,
-	DM_EVENT_USER		= 22,
-	DM_EVENT_MAX		= 23
-} dm_eventtype_t;
-#define HAVE_DM_EVENTTYPE_T
-
-typedef enum {
-	DM_RIGHT_NULL,
-	DM_RIGHT_SHARED,
-	DM_RIGHT_EXCL
-} dm_right_t;
-#define HAVE_DM_RIGHT_T
-
-/* Defines for determining if an event message should be sent. */
-#ifdef HAVE_DMAPI
-#define	DM_EVENT_ENABLED(ip, event) ( \
-	unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \
-		( ((ip)->i_d.di_dmevmask & (1 << event)) || \
-		  ((ip)->i_mount->m_dmevmask & (1 << event)) ) \
-	)
-#else
-#define DM_EVENT_ENABLED(ip, event)	(0)
-#endif
-
-#define DM_XFS_VALID_FS_EVENTS		( \
-	(1 << DM_EVENT_PREUNMOUNT)	| \
-	(1 << DM_EVENT_UNMOUNT)		| \
-	(1 << DM_EVENT_NOSPACE)		| \
-	(1 << DM_EVENT_DEBUT)		| \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
-   a regular file or a symlink.  These events are persistent.
-*/
-
-#define	DM_XFS_VALID_FILE_EVENTS	( \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
-   a directory.  These events are persistent.
-*/
-
-#define	DM_XFS_VALID_DIRECTORY_EVENTS	( \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events supported by the XFS filesystem. */
-#define	DM_XFS_SUPPORTED_EVENTS		( \
-	(1 << DM_EVENT_MOUNT)		| \
-	(1 << DM_EVENT_PREUNMOUNT)	| \
-	(1 << DM_EVENT_UNMOUNT)		| \
-	(1 << DM_EVENT_NOSPACE)		| \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_READ)		| \
-	(1 << DM_EVENT_WRITE)		| \
-	(1 << DM_EVENT_TRUNCATE)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-
-/*
- *	Definitions used for the flags field on dm_send_*_event().
- */
-
-#define DM_FLAGS_NDELAY		0x001	/* return EAGAIN after dm_pending() */
-#define DM_FLAGS_UNWANTED	0x002	/* event not in fsys dm_eventset_t */
-#define DM_FLAGS_IMUX		0x004	/* thread holds i_mutex */
-#define DM_FLAGS_IALLOCSEM_RD	0x010	/* thread holds i_alloc_sem rd */
-#define DM_FLAGS_IALLOCSEM_WR	0x020	/* thread holds i_alloc_sem wr */
-
-/*
- *	Pull in platform specific event flags defines
- */
-#include "xfs_dmapi_priv.h"
-
-/*
- *	Macros to turn caller specified delay/block flags into
- *	dm_send_xxxx_event flag DM_FLAGS_NDELAY.
- */
-
-#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
-			DM_FLAGS_NDELAY : 0)
-#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
-
-#endif  /* __XFS_DMAPI_H__ */
diff --git a/fs/xfs/xfs_dmops.c b/fs/xfs/xfs_dmops.c
deleted file mode 100644
index e71e2581c0c3..000000000000
--- a/fs/xfs/xfs_dmops.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_dmapi.h"
-#include "xfs_inum.h"
-#include "xfs_ag.h"
-#include "xfs_mount.h"
-
-
-static struct xfs_dmops xfs_dmcore_stub = {
-	.xfs_send_data		= (xfs_send_data_t)fs_nosys,
-	.xfs_send_mmap		= (xfs_send_mmap_t)fs_noerr,
-	.xfs_send_destroy	= (xfs_send_destroy_t)fs_nosys,
-	.xfs_send_namesp	= (xfs_send_namesp_t)fs_nosys,
-	.xfs_send_mount		= (xfs_send_mount_t)fs_nosys,
-	.xfs_send_unmount	= (xfs_send_unmount_t)fs_noerr,
-};
-
-int
-xfs_dmops_get(struct xfs_mount *mp)
-{
-	if (mp->m_flags & XFS_MOUNT_DMAPI) {
-		cmn_err(CE_WARN,
-			"XFS: dmapi support not available in this kernel.");
-		return EINVAL;
-	}
-
-	mp->m_dm_ops = &xfs_dmcore_stub;
-	return 0;
-}
-
-void
-xfs_dmops_put(struct xfs_mount *mp)
-{
-}
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 047b8a8e5c29..ed9990267661 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -23,12 +23,8 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_utils.h"
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index 409fe81585fd..a55e687bf562 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -24,7 +24,6 @@
 #include "xfs_buf_item.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_trans_priv.h"
 #include "xfs_extfree_item.h"
@@ -33,18 +32,19 @@
 kmem_zone_t	*xfs_efi_zone;
 kmem_zone_t	*xfs_efd_zone;
 
-STATIC void	xfs_efi_item_unlock(xfs_efi_log_item_t *);
+static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)
+{
+	return container_of(lip, struct xfs_efi_log_item, efi_item);
+}
 
 void
-xfs_efi_item_free(xfs_efi_log_item_t *efip)
+xfs_efi_item_free(
+	struct xfs_efi_log_item	*efip)
 {
-	int nexts = efip->efi_format.efi_nextents;
-
-	if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
+	if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS)
 		kmem_free(efip);
-	} else {
+	else
 		kmem_zone_free(xfs_efi_zone, efip);
-	}
 }
 
 /*
@@ -52,9 +52,9 @@ xfs_efi_item_free(xfs_efi_log_item_t *efip)
  * We only need 1 iovec for an efi item.  It just logs the efi_log_format
  * structure.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_efi_item_size(xfs_efi_log_item_t *efip)
+xfs_efi_item_size(
+	struct xfs_log_item	*lip)
 {
 	return 1;
 }
@@ -67,10 +67,12 @@ xfs_efi_item_size(xfs_efi_log_item_t *efip)
  * slots in the efi item have been filled.
  */
 STATIC void
-xfs_efi_item_format(xfs_efi_log_item_t	*efip,
-		    xfs_log_iovec_t	*log_vector)
+xfs_efi_item_format(
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*log_vector)
 {
-	uint	size;
+	struct xfs_efi_log_item	*efip = EFI_ITEM(lip);
+	uint			size;
 
 	ASSERT(efip->efi_next_extent == efip->efi_format.efi_nextents);
 
@@ -80,7 +82,7 @@ xfs_efi_item_format(xfs_efi_log_item_t	*efip,
 	size += (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t);
 	efip->efi_format.efi_size = 1;
 
-	log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
+	log_vector->i_addr = &efip->efi_format;
 	log_vector->i_len = size;
 	log_vector->i_type = XLOG_REG_TYPE_EFI_FORMAT;
 	ASSERT(size >= sizeof(xfs_efi_log_format_t));
@@ -90,60 +92,33 @@ xfs_efi_item_format(xfs_efi_log_item_t	*efip,
 /*
  * Pinning has no meaning for an efi item, so just return.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efi_item_pin(xfs_efi_log_item_t *efip)
+xfs_efi_item_pin(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
-
 /*
  * While EFIs cannot really be pinned, the unpin operation is the
  * last place at which the EFI is manipulated during a transaction.
  * Here we coordinate with xfs_efi_cancel() to determine who gets to
  * free the EFI.
  */
-/*ARGSUSED*/
-STATIC void
-xfs_efi_item_unpin(xfs_efi_log_item_t *efip)
-{
-	struct xfs_ail		*ailp = efip->efi_item.li_ailp;
-
-	spin_lock(&ailp->xa_lock);
-	if (efip->efi_flags & XFS_EFI_CANCELED) {
-		/* xfs_trans_ail_delete() drops the AIL lock. */
-		xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
-		xfs_efi_item_free(efip);
-	} else {
-		efip->efi_flags |= XFS_EFI_COMMITTED;
-		spin_unlock(&ailp->xa_lock);
-	}
-}
-
-/*
- * like unpin only we have to also clear the xaction descriptor
- * pointing the log item if we free the item.  This routine duplicates
- * unpin because efi_flags is protected by the AIL lock.  Freeing
- * the descriptor and then calling unpin would force us to drop the AIL
- * lock which would open up a race condition.
- */
 STATIC void
-xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
+xfs_efi_item_unpin(
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	struct xfs_ail		*ailp = efip->efi_item.li_ailp;
-	xfs_log_item_desc_t	*lidp;
+	struct xfs_efi_log_item	*efip = EFI_ITEM(lip);
+	struct xfs_ail		*ailp = lip->li_ailp;
 
 	spin_lock(&ailp->xa_lock);
 	if (efip->efi_flags & XFS_EFI_CANCELED) {
-		/*
-		 * free the xaction descriptor pointing to this item
-		 */
-		lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
-		xfs_trans_free_item(tp, lidp);
+		if (remove)
+			xfs_trans_del_item(lip);
 
 		/* xfs_trans_ail_delete() drops the AIL lock. */
-		xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
+		xfs_trans_ail_delete(ailp, lip);
 		xfs_efi_item_free(efip);
 	} else {
 		efip->efi_flags |= XFS_EFI_COMMITTED;
@@ -158,9 +133,9 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
  * XFS_ITEM_PINNED so that the caller will eventually flush the log.
  * This should help in getting the EFI out of the AIL.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_efi_item_trylock(xfs_efi_log_item_t *efip)
+xfs_efi_item_trylock(
+	struct xfs_log_item	*lip)
 {
 	return XFS_ITEM_PINNED;
 }
@@ -168,13 +143,12 @@ xfs_efi_item_trylock(xfs_efi_log_item_t *efip)
 /*
  * Efi items have no locking, so just return.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
+xfs_efi_item_unlock(
+	struct xfs_log_item	*lip)
 {
-	if (efip->efi_item.li_flags & XFS_LI_ABORTED)
-		xfs_efi_item_free(efip);
-	return;
+	if (lip->li_flags & XFS_LI_ABORTED)
+		xfs_efi_item_free(EFI_ITEM(lip));
 }
 
 /*
@@ -183,9 +157,10 @@ xfs_efi_item_unlock(xfs_efi_log_item_t *efip)
  * flag is not paid any attention here.  Checking for that is delayed
  * until the EFI is unpinned.
  */
-/*ARGSUSED*/
 STATIC xfs_lsn_t
-xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efi_item_committed(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
 	return lsn;
 }
@@ -195,11 +170,10 @@ xfs_efi_item_committed(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
  * stuck waiting for all of its corresponding efd items to be
  * committed to disk.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efi_item_push(xfs_efi_log_item_t *efip)
+xfs_efi_item_push(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
 /*
@@ -209,61 +183,55 @@ xfs_efi_item_push(xfs_efi_log_item_t *efip)
  * example, for inodes, the inode is locked throughout the extent freeing
  * so the dependency should be recorded there.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efi_item_committing(xfs_efi_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efi_item_committing(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
-	return;
 }
 
 /*
  * This is the ops vector shared by all efi log items.
  */
 static struct xfs_item_ops xfs_efi_item_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efi_item_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_efi_item_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_efi_item_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_efi_item_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *))
-					xfs_efi_item_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_efi_item_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_efi_item_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_efi_item_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_efi_item_push,
-	.iop_pushbuf	= NULL,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_efi_item_committing
+	.iop_size	= xfs_efi_item_size,
+	.iop_format	= xfs_efi_item_format,
+	.iop_pin	= xfs_efi_item_pin,
+	.iop_unpin	= xfs_efi_item_unpin,
+	.iop_trylock	= xfs_efi_item_trylock,
+	.iop_unlock	= xfs_efi_item_unlock,
+	.iop_committed	= xfs_efi_item_committed,
+	.iop_push	= xfs_efi_item_push,
+	.iop_committing = xfs_efi_item_committing
 };
 
 
 /*
  * Allocate and initialize an efi item with the given number of extents.
  */
-xfs_efi_log_item_t *
-xfs_efi_init(xfs_mount_t	*mp,
-	     uint		nextents)
+struct xfs_efi_log_item *
+xfs_efi_init(
+	struct xfs_mount	*mp,
+	uint			nextents)
 
 {
-	xfs_efi_log_item_t	*efip;
+	struct xfs_efi_log_item	*efip;
 	uint			size;
 
 	ASSERT(nextents > 0);
 	if (nextents > XFS_EFI_MAX_FAST_EXTENTS) {
 		size = (uint)(sizeof(xfs_efi_log_item_t) +
 			((nextents - 1) * sizeof(xfs_extent_t)));
-		efip = (xfs_efi_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+		efip = kmem_zalloc(size, KM_SLEEP);
 	} else {
-		efip = (xfs_efi_log_item_t*)kmem_zone_zalloc(xfs_efi_zone,
-							     KM_SLEEP);
+		efip = kmem_zone_zalloc(xfs_efi_zone, KM_SLEEP);
 	}
 
 	xfs_log_item_init(mp, &efip->efi_item, XFS_LI_EFI, &xfs_efi_item_ops);
 	efip->efi_format.efi_nextents = nextents;
 	efip->efi_format.efi_id = (__psint_t)(void*)efip;
 
-	return (efip);
+	return efip;
 }
 
 /*
@@ -276,7 +244,7 @@ xfs_efi_init(xfs_mount_t	*mp,
 int
 xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
 {
-	xfs_efi_log_format_t *src_efi_fmt = (xfs_efi_log_format_t *)buf->i_addr;
+	xfs_efi_log_format_t *src_efi_fmt = buf->i_addr;
 	uint i;
 	uint len = sizeof(xfs_efi_log_format_t) + 
 		(src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);  
@@ -289,8 +257,7 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
 		memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
 		return 0;
 	} else if (buf->i_len == len32) {
-		xfs_efi_log_format_32_t *src_efi_fmt_32 =
-			(xfs_efi_log_format_32_t *)buf->i_addr;
+		xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr;
 
 		dst_efi_fmt->efi_type     = src_efi_fmt_32->efi_type;
 		dst_efi_fmt->efi_size     = src_efi_fmt_32->efi_size;
@@ -304,8 +271,7 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
 		}
 		return 0;
 	} else if (buf->i_len == len64) {
-		xfs_efi_log_format_64_t *src_efi_fmt_64 =
-			(xfs_efi_log_format_64_t *)buf->i_addr;
+		xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr;
 
 		dst_efi_fmt->efi_type     = src_efi_fmt_64->efi_type;
 		dst_efi_fmt->efi_size     = src_efi_fmt_64->efi_size;
@@ -356,16 +322,18 @@ xfs_efi_release(xfs_efi_log_item_t	*efip,
 	}
 }
 
-STATIC void
-xfs_efd_item_free(xfs_efd_log_item_t *efdp)
+static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip)
 {
-	int nexts = efdp->efd_format.efd_nextents;
+	return container_of(lip, struct xfs_efd_log_item, efd_item);
+}
 
-	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
+STATIC void
+xfs_efd_item_free(struct xfs_efd_log_item *efdp)
+{
+	if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS)
 		kmem_free(efdp);
-	} else {
+	else
 		kmem_zone_free(xfs_efd_zone, efdp);
-	}
 }
 
 /*
@@ -373,9 +341,9 @@ xfs_efd_item_free(xfs_efd_log_item_t *efdp)
  * We only need 1 iovec for an efd item.  It just logs the efd_log_format
  * structure.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_efd_item_size(xfs_efd_log_item_t *efdp)
+xfs_efd_item_size(
+	struct xfs_log_item	*lip)
 {
 	return 1;
 }
@@ -388,10 +356,12 @@ xfs_efd_item_size(xfs_efd_log_item_t *efdp)
  * slots in the efd item have been filled.
  */
 STATIC void
-xfs_efd_item_format(xfs_efd_log_item_t	*efdp,
-		    xfs_log_iovec_t	*log_vector)
+xfs_efd_item_format(
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*log_vector)
 {
-	uint	size;
+	struct xfs_efd_log_item	*efdp = EFD_ITEM(lip);
+	uint			size;
 
 	ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents);
 
@@ -401,48 +371,38 @@ xfs_efd_item_format(xfs_efd_log_item_t	*efdp,
 	size += (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t);
 	efdp->efd_format.efd_size = 1;
 
-	log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
+	log_vector->i_addr = &efdp->efd_format;
 	log_vector->i_len = size;
 	log_vector->i_type = XLOG_REG_TYPE_EFD_FORMAT;
 	ASSERT(size >= sizeof(xfs_efd_log_format_t));
 }
 
-
 /*
  * Pinning has no meaning for an efd item, so just return.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efd_item_pin(xfs_efd_log_item_t *efdp)
+xfs_efd_item_pin(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
-
 /*
  * Since pinning has no meaning for an efd item, unpinning does
  * not either.
  */
-/*ARGSUSED*/
-STATIC void
-xfs_efd_item_unpin(xfs_efd_log_item_t *efdp)
-{
-	return;
-}
-
-/*ARGSUSED*/
 STATIC void
-xfs_efd_item_unpin_remove(xfs_efd_log_item_t *efdp, xfs_trans_t *tp)
+xfs_efd_item_unpin(
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	return;
 }
 
 /*
  * Efd items have no locking, so just return success.
  */
-/*ARGSUSED*/
 STATIC uint
-xfs_efd_item_trylock(xfs_efd_log_item_t *efdp)
+xfs_efd_item_trylock(
+	struct xfs_log_item	*lip)
 {
 	return XFS_ITEM_LOCKED;
 }
@@ -451,13 +411,12 @@ xfs_efd_item_trylock(xfs_efd_log_item_t *efdp)
  * Efd items have no locking or pushing, so return failure
  * so that the caller doesn't bother with us.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
+xfs_efd_item_unlock(
+	struct xfs_log_item	*lip)
 {
-	if (efdp->efd_item.li_flags & XFS_LI_ABORTED)
-		xfs_efd_item_free(efdp);
-	return;
+	if (lip->li_flags & XFS_LI_ABORTED)
+		xfs_efd_item_free(EFD_ITEM(lip));
 }
 
 /*
@@ -467,15 +426,18 @@ xfs_efd_item_unlock(xfs_efd_log_item_t *efdp)
  * return -1 to keep the transaction code from further referencing
  * this item.
  */
-/*ARGSUSED*/
 STATIC xfs_lsn_t
-xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
+xfs_efd_item_committed(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
+	struct xfs_efd_log_item	*efdp = EFD_ITEM(lip);
+
 	/*
 	 * If we got a log I/O error, it's always the case that the LR with the
 	 * EFI got unpinned and freed before the EFD got aborted.
 	 */
-	if ((efdp->efd_item.li_flags & XFS_LI_ABORTED) == 0)
+	if (!(lip->li_flags & XFS_LI_ABORTED))
 		xfs_efi_release(efdp->efd_efip, efdp->efd_format.efd_nextents);
 
 	xfs_efd_item_free(efdp);
@@ -486,11 +448,10 @@ xfs_efd_item_committed(xfs_efd_log_item_t *efdp, xfs_lsn_t lsn)
  * There isn't much you can do to push on an efd item.  It is simply
  * stuck waiting for the log to be flushed to disk.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efd_item_push(xfs_efd_log_item_t *efdp)
+xfs_efd_item_push(
+	struct xfs_log_item	*lip)
 {
-	return;
 }
 
 /*
@@ -500,55 +461,48 @@ xfs_efd_item_push(xfs_efd_log_item_t *efdp)
  * example, for inodes, the inode is locked throughout the extent freeing
  * so the dependency should be recorded there.
  */
-/*ARGSUSED*/
 STATIC void
-xfs_efd_item_committing(xfs_efd_log_item_t *efip, xfs_lsn_t lsn)
+xfs_efd_item_committing(
+	struct xfs_log_item	*lip,
+	xfs_lsn_t		lsn)
 {
-	return;
 }
 
 /*
  * This is the ops vector shared by all efd log items.
  */
 static struct xfs_item_ops xfs_efd_item_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_efd_item_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_efd_item_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_efd_item_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_efd_item_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
-					xfs_efd_item_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_efd_item_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_efd_item_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_efd_item_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_efd_item_push,
-	.iop_pushbuf	= NULL,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_efd_item_committing
+	.iop_size	= xfs_efd_item_size,
+	.iop_format	= xfs_efd_item_format,
+	.iop_pin	= xfs_efd_item_pin,
+	.iop_unpin	= xfs_efd_item_unpin,
+	.iop_trylock	= xfs_efd_item_trylock,
+	.iop_unlock	= xfs_efd_item_unlock,
+	.iop_committed	= xfs_efd_item_committed,
+	.iop_push	= xfs_efd_item_push,
+	.iop_committing = xfs_efd_item_committing
 };
 
-
 /*
  * Allocate and initialize an efd item with the given number of extents.
  */
-xfs_efd_log_item_t *
-xfs_efd_init(xfs_mount_t	*mp,
-	     xfs_efi_log_item_t	*efip,
-	     uint		nextents)
+struct xfs_efd_log_item *
+xfs_efd_init(
+	struct xfs_mount	*mp,
+	struct xfs_efi_log_item	*efip,
+	uint			nextents)
 
 {
-	xfs_efd_log_item_t	*efdp;
+	struct xfs_efd_log_item	*efdp;
 	uint			size;
 
 	ASSERT(nextents > 0);
 	if (nextents > XFS_EFD_MAX_FAST_EXTENTS) {
 		size = (uint)(sizeof(xfs_efd_log_item_t) +
 			((nextents - 1) * sizeof(xfs_extent_t)));
-		efdp = (xfs_efd_log_item_t*)kmem_zalloc(size, KM_SLEEP);
+		efdp = kmem_zalloc(size, KM_SLEEP);
 	} else {
-		efdp = (xfs_efd_log_item_t*)kmem_zone_zalloc(xfs_efd_zone,
-							     KM_SLEEP);
+		efdp = kmem_zone_zalloc(xfs_efd_zone, KM_SLEEP);
 	}
 
 	xfs_log_item_init(mp, &efdp->efd_item, XFS_LI_EFD, &xfs_efd_item_ops);
@@ -556,5 +510,5 @@ xfs_efd_init(xfs_mount_t	*mp,
 	efdp->efd_format.efd_nextents = nextents;
 	efdp->efd_format.efd_efi_id = efip->efi_format.efi_id;
 
-	return (efdp);
+	return efdp;
 }
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 390850ee6603..9b715dce5699 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -18,13 +18,9 @@
 #include "xfs.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inum.h"
-#include "xfs_dir2.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
@@ -127,6 +123,82 @@ typedef struct fstrm_item
 	xfs_inode_t	*pip;	/* Parent directory inode pointer. */
 } fstrm_item_t;
 
+/*
+ * Allocation group filestream associations are tracked with per-ag atomic
+ * counters.  These counters allow _xfs_filestream_pick_ag() to tell whether a
+ * particular AG already has active filestreams associated with it. The mount
+ * point's m_peraglock is used to protect these counters from per-ag array
+ * re-allocation during a growfs operation.  When xfs_growfs_data_private() is
+ * about to reallocate the array, it calls xfs_filestream_flush() with the
+ * m_peraglock held in write mode.
+ *
+ * Since xfs_mru_cache_flush() guarantees that all the free functions for all
+ * the cache elements have finished executing before it returns, it's safe for
+ * the free functions to use the atomic counters without m_peraglock protection.
+ * This allows the implementation of xfs_fstrm_free_func() to be agnostic about
+ * whether it was called with the m_peraglock held in read mode, write mode or
+ * not held at all.  The race condition this addresses is the following:
+ *
+ *  - The work queue scheduler fires and pulls a filestream directory cache
+ *    element off the LRU end of the cache for deletion, then gets pre-empted.
+ *  - A growfs operation grabs the m_peraglock in write mode, flushes all the
+ *    remaining items from the cache and reallocates the mount point's per-ag
+ *    array, resetting all the counters to zero.
+ *  - The work queue thread resumes and calls the free function for the element
+ *    it started cleaning up earlier.  In the process it decrements the
+ *    filestreams counter for an AG that now has no references.
+ *
+ * With a shrinkfs feature, the above scenario could panic the system.
+ *
+ * All other uses of the following macros should be protected by either the
+ * m_peraglock held in read mode, or the cache's internal locking exposed by the
+ * interval between a call to xfs_mru_cache_lookup() and a call to
+ * xfs_mru_cache_done().  In addition, the m_peraglock must be held in read mode
+ * when new elements are added to the cache.
+ *
+ * Combined, these locking rules ensure that no associations will ever exist in
+ * the cache that reference per-ag array elements that have since been
+ * reallocated.
+ */
+static int
+xfs_filestream_peek_ag(
+	xfs_mount_t	*mp,
+	xfs_agnumber_t	agno)
+{
+	struct xfs_perag *pag;
+	int		ret;
+
+	pag = xfs_perag_get(mp, agno);
+	ret = atomic_read(&pag->pagf_fstrms);
+	xfs_perag_put(pag);
+	return ret;
+}
+
+static int
+xfs_filestream_get_ag(
+	xfs_mount_t	*mp,
+	xfs_agnumber_t	agno)
+{
+	struct xfs_perag *pag;
+	int		ret;
+
+	pag = xfs_perag_get(mp, agno);
+	ret = atomic_inc_return(&pag->pagf_fstrms);
+	xfs_perag_put(pag);
+	return ret;
+}
+
+static void
+xfs_filestream_put_ag(
+	xfs_mount_t	*mp,
+	xfs_agnumber_t	agno)
+{
+	struct xfs_perag *pag;
+
+	pag = xfs_perag_get(mp, agno);
+	atomic_dec(&pag->pagf_fstrms);
+	xfs_perag_put(pag);
+}
 
 /*
  * Scan the AGs starting at startag looking for an AG that isn't in use and has
@@ -355,16 +427,14 @@ xfs_fstrm_free_func(
 {
 	fstrm_item_t	*item  = (fstrm_item_t *)data;
 	xfs_inode_t	*ip = item->ip;
-	int ref;
 
 	ASSERT(ip->i_ino == ino);
 
 	xfs_iflags_clear(ip, XFS_IFILESTREAM);
 
 	/* Drop the reference taken on the AG when the item was added. */
-	ref = xfs_filestream_put_ag(ip->i_mount, item->ag);
+	xfs_filestream_put_ag(ip->i_mount, item->ag);
 
-	ASSERT(ref >= 0);
 	TRACE_FREE(ip->i_mount, ip, item->pip, item->ag,
 		xfs_filestream_peek_ag(ip->i_mount, item->ag));
 
diff --git a/fs/xfs/xfs_filestream.h b/fs/xfs/xfs_filestream.h
index 260f757bbc5d..09dd9af45434 100644
--- a/fs/xfs/xfs_filestream.h
+++ b/fs/xfs/xfs_filestream.h
@@ -42,88 +42,6 @@ extern ktrace_t *xfs_filestreams_trace_buf;
 
 #endif
 
-/*
- * Allocation group filestream associations are tracked with per-ag atomic
- * counters.  These counters allow _xfs_filestream_pick_ag() to tell whether a
- * particular AG already has active filestreams associated with it. The mount
- * point's m_peraglock is used to protect these counters from per-ag array
- * re-allocation during a growfs operation.  When xfs_growfs_data_private() is
- * about to reallocate the array, it calls xfs_filestream_flush() with the
- * m_peraglock held in write mode.
- *
- * Since xfs_mru_cache_flush() guarantees that all the free functions for all
- * the cache elements have finished executing before it returns, it's safe for
- * the free functions to use the atomic counters without m_peraglock protection.
- * This allows the implementation of xfs_fstrm_free_func() to be agnostic about
- * whether it was called with the m_peraglock held in read mode, write mode or
- * not held at all.  The race condition this addresses is the following:
- *
- *  - The work queue scheduler fires and pulls a filestream directory cache
- *    element off the LRU end of the cache for deletion, then gets pre-empted.
- *  - A growfs operation grabs the m_peraglock in write mode, flushes all the
- *    remaining items from the cache and reallocates the mount point's per-ag
- *    array, resetting all the counters to zero.
- *  - The work queue thread resumes and calls the free function for the element
- *    it started cleaning up earlier.  In the process it decrements the
- *    filestreams counter for an AG that now has no references.
- *
- * With a shrinkfs feature, the above scenario could panic the system.
- *
- * All other uses of the following macros should be protected by either the
- * m_peraglock held in read mode, or the cache's internal locking exposed by the
- * interval between a call to xfs_mru_cache_lookup() and a call to
- * xfs_mru_cache_done().  In addition, the m_peraglock must be held in read mode
- * when new elements are added to the cache.
- *
- * Combined, these locking rules ensure that no associations will ever exist in
- * the cache that reference per-ag array elements that have since been
- * reallocated.
- */
-/*
- * xfs_filestream_peek_ag is only used in tracing code
- */
-static inline int
-xfs_filestream_peek_ag(
-	xfs_mount_t	*mp,
-	xfs_agnumber_t	agno)
-{
-	struct xfs_perag *pag;
-	int		ret;
-
-	pag = xfs_perag_get(mp, agno);
-	ret = atomic_read(&pag->pagf_fstrms);
-	xfs_perag_put(pag);
-	return ret;
-}
-
-static inline int
-xfs_filestream_get_ag(
-	xfs_mount_t	*mp,
-	xfs_agnumber_t	agno)
-{
-	struct xfs_perag *pag;
-	int		ret;
-
-	pag = xfs_perag_get(mp, agno);
-	ret = atomic_inc_return(&pag->pagf_fstrms);
-	xfs_perag_put(pag);
-	return ret;
-}
-
-static inline int
-xfs_filestream_put_ag(
-	xfs_mount_t	*mp,
-	xfs_agnumber_t	agno)
-{
-	struct xfs_perag *pag;
-	int		ret;
-
-	pag = xfs_perag_get(mp, agno);
-	ret = atomic_dec_return(&pag->pagf_fstrms);
-	xfs_perag_put(pag);
-	return ret;
-}
-
 /* allocation selection flags */
 typedef enum xfs_fstrm_alloc {
 	XFS_PICK_USERDATA = 1,
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 7cf7220e7d5f..8f6fc1a96386 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -114,8 +114,10 @@ struct getbmapx {
 #define BMV_IF_NO_DMAPI_READ	0x2	/* Do not generate DMAPI read event  */
 #define BMV_IF_PREALLOC		0x4	/* rtn status BMV_OF_PREALLOC if req */
 #define BMV_IF_DELALLOC		0x8	/* rtn status BMV_OF_DELALLOC if req */
+#define BMV_IF_NO_HOLES		0x10	/* Do not return holes */
 #define BMV_IF_VALID	\
-	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|BMV_IF_DELALLOC)
+	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|	\
+	 BMV_IF_DELALLOC|BMV_IF_NO_HOLES)
 
 /*	bmv_oflags values - returned for each non-header segment */
 #define BMV_OF_PREALLOC		0x1	/* segment = unwritten pre-allocation */
@@ -291,9 +293,11 @@ typedef struct xfs_bstat {
 	__s32		bs_extsize;	/* extent size			*/
 	__s32		bs_extents;	/* number of extents		*/
 	__u32		bs_gen;		/* generation count		*/
-	__u16		bs_projid;	/* project id			*/
+	__u16		bs_projid_lo;	/* lower part of project id	*/
+#define	bs_projid	bs_projid_lo	/* (previously just bs_projid)	*/
 	__u16		bs_forkoff;	/* inode fork offset in bytes	*/
-	unsigned char	bs_pad[12];	/* pad space, unused		*/
+	__u16		bs_projid_hi;	/* higher part of project id	*/
+	unsigned char	bs_pad[10];	/* pad space, unused		*/
 	__u32		bs_dmevmask;	/* DMIG event mask		*/
 	__u16		bs_dmstate;	/* DMIG state info		*/
 	__u16		bs_aextents;	/* attribute number of extents	*/
@@ -446,6 +450,7 @@ typedef struct xfs_handle {
 /*	XFS_IOC_SETBIOSIZE ---- deprecated 46	   */
 /*	XFS_IOC_GETBIOSIZE ---- deprecated 47	   */
 #define XFS_IOC_GETBMAPX	_IOWR('X', 56, struct getbmap)
+#define XFS_IOC_ZERO_RANGE	_IOW ('X', 57, struct xfs_flock64)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 37a6f62c57b6..a7c116e814af 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -24,14 +24,10 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
@@ -148,12 +144,11 @@ xfs_growfs_data_private(
 	if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
 		return error;
 	dpct = pct - mp->m_sb.sb_imax_pct;
-	error = xfs_read_buf(mp, mp->m_ddev_targp,
-			XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
-			XFS_FSS_TO_BB(mp, 1), 0, &bp);
-	if (error)
-		return error;
-	ASSERT(bp);
+	bp = xfs_buf_read_uncached(mp, mp->m_ddev_targp,
+				XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
+				BBTOB(XFS_FSS_TO_BB(mp, 1)), 0);
+	if (!bp)
+		return EIO;
 	xfs_buf_relse(bp);
 
 	new = nb;	/* use new as a temporary here */
@@ -601,39 +596,44 @@ out:
 		 * the extra reserve blocks from the reserve.....
 		 */
 		int error;
-		error = xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, fdblks_delta, 0);
+		error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
+						 fdblks_delta, 0);
 		if (error == ENOSPC)
 			goto retry;
 	}
 	return 0;
 }
 
+/*
+ * Dump a transaction into the log that contains no real change. This is needed
+ * to be able to make the log dirty or stamp the current tail LSN into the log
+ * during the covering operation.
+ *
+ * We cannot use an inode here for this - that will push dirty state back up
+ * into the VFS and then periodic inode flushing will prevent log covering from
+ * making progress. Hence we log a field in the superblock instead.
+ */
 int
 xfs_fs_log_dummy(
-	xfs_mount_t	*mp)
+	xfs_mount_t	*mp,
+	int		flags)
 {
 	xfs_trans_t	*tp;
-	xfs_inode_t	*ip;
 	int		error;
 
 	tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
-	error = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
+	error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
+					XFS_DEFAULT_LOG_COUNT);
 	if (error) {
 		xfs_trans_cancel(tp, 0);
 		return error;
 	}
 
-	ip = mp->m_rootip;
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	xfs_trans_set_sync(tp);
-	error = xfs_trans_commit(tp, 0);
-
-	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-	return error;
+	/* log the UUID because it is an unchanging field */
+	xfs_mod_sb(tp, XFS_SB_UUID);
+	if (flags & SYNC_WAIT)
+		xfs_trans_set_sync(tp);
+	return xfs_trans_commit(tp, 0);
 }
 
 int
diff --git a/fs/xfs/xfs_fsops.h b/fs/xfs/xfs_fsops.h
index 88435e0a77c9..a786c5212c1e 100644
--- a/fs/xfs/xfs_fsops.h
+++ b/fs/xfs/xfs_fsops.h
@@ -25,6 +25,6 @@ extern int xfs_fs_counts(xfs_mount_t *mp, xfs_fsop_counts_t *cnt);
 extern int xfs_reserve_blocks(xfs_mount_t *mp, __uint64_t *inval,
 				xfs_fsop_resblks_t *outval);
 extern int xfs_fs_goingdown(xfs_mount_t *mp, __uint32_t inflags);
-extern int xfs_fs_log_dummy(xfs_mount_t *mp);
+extern int xfs_fs_log_dummy(xfs_mount_t *mp, int flags);
 
 #endif	/* __XFS_FSOPS_H__ */
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index c7142a064c48..0626a32c3447 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -24,14 +24,10 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -216,7 +212,7 @@ xfs_ialloc_inode_init(
 		 *	to log a whole cluster of inodes instead of all the
 		 *	individual transactions causing a lot of log traffic.
 		 */
-		xfs_biozero(fbuf, 0, ninodes << mp->m_sb.sb_inodelog);
+		xfs_buf_zero(fbuf, 0, ninodes << mp->m_sb.sb_inodelog);
 		for (i = 0; i < ninodes; i++) {
 			int	ioffset = i << mp->m_sb.sb_inodelog;
 			uint	isize = sizeof(struct xfs_dinode);
@@ -1217,7 +1213,6 @@ xfs_imap_lookup(
 	struct xfs_inobt_rec_incore rec;
 	struct xfs_btree_cur	*cur;
 	struct xfs_buf		*agbp;
-	xfs_agino_t		startino;
 	int			error;
 	int			i;
 
@@ -1231,13 +1226,13 @@ xfs_imap_lookup(
 	}
 
 	/*
-	 * derive and lookup the exact inode record for the given agino. If the
-	 * record cannot be found, then it's an invalid inode number and we
-	 * should abort.
+	 * Lookup the inode record for the given agino. If the record cannot be
+	 * found, then it's an invalid inode number and we should abort. Once
+	 * we have a record, we need to ensure it contains the inode number
+	 * we are looking up.
 	 */
 	cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
-	startino = agino & ~(XFS_IALLOC_INODES(mp) - 1);
-	error = xfs_inobt_lookup(cur, startino, XFS_LOOKUP_EQ, &i);
+	error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i);
 	if (!error) {
 		if (i)
 			error = xfs_inobt_get_rec(cur, &rec, &i);
@@ -1250,6 +1245,11 @@ xfs_imap_lookup(
 	if (error)
 		return error;
 
+	/* check that the returned record contains the required inode */
+	if (rec.ir_startino > agino ||
+	    rec.ir_startino + XFS_IALLOC_INODES(mp) <= agino)
+		return EINVAL;
+
 	/* for untrusted inodes check it is allocated first */
 	if ((flags & XFS_IGET_UNTRUSTED) &&
 	    (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino)))
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index c282a9af5393..16921f55c542 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -24,14 +24,10 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -187,38 +183,6 @@ xfs_inobt_key_diff(
 			  cur->bc_rec.i.ir_startino;
 }
 
-STATIC int
-xfs_inobt_kill_root(
-	struct xfs_btree_cur	*cur,
-	struct xfs_buf		*bp,
-	int			level,
-	union xfs_btree_ptr	*newroot)
-{
-	int			error;
-
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
-	XFS_BTREE_STATS_INC(cur, killroot);
-
-	/*
-	 * Update the root pointer, decreasing the level by 1 and then
-	 * free the old root.
-	 */
-	xfs_inobt_set_root(cur, newroot, -1);
-	error = xfs_inobt_free_block(cur, bp);
-	if (error) {
-		XFS_BTREE_TRACE_CURSOR(cur, XBT_ERROR);
-		return error;
-	}
-
-	XFS_BTREE_STATS_INC(cur, free);
-
-	cur->bc_bufs[level] = NULL;
-	cur->bc_nlevels--;
-
-	XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
-	return 0;
-}
-
 #ifdef DEBUG
 STATIC int
 xfs_inobt_keys_inorder(
@@ -313,7 +277,6 @@ static const struct xfs_btree_ops xfs_inobt_ops = {
 
 	.dup_cursor		= xfs_inobt_dup_cursor,
 	.set_root		= xfs_inobt_set_root,
-	.kill_root		= xfs_inobt_kill_root,
 	.alloc_block		= xfs_inobt_alloc_block,
 	.free_block		= xfs_inobt_free_block,
 	.get_minrecs		= xfs_inobt_get_minrecs,
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 8f8b91be2c99..0cdd26932d8e 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -25,14 +25,10 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -95,7 +91,7 @@ xfs_inode_alloc(
 	return ip;
 }
 
-STATIC void
+void
 xfs_inode_free(
 	struct xfs_inode	*ip)
 {
@@ -212,7 +208,7 @@ xfs_iget_cache_hit(
 			ip->i_flags &= ~XFS_INEW;
 			ip->i_flags |= XFS_IRECLAIMABLE;
 			__xfs_inode_set_reclaim_tag(pag, ip);
-			trace_xfs_iget_reclaim(ip);
+			trace_xfs_iget_reclaim_fail(ip);
 			goto out_error;
 		}
 
@@ -227,6 +223,7 @@ xfs_iget_cache_hit(
 	} else {
 		/* If the VFS inode is being torn down, pause and try again. */
 		if (!igrab(inode)) {
+			trace_xfs_iget_skip(ip);
 			error = EAGAIN;
 			goto out_error;
 		}
@@ -234,6 +231,7 @@ xfs_iget_cache_hit(
 		/* We've got a live one. */
 		spin_unlock(&ip->i_flags_lock);
 		read_unlock(&pag->pag_ici_lock);
+		trace_xfs_iget_hit(ip);
 	}
 
 	if (lock_flags != 0)
@@ -242,7 +240,6 @@ xfs_iget_cache_hit(
 	xfs_iflags_clear(ip, XFS_ISTALE);
 	XFS_STATS_INC(xs_ig_found);
 
-	trace_xfs_iget_found(ip);
 	return 0;
 
 out_error:
@@ -264,7 +261,6 @@ xfs_iget_cache_miss(
 {
 	struct xfs_inode	*ip;
 	int			error;
-	unsigned long		first_index, mask;
 	xfs_agino_t		agino = XFS_INO_TO_AGINO(mp, ino);
 
 	ip = xfs_inode_alloc(mp, ino);
@@ -275,7 +271,7 @@ xfs_iget_cache_miss(
 	if (error)
 		goto out_destroy;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_iget_miss(ip);
 
 	if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) {
 		error = ENOENT;
@@ -301,8 +297,6 @@ xfs_iget_cache_miss(
 			BUG();
 	}
 
-	mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
-	first_index = agino & mask;
 	write_lock(&pag->pag_ici_lock);
 
 	/* insert the new inode */
@@ -321,7 +315,6 @@ xfs_iget_cache_miss(
 	write_unlock(&pag->pag_ici_lock);
 	radix_tree_preload_end();
 
-	trace_xfs_iget_alloc(ip);
 	*ipp = ip;
 	return 0;
 
@@ -372,8 +365,8 @@ xfs_iget(
 	xfs_perag_t	*pag;
 	xfs_agino_t	agino;
 
-	/* the radix tree exists only in inode capable AGs */
-	if (XFS_INO_TO_AGNO(mp, ino) >= mp->m_maxagi)
+	/* reject inode numbers outside existing AGs */
+	if (XFS_INO_TO_AGNO(mp, ino) >= mp->m_sb.sb_agcount)
 		return EINVAL;
 
 	/* get the perag structure and ensure that it's inode capable */
@@ -422,97 +415,6 @@ out_error_or_again:
 }
 
 /*
- * Decrement reference count of an inode structure and unlock it.
- *
- * ip -- the inode being released
- * lock_flags -- this parameter indicates the inode's locks to be
- *       to be released.  See the comment on xfs_iunlock() for a list
- *	 of valid values.
- */
-void
-xfs_iput(xfs_inode_t	*ip,
-	 uint		lock_flags)
-{
-	xfs_itrace_entry(ip);
-	xfs_iunlock(ip, lock_flags);
-	IRELE(ip);
-}
-
-/*
- * Special iput for brand-new inodes that are still locked
- */
-void
-xfs_iput_new(
-	xfs_inode_t	*ip,
-	uint		lock_flags)
-{
-	struct inode	*inode = VFS_I(ip);
-
-	xfs_itrace_entry(ip);
-
-	if ((ip->i_d.di_mode == 0)) {
-		ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
-		make_bad_inode(inode);
-	}
-	if (inode->i_state & I_NEW)
-		unlock_new_inode(inode);
-	if (lock_flags)
-		xfs_iunlock(ip, lock_flags);
-	IRELE(ip);
-}
-
-/*
- * This is called free all the memory associated with an inode.
- * It must free the inode itself and any buffers allocated for
- * if_extents/if_data and if_broot.  It must also free the lock
- * associated with the inode.
- *
- * Note: because we don't initialise everything on reallocation out
- * of the zone, we must ensure we nullify everything correctly before
- * freeing the structure.
- */
-void
-xfs_ireclaim(
-	struct xfs_inode	*ip)
-{
-	struct xfs_mount	*mp = ip->i_mount;
-	struct xfs_perag	*pag;
-	xfs_agino_t		agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
-
-	XFS_STATS_INC(xs_ig_reclaims);
-
-	/*
-	 * Remove the inode from the per-AG radix tree.
-	 *
-	 * Because radix_tree_delete won't complain even if the item was never
-	 * added to the tree assert that it's been there before to catch
-	 * problems with the inode life time early on.
-	 */
-	pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ip->i_ino));
-	write_lock(&pag->pag_ici_lock);
-	if (!radix_tree_delete(&pag->pag_ici_root, agino))
-		ASSERT(0);
-	write_unlock(&pag->pag_ici_lock);
-	xfs_perag_put(pag);
-
-	/*
-	 * Here we do an (almost) spurious inode lock in order to coordinate
-	 * with inode cache radix tree lookups.  This is because the lookup
-	 * can reference the inodes in the cache without taking references.
-	 *
-	 * We make that OK here by ensuring that we wait until the inode is
-	 * unlocked after the lookup before we go ahead and free it.  We get
-	 * both the ilock and the iolock because the code may need to drop the
-	 * ilock one but will still hold the iolock.
-	 */
-	xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-	xfs_qm_dqdetach(ip);
-	xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
-	xfs_inode_free(ip);
-}
-
-/*
  * This is a wrapper routine around the xfs_ilock() routine
  * used to centralize some grungy code.  It is used in places
  * that wish to lock the inode solely for reading the extents.
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b76a829d7e20..108c7a085f94 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -27,13 +27,10 @@
 #include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
@@ -44,7 +41,6 @@
 #include "xfs_alloc.h"
 #include "xfs_ialloc.h"
 #include "xfs_bmap.h"
-#include "xfs_rw.h"
 #include "xfs_error.h"
 #include "xfs_utils.h"
 #include "xfs_quota.h"
@@ -426,7 +422,7 @@ xfs_iformat(
 	if (!XFS_DFORK_Q(dip))
 		return 0;
 	ASSERT(ip->i_afp == NULL);
-	ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP);
+	ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP | KM_NOFS);
 	ip->i_afp->if_ext_max =
 		XFS_IFORK_ASIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
 	switch (dip->di_aformat) {
@@ -509,7 +505,7 @@ xfs_iformat_local(
 		ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
 	else {
 		real_size = roundup(size, 4);
-		ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+		ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP | KM_NOFS);
 	}
 	ifp->if_bytes = size;
 	ifp->if_real_bytes = real_size;
@@ -636,7 +632,7 @@ xfs_iformat_btree(
 	}
 
 	ifp->if_broot_bytes = size;
-	ifp->if_broot = kmem_alloc(size, KM_SLEEP);
+	ifp->if_broot = kmem_alloc(size, KM_SLEEP | KM_NOFS);
 	ASSERT(ifp->if_broot != NULL);
 	/*
 	 * Copy and convert from the on-disk structure
@@ -664,7 +660,8 @@ xfs_dinode_from_disk(
 	to->di_uid = be32_to_cpu(from->di_uid);
 	to->di_gid = be32_to_cpu(from->di_gid);
 	to->di_nlink = be32_to_cpu(from->di_nlink);
-	to->di_projid = be16_to_cpu(from->di_projid);
+	to->di_projid_lo = be16_to_cpu(from->di_projid_lo);
+	to->di_projid_hi = be16_to_cpu(from->di_projid_hi);
 	memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad));
 	to->di_flushiter = be16_to_cpu(from->di_flushiter);
 	to->di_atime.t_sec = be32_to_cpu(from->di_atime.t_sec);
@@ -699,7 +696,8 @@ xfs_dinode_to_disk(
 	to->di_uid = cpu_to_be32(from->di_uid);
 	to->di_gid = cpu_to_be32(from->di_gid);
 	to->di_nlink = cpu_to_be32(from->di_nlink);
-	to->di_projid = cpu_to_be16(from->di_projid);
+	to->di_projid_lo = cpu_to_be16(from->di_projid_lo);
+	to->di_projid_hi = cpu_to_be16(from->di_projid_hi);
 	memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad));
 	to->di_flushiter = cpu_to_be16(from->di_flushiter);
 	to->di_atime.t_sec = cpu_to_be32(from->di_atime.t_sec);
@@ -878,7 +876,7 @@ xfs_iread(
 	if (ip->i_d.di_version == 1) {
 		ip->i_d.di_nlink = ip->i_d.di_onlink;
 		ip->i_d.di_onlink = 0;
-		ip->i_d.di_projid = 0;
+		xfs_set_projid(ip, 0);
 	}
 
 	ip->i_delayed_blks = 0;
@@ -922,7 +920,6 @@ xfs_iread_extents(
 	int		error;
 	xfs_ifork_t	*ifp;
 	xfs_extnum_t	nextents;
-	size_t		size;
 
 	if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
 		XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
@@ -930,7 +927,6 @@ xfs_iread_extents(
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 	nextents = XFS_IFORK_NEXTENTS(ip, whichfork);
-	size = nextents * sizeof(xfs_bmbt_rec_t);
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 
 	/*
@@ -988,8 +984,7 @@ xfs_ialloc(
 	mode_t		mode,
 	xfs_nlink_t	nlink,
 	xfs_dev_t	rdev,
-	cred_t		*cr,
-	xfs_prid_t	prid,
+	prid_t		prid,
 	int		okalloc,
 	xfs_buf_t	**ialloc_context,
 	boolean_t	*call_again,
@@ -1033,7 +1028,7 @@ xfs_ialloc(
 	ASSERT(ip->i_d.di_nlink == nlink);
 	ip->i_d.di_uid = current_fsuid();
 	ip->i_d.di_gid = current_fsgid();
-	ip->i_d.di_projid = prid;
+	xfs_set_projid(ip, prid);
 	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
 
 	/*
@@ -1226,7 +1221,7 @@ xfs_isize_check(
 				       (xfs_ufsize_t)XFS_MAXIOFFSET(mp)) -
 			  map_first),
 			 XFS_BMAPI_ENTIRE, NULL, 0, imaps, &nimaps,
-			 NULL, NULL))
+			 NULL))
 	    return;
 	ASSERT(nimaps == 1);
 	ASSERT(imaps[0].br_startblock == HOLESTARTBLOCK);
@@ -1460,7 +1455,7 @@ xfs_itruncate_finish(
 	ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
 	ASSERT(ip->i_transp == *tp);
 	ASSERT(ip->i_itemp != NULL);
-	ASSERT(ip->i_itemp->ili_flags & XFS_ILI_HOLD);
+	ASSERT(ip->i_itemp->ili_lock_flags == 0);
 
 
 	ntp = *tp;
@@ -1589,11 +1584,10 @@ xfs_itruncate_finish(
 		xfs_bmap_init(&free_list, &first_block);
 		error = xfs_bunmapi(ntp, ip,
 				    first_unmap_block, unmap_len,
-				    xfs_bmapi_aflag(fork) |
-				      (sync ? 0 : XFS_BMAPI_ASYNC),
+				    xfs_bmapi_aflag(fork),
 				    XFS_ITRUNC_MAX_EXTENTS,
 				    &first_block, &free_list,
-				    NULL, &done);
+				    &done);
 		if (error) {
 			/*
 			 * If the bunmapi call encounters an error,
@@ -1612,12 +1606,8 @@ xfs_itruncate_finish(
 		 */
 		error = xfs_bmap_finish(tp, &free_list, &committed);
 		ntp = *tp;
-		if (committed) {
-			/* link the inode into the next xact in the chain */
-			xfs_trans_ijoin(ntp, ip,
-					XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-			xfs_trans_ihold(ntp, ip);
-		}
+		if (committed)
+			xfs_trans_ijoin(ntp, ip);
 
 		if (error) {
 			/*
@@ -1646,9 +1636,7 @@ xfs_itruncate_finish(
 		error = xfs_trans_commit(*tp, 0);
 		*tp = ntp;
 
-		/* link the inode into the next transaction in the chain */
-		xfs_trans_ijoin(ntp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-		xfs_trans_ihold(ntp, ip);
+		xfs_trans_ijoin(ntp, ip);
 
 		if (error)
 			return error;
@@ -1927,6 +1915,11 @@ xfs_iunlink_remove(
 	return 0;
 }
 
+/*
+ * A big issue when freeing the inode cluster is is that we _cannot_ skip any
+ * inodes that are in memory - they all must be marked stale and attached to
+ * the cluster buffer.
+ */
 STATIC void
 xfs_ifree_cluster(
 	xfs_inode_t	*free_ip,
@@ -1958,8 +1951,6 @@ xfs_ifree_cluster(
 	}
 
 	for (j = 0; j < nbufs; j++, inum += ninodes) {
-		int	found = 0;
-
 		blkno = XFS_AGB_TO_DADDR(mp, XFS_INO_TO_AGNO(mp, inum),
 					 XFS_INO_TO_AGBNO(mp, inum));
 
@@ -1978,23 +1969,25 @@ xfs_ifree_cluster(
 		/*
 		 * Walk the inodes already attached to the buffer and mark them
 		 * stale. These will all have the flush locks held, so an
-		 * in-memory inode walk can't lock them.
+		 * in-memory inode walk can't lock them. By marking them all
+		 * stale first, we will not attempt to lock them in the loop
+		 * below as the XFS_ISTALE flag will be set.
 		 */
 		lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
 		while (lip) {
 			if (lip->li_type == XFS_LI_INODE) {
 				iip = (xfs_inode_log_item_t *)lip;
 				ASSERT(iip->ili_logged == 1);
-				lip->li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*)) xfs_istale_done;
+				lip->li_cb = xfs_istale_done;
 				xfs_trans_ail_copy_lsn(mp->m_ail,
 							&iip->ili_flush_lsn,
 							&iip->ili_item.li_lsn);
 				xfs_iflags_set(iip->ili_inode, XFS_ISTALE);
-				found++;
 			}
 			lip = lip->li_bio_list;
 		}
 
+
 		/*
 		 * For each inode in memory attempt to add it to the inode
 		 * buffer and set it up for being staled on buffer IO
@@ -2006,6 +1999,7 @@ xfs_ifree_cluster(
 		 * even trying to lock them.
 		 */
 		for (i = 0; i < ninodes; i++) {
+retry:
 			read_lock(&pag->pag_ici_lock);
 			ip = radix_tree_lookup(&pag->pag_ici_root,
 					XFS_INO_TO_AGINO(mp, (inum + i)));
@@ -2016,38 +2010,36 @@ xfs_ifree_cluster(
 				continue;
 			}
 
-			/* don't try to lock/unlock the current inode */
+			/*
+			 * Don't try to lock/unlock the current inode, but we
+			 * _cannot_ skip the other inodes that we did not find
+			 * in the list attached to the buffer and are not
+			 * already marked stale. If we can't lock it, back off
+			 * and retry.
+			 */
 			if (ip != free_ip &&
 			    !xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
 				read_unlock(&pag->pag_ici_lock);
-				continue;
+				delay(1);
+				goto retry;
 			}
 			read_unlock(&pag->pag_ici_lock);
 
-			if (!xfs_iflock_nowait(ip)) {
-				if (ip != free_ip)
-					xfs_iunlock(ip, XFS_ILOCK_EXCL);
-				continue;
-			}
-
+			xfs_iflock(ip);
 			xfs_iflags_set(ip, XFS_ISTALE);
-			if (xfs_inode_clean(ip)) {
-				ASSERT(ip != free_ip);
-				xfs_ifunlock(ip);
-				xfs_iunlock(ip, XFS_ILOCK_EXCL);
-				continue;
-			}
 
+			/*
+			 * we don't need to attach clean inodes or those only
+			 * with unlogged changes (which we throw away, anyway).
+			 */
 			iip = ip->i_itemp;
-			if (!iip) {
-				/* inode with unlogged changes only */
+			if (!iip || xfs_inode_clean(ip)) {
 				ASSERT(ip != free_ip);
 				ip->i_update_core = 0;
 				xfs_ifunlock(ip);
 				xfs_iunlock(ip, XFS_ILOCK_EXCL);
 				continue;
 			}
-			found++;
 
 			iip->ili_last_fields = iip->ili_format.ilf_fields;
 			iip->ili_format.ilf_fields = 0;
@@ -2055,16 +2047,14 @@ xfs_ifree_cluster(
 			xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
 						&iip->ili_item.li_lsn);
 
-			xfs_buf_attach_iodone(bp,
-				(void(*)(xfs_buf_t*,xfs_log_item_t*))
-				xfs_istale_done, (xfs_log_item_t *)iip);
+			xfs_buf_attach_iodone(bp, xfs_istale_done,
+						  &iip->ili_item);
 
 			if (ip != free_ip)
 				xfs_iunlock(ip, XFS_ILOCK_EXCL);
 		}
 
-		if (found)
-			xfs_trans_stale_inode_buf(tp, bp);
+		xfs_trans_stale_inode_buf(tp, bp);
 		xfs_trans_binval(tp, bp);
 	}
 
@@ -2203,7 +2193,7 @@ xfs_iroot_realloc(
 		 */
 		if (ifp->if_broot_bytes == 0) {
 			new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(rec_diff);
-			ifp->if_broot = kmem_alloc(new_size, KM_SLEEP);
+			ifp->if_broot = kmem_alloc(new_size, KM_SLEEP | KM_NOFS);
 			ifp->if_broot_bytes = (int)new_size;
 			return;
 		}
@@ -2219,7 +2209,7 @@ xfs_iroot_realloc(
 		new_size = (size_t)XFS_BMAP_BROOT_SPACE_CALC(new_max);
 		ifp->if_broot = kmem_realloc(ifp->if_broot, new_size,
 				(size_t)XFS_BMAP_BROOT_SPACE_CALC(cur_max), /* old size */
-				KM_SLEEP);
+				KM_SLEEP | KM_NOFS);
 		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
 						     ifp->if_broot_bytes);
 		np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,
@@ -2245,7 +2235,7 @@ xfs_iroot_realloc(
 	else
 		new_size = 0;
 	if (new_size > 0) {
-		new_broot = kmem_alloc(new_size, KM_SLEEP);
+		new_broot = kmem_alloc(new_size, KM_SLEEP | KM_NOFS);
 		/*
 		 * First copy over the btree block header.
 		 */
@@ -2349,7 +2339,8 @@ xfs_idata_realloc(
 		real_size = roundup(new_size, 4);
 		if (ifp->if_u1.if_data == NULL) {
 			ASSERT(ifp->if_real_bytes == 0);
-			ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+			ifp->if_u1.if_data = kmem_alloc(real_size,
+							KM_SLEEP | KM_NOFS);
 		} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
 			/*
 			 * Only do the realloc if the underlying size
@@ -2360,11 +2351,12 @@ xfs_idata_realloc(
 					kmem_realloc(ifp->if_u1.if_data,
 							real_size,
 							ifp->if_real_bytes,
-							KM_SLEEP);
+							KM_SLEEP | KM_NOFS);
 			}
 		} else {
 			ASSERT(ifp->if_real_bytes == 0);
-			ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP);
+			ifp->if_u1.if_data = kmem_alloc(real_size,
+							KM_SLEEP | KM_NOFS);
 			memcpy(ifp->if_u1.if_data, ifp->if_u2.if_inline_data,
 				ifp->if_bytes);
 		}
@@ -2731,11 +2723,10 @@ cluster_corrupt_out:
 		 * mark it as stale and brelse.
 		 */
 		if (XFS_BUF_IODONE_FUNC(bp)) {
-			XFS_BUF_CLR_BDSTRAT_FUNC(bp);
 			XFS_BUF_UNDONE(bp);
 			XFS_BUF_STALE(bp);
 			XFS_BUF_ERROR(bp,EIO);
-			xfs_biodone(bp);
+			xfs_buf_ioend(bp, 0);
 		} else {
 			XFS_BUF_STALE(bp);
 			xfs_buf_relse(bp);
@@ -3018,7 +3009,7 @@ xfs_iflush_int(
 			memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
 			memset(&(dip->di_pad[0]), 0,
 			      sizeof(dip->di_pad));
-			ASSERT(ip->i_d.di_projid == 0);
+			ASSERT(xfs_get_projid(ip) == 0);
 		}
 	}
 
@@ -3069,8 +3060,7 @@ xfs_iflush_int(
 		 * and unlock the inode's flush lock when the inode is
 		 * completely written to disk.
 		 */
-		xfs_buf_attach_iodone(bp, (void(*)(xfs_buf_t*,xfs_log_item_t*))
-				      xfs_iflush_done, (xfs_log_item_t *)iip);
+		xfs_buf_attach_iodone(bp, xfs_iflush_done, &iip->ili_item);
 
 		ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
 		ASSERT(XFS_BUF_IODONE_FUNC(bp) != NULL);
@@ -3514,13 +3504,11 @@ xfs_iext_remove_indirect(
 	xfs_extnum_t	ext_diff;	/* extents to remove in current list */
 	xfs_extnum_t	nex1;		/* number of extents before idx */
 	xfs_extnum_t	nex2;		/* extents after idx + count */
-	int		nlists;		/* entries in indirection array */
 	int		page_idx = idx;	/* index in target extent list */
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
 	erp = xfs_iext_idx_to_irec(ifp,  &page_idx, &erp_idx, 0);
 	ASSERT(erp != NULL);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
 	nex1 = page_idx;
 	ext_cnt = count;
 	while (ext_cnt) {
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 78550df13cd6..fb2ca2e4cdc9 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -134,8 +134,9 @@ typedef struct xfs_icdinode {
 	__uint32_t	di_uid;		/* owner's user id */
 	__uint32_t	di_gid;		/* owner's group id */
 	__uint32_t	di_nlink;	/* number of links to file */
-	__uint16_t	di_projid;	/* owner's project id */
-	__uint8_t	di_pad[8];	/* unused, zeroed space */
+	__uint16_t	di_projid_lo;	/* lower part of owner's project id */
+	__uint16_t	di_projid_hi;	/* higher part of owner's project id */
+	__uint8_t	di_pad[6];	/* unused, zeroed space */
 	__uint16_t	di_flushiter;	/* incremented on flush */
 	xfs_ictimestamp_t di_atime;	/* time last accessed */
 	xfs_ictimestamp_t di_mtime;	/* time last modified */
@@ -212,7 +213,6 @@ typedef struct xfs_icdinode {
 #ifdef __KERNEL__
 
 struct bhv_desc;
-struct cred;
 struct xfs_buf;
 struct xfs_bmap_free;
 struct xfs_bmbt_irec;
@@ -335,6 +335,25 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
 }
 
 /*
+ * Project quota id helpers (previously projid was 16bit only
+ * and using two 16bit values to hold new 32bit projid was choosen
+ * to retain compatibility with "old" filesystems).
+ */
+static inline prid_t
+xfs_get_projid(struct xfs_inode *ip)
+{
+	return (prid_t)ip->i_d.di_projid_hi << 16 | ip->i_d.di_projid_lo;
+}
+
+static inline void
+xfs_set_projid(struct xfs_inode *ip,
+		prid_t projid)
+{
+	ip->i_d.di_projid_hi = (__uint16_t) (projid >> 16);
+	ip->i_d.di_projid_lo = (__uint16_t) (projid & 0xffff);
+}
+
+/*
  * Manage the i_flush queue embedded in the inode.  This completion
  * queue synchronizes processes attempting to flush the in-core
  * inode back to disk.
@@ -443,8 +462,6 @@ static inline void xfs_ifunlock(xfs_inode_t *ip)
  */
 int		xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
 			 uint, uint, xfs_inode_t **);
-void		xfs_iput(xfs_inode_t *, uint);
-void		xfs_iput_new(xfs_inode_t *, uint);
 void		xfs_ilock(xfs_inode_t *, uint);
 int		xfs_ilock_nowait(xfs_inode_t *, uint);
 void		xfs_iunlock(xfs_inode_t *, uint);
@@ -452,14 +469,14 @@ void		xfs_ilock_demote(xfs_inode_t *, uint);
 int		xfs_isilocked(xfs_inode_t *, uint);
 uint		xfs_ilock_map_shared(xfs_inode_t *);
 void		xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void		xfs_ireclaim(xfs_inode_t *);
+void		xfs_inode_free(struct xfs_inode *ip);
 
 /*
  * xfs_inode.c prototypes.
  */
 int		xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
-			   xfs_nlink_t, xfs_dev_t, cred_t *, xfs_prid_t,
-			   int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
+			   xfs_nlink_t, xfs_dev_t, prid_t, int,
+			   struct xfs_buf **, boolean_t *, xfs_inode_t **);
 
 uint		xfs_ip2xflags(struct xfs_inode *);
 uint		xfs_dic2xflags(struct xfs_dinode *);
@@ -473,7 +490,6 @@ int		xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
 void		xfs_iext_realloc(xfs_inode_t *, int, int);
 void		xfs_iunpin_wait(xfs_inode_t *);
 int		xfs_iflush(xfs_inode_t *, uint);
-void		xfs_ichgtime(xfs_inode_t *, int);
 void		xfs_lock_inodes(xfs_inode_t **, int, uint);
 void		xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
 
@@ -484,7 +500,7 @@ void		xfs_mark_inode_dirty_sync(xfs_inode_t *);
 #define IHOLD(ip) \
 do { \
 	ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
-	atomic_inc(&(VFS_I(ip)->i_count)); \
+	ihold(VFS_I(ip)); \
 	trace_xfs_ihold(ip, _THIS_IP_); \
 } while (0)
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index cf8249a60004..c7ac020705df 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -22,30 +22,26 @@
 #include "xfs_log.h"
 #include "xfs_inum.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_trans_priv.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_rw.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 
 
 kmem_zone_t	*xfs_ili_zone;		/* inode log item zone */
 
+static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip)
+{
+	return container_of(lip, struct xfs_inode_log_item, ili_item);
+}
+
+
 /*
  * This returns the number of iovecs needed to log the given inode item.
  *
@@ -55,13 +51,11 @@ kmem_zone_t	*xfs_ili_zone;		/* inode log item zone */
  */
 STATIC uint
 xfs_inode_item_size(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	uint		nvecs;
-	xfs_inode_t	*ip;
-
-	ip = iip->ili_inode;
-	nvecs = 2;
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
+	uint			nvecs = 2;
 
 	/*
 	 * Only log the data/extents/b-tree root if there is something
@@ -212,36 +206,23 @@ xfs_inode_item_size(
  */
 STATIC void
 xfs_inode_item_format(
-	xfs_inode_log_item_t	*iip,
-	xfs_log_iovec_t		*log_vector)
+	struct xfs_log_item	*lip,
+	struct xfs_log_iovec	*vecp)
 {
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
 	uint			nvecs;
-	xfs_log_iovec_t		*vecp;
-	xfs_inode_t		*ip;
 	size_t			data_bytes;
 	xfs_bmbt_rec_t		*ext_buffer;
-	int			nrecs;
 	xfs_mount_t		*mp;
 
-	ip = iip->ili_inode;
-	vecp = log_vector;
-
-	vecp->i_addr = (xfs_caddr_t)&iip->ili_format;
+	vecp->i_addr = &iip->ili_format;
 	vecp->i_len  = sizeof(xfs_inode_log_format_t);
 	vecp->i_type = XLOG_REG_TYPE_IFORMAT;
 	vecp++;
 	nvecs	     = 1;
 
 	/*
-	 * Make sure the linux inode is dirty. We do this before
-	 * clearing i_update_core as the VFS will call back into
-	 * XFS here and set i_update_core, so we need to dirty the
-	 * inode first so that the ordering of i_update_core and
-	 * unlogged modifications still works as described below.
-	 */
-	xfs_mark_inode_dirty_sync(ip);
-
-	/*
 	 * Clear i_update_core if the timestamps (or any other
 	 * non-transactional modification) need flushing/logging
 	 * and we're about to log them with the rest of the core.
@@ -277,7 +258,7 @@ xfs_inode_item_format(
 	 */
 	xfs_synchronize_times(ip);
 
-	vecp->i_addr = (xfs_caddr_t)&ip->i_d;
+	vecp->i_addr = &ip->i_d;
 	vecp->i_len  = sizeof(struct xfs_icdinode);
 	vecp->i_type = XLOG_REG_TYPE_ICORE;
 	vecp++;
@@ -323,18 +304,17 @@ xfs_inode_item_format(
 			ASSERT(ip->i_df.if_u1.if_extents != NULL);
 			ASSERT(ip->i_d.di_nextents > 0);
 			ASSERT(iip->ili_extents_buf == NULL);
-			nrecs = ip->i_df.if_bytes /
-				(uint)sizeof(xfs_bmbt_rec_t);
-			ASSERT(nrecs > 0);
+			ASSERT((ip->i_df.if_bytes /
+				(uint)sizeof(xfs_bmbt_rec_t)) > 0);
 #ifdef XFS_NATIVE_HOST
-			if (nrecs == ip->i_d.di_nextents) {
+                       if (ip->i_d.di_nextents == ip->i_df.if_bytes /
+                                               (uint)sizeof(xfs_bmbt_rec_t)) {
 				/*
 				 * There are no delayed allocation
 				 * extents, so just point to the
 				 * real extents array.
 				 */
-				vecp->i_addr =
-					(char *)(ip->i_df.if_u1.if_extents);
+				vecp->i_addr = ip->i_df.if_u1.if_extents;
 				vecp->i_len = ip->i_df.if_bytes;
 				vecp->i_type = XLOG_REG_TYPE_IEXT;
 			} else
@@ -352,7 +332,7 @@ xfs_inode_item_format(
 				ext_buffer = kmem_alloc(ip->i_df.if_bytes,
 					KM_SLEEP);
 				iip->ili_extents_buf = ext_buffer;
-				vecp->i_addr = (xfs_caddr_t)ext_buffer;
+				vecp->i_addr = ext_buffer;
 				vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
 						XFS_DATA_FORK);
 				vecp->i_type = XLOG_REG_TYPE_IEXT;
@@ -371,7 +351,7 @@ xfs_inode_item_format(
 		if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) {
 			ASSERT(ip->i_df.if_broot_bytes > 0);
 			ASSERT(ip->i_df.if_broot != NULL);
-			vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot;
+			vecp->i_addr = ip->i_df.if_broot;
 			vecp->i_len = ip->i_df.if_broot_bytes;
 			vecp->i_type = XLOG_REG_TYPE_IBROOT;
 			vecp++;
@@ -389,7 +369,7 @@ xfs_inode_item_format(
 			ASSERT(ip->i_df.if_u1.if_data != NULL);
 			ASSERT(ip->i_d.di_size > 0);
 
-			vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data;
+			vecp->i_addr = ip->i_df.if_u1.if_data;
 			/*
 			 * Round i_bytes up to a word boundary.
 			 * The underlying memory is guaranteed to
@@ -437,7 +417,7 @@ xfs_inode_item_format(
 	 * Assert that no attribute-related log flags are set.
 	 */
 	if (!XFS_IFORK_Q(ip)) {
-		ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+		ASSERT(nvecs == lip->li_desc->lid_size);
 		iip->ili_format.ilf_size = nvecs;
 		ASSERT(!(iip->ili_format.ilf_fields &
 			 (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT)));
@@ -449,21 +429,21 @@ xfs_inode_item_format(
 		ASSERT(!(iip->ili_format.ilf_fields &
 			 (XFS_ILOG_ADATA | XFS_ILOG_ABROOT)));
 		if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) {
-			ASSERT(ip->i_afp->if_bytes > 0);
-			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
-			ASSERT(ip->i_d.di_anextents > 0);
 #ifdef DEBUG
-			nrecs = ip->i_afp->if_bytes /
+			int nrecs = ip->i_afp->if_bytes /
 				(uint)sizeof(xfs_bmbt_rec_t);
-#endif
 			ASSERT(nrecs > 0);
 			ASSERT(nrecs == ip->i_d.di_anextents);
+			ASSERT(ip->i_afp->if_bytes > 0);
+			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
+			ASSERT(ip->i_d.di_anextents > 0);
+#endif
 #ifdef XFS_NATIVE_HOST
 			/*
 			 * There are not delayed allocation extents
 			 * for attributes, so just point at the array.
 			 */
-			vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents);
+			vecp->i_addr = ip->i_afp->if_u1.if_extents;
 			vecp->i_len = ip->i_afp->if_bytes;
 #else
 			ASSERT(iip->ili_aextents_buf == NULL);
@@ -473,7 +453,7 @@ xfs_inode_item_format(
 			ext_buffer = kmem_alloc(ip->i_afp->if_bytes,
 				KM_SLEEP);
 			iip->ili_aextents_buf = ext_buffer;
-			vecp->i_addr = (xfs_caddr_t)ext_buffer;
+			vecp->i_addr = ext_buffer;
 			vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
 					XFS_ATTR_FORK);
 #endif
@@ -490,7 +470,7 @@ xfs_inode_item_format(
 		if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) {
 			ASSERT(ip->i_afp->if_broot_bytes > 0);
 			ASSERT(ip->i_afp->if_broot != NULL);
-			vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot;
+			vecp->i_addr = ip->i_afp->if_broot;
 			vecp->i_len = ip->i_afp->if_broot_bytes;
 			vecp->i_type = XLOG_REG_TYPE_IATTR_BROOT;
 			vecp++;
@@ -506,7 +486,7 @@ xfs_inode_item_format(
 			ASSERT(ip->i_afp->if_bytes > 0);
 			ASSERT(ip->i_afp->if_u1.if_data != NULL);
 
-			vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data;
+			vecp->i_addr = ip->i_afp->if_u1.if_data;
 			/*
 			 * Round i_bytes up to a word boundary.
 			 * The underlying memory is guaranteed to
@@ -528,7 +508,7 @@ xfs_inode_item_format(
 		break;
 	}
 
-	ASSERT(nvecs == iip->ili_item.li_desc->lid_size);
+	ASSERT(nvecs == lip->li_desc->lid_size);
 	iip->ili_format.ilf_size = nvecs;
 }
 
@@ -539,12 +519,14 @@ xfs_inode_item_format(
  */
 STATIC void
 xfs_inode_item_pin(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
+	struct xfs_inode	*ip = INODE_ITEM(lip)->ili_inode;
+
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 
-	trace_xfs_inode_pin(iip->ili_inode, _RET_IP_);
-	atomic_inc(&iip->ili_inode->i_pincount);
+	trace_xfs_inode_pin(ip, _RET_IP_);
+	atomic_inc(&ip->i_pincount);
 }
 
 
@@ -554,12 +536,12 @@ xfs_inode_item_pin(
  *
  * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0.
  */
-/* ARGSUSED */
 STATIC void
 xfs_inode_item_unpin(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip,
+	int			remove)
 {
-	struct xfs_inode	*ip = iip->ili_inode;
+	struct xfs_inode	*ip = INODE_ITEM(lip)->ili_inode;
 
 	trace_xfs_inode_unpin(ip, _RET_IP_);
 	ASSERT(atomic_read(&ip->i_pincount) > 0);
@@ -567,15 +549,6 @@ xfs_inode_item_unpin(
 		wake_up(&ip->i_ipin_wait);
 }
 
-/* ARGSUSED */
-STATIC void
-xfs_inode_item_unpin_remove(
-	xfs_inode_log_item_t	*iip,
-	xfs_trans_t		*tp)
-{
-	xfs_inode_item_unpin(iip);
-}
-
 /*
  * This is called to attempt to lock the inode associated with this
  * inode log item, in preparation for the push routine which does the actual
@@ -591,19 +564,16 @@ xfs_inode_item_unpin_remove(
  */
 STATIC uint
 xfs_inode_item_trylock(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	register xfs_inode_t	*ip;
-
-	ip = iip->ili_inode;
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
 
-	if (xfs_ipincount(ip) > 0) {
+	if (xfs_ipincount(ip) > 0)
 		return XFS_ITEM_PINNED;
-	}
 
-	if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
+	if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
 		return XFS_ITEM_LOCKED;
-	}
 
 	if (!xfs_iflock_nowait(ip)) {
 		/*
@@ -629,7 +599,7 @@ xfs_inode_item_trylock(
 	if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		ASSERT(iip->ili_format.ilf_fields != 0);
 		ASSERT(iip->ili_logged == 0);
-		ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL);
+		ASSERT(lip->li_flags & XFS_LI_IN_AIL);
 	}
 #endif
 	return XFS_ITEM_SUCCESS;
@@ -643,26 +613,18 @@ xfs_inode_item_trylock(
  */
 STATIC void
 xfs_inode_item_unlock(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	uint		hold;
-	uint		iolocked;
-	uint		lock_flags;
-	xfs_inode_t	*ip;
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
+	unsigned short		lock_flags;
 
-	ASSERT(iip != NULL);
 	ASSERT(iip->ili_inode->i_itemp != NULL);
 	ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL));
-	ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
-		  XFS_ILI_IOLOCKED_EXCL)) ||
-	       xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL));
-	ASSERT((!(iip->ili_inode->i_itemp->ili_flags &
-		  XFS_ILI_IOLOCKED_SHARED)) ||
-	       xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED));
+
 	/*
 	 * Clear the transaction pointer in the inode.
 	 */
-	ip = iip->ili_inode;
 	ip->i_transp = NULL;
 
 	/*
@@ -686,34 +648,11 @@ xfs_inode_item_unlock(
 		iip->ili_aextents_buf = NULL;
 	}
 
-	/*
-	 * Figure out if we should unlock the inode or not.
-	 */
-	hold = iip->ili_flags & XFS_ILI_HOLD;
-
-	/*
-	 * Before clearing out the flags, remember whether we
-	 * are holding the inode's IO lock.
-	 */
-	iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY;
-
-	/*
-	 * Clear out the fields of the inode log item particular
-	 * to the current transaction.
-	 */
-	iip->ili_flags = 0;
-
-	/*
-	 * Unlock the inode if XFS_ILI_HOLD was not set.
-	 */
-	if (!hold) {
-		lock_flags = XFS_ILOCK_EXCL;
-		if (iolocked & XFS_ILI_IOLOCKED_EXCL) {
-			lock_flags |= XFS_IOLOCK_EXCL;
-		} else if (iolocked & XFS_ILI_IOLOCKED_SHARED) {
-			lock_flags |= XFS_IOLOCK_SHARED;
-		}
-		xfs_iput(iip->ili_inode, lock_flags);
+	lock_flags = iip->ili_lock_flags;
+	iip->ili_lock_flags = 0;
+	if (lock_flags) {
+		xfs_iunlock(iip->ili_inode, lock_flags);
+		IRELE(iip->ili_inode);
 	}
 }
 
@@ -725,13 +664,12 @@ xfs_inode_item_unlock(
  * is the only one that matters.  Therefore, simply return the
  * given lsn.
  */
-/*ARGSUSED*/
 STATIC xfs_lsn_t
 xfs_inode_item_committed(
-	xfs_inode_log_item_t	*iip,
+	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn)
 {
-	return (lsn);
+	return lsn;
 }
 
 /*
@@ -743,13 +681,12 @@ xfs_inode_item_committed(
  */
 STATIC void
 xfs_inode_item_pushbuf(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	xfs_inode_t	*ip;
-	xfs_mount_t	*mp;
-	xfs_buf_t	*bp;
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
+	struct xfs_buf		*bp;
 
-	ip = iip->ili_inode;
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
 
 	/*
@@ -757,14 +694,13 @@ xfs_inode_item_pushbuf(
 	 * inode was taken off the AIL. So, just get out.
 	 */
 	if (completion_done(&ip->i_flush) ||
-	    ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
+	    !(lip->li_flags & XFS_LI_IN_AIL)) {
 		xfs_iunlock(ip, XFS_ILOCK_SHARED);
 		return;
 	}
 
-	mp = ip->i_mount;
-	bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno,
-		    iip->ili_format.ilf_len, XBF_TRYLOCK);
+	bp = xfs_incore(ip->i_mount->m_ddev_targp, iip->ili_format.ilf_blkno,
+			iip->ili_format.ilf_len, XBF_TRYLOCK);
 
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 	if (!bp)
@@ -772,10 +708,8 @@ xfs_inode_item_pushbuf(
 	if (XFS_BUF_ISDELAYWRITE(bp))
 		xfs_buf_delwri_promote(bp);
 	xfs_buf_relse(bp);
-	return;
 }
 
-
 /*
  * This is called to asynchronously write the inode associated with this
  * inode log item out to disk. The inode will already have been locked by
@@ -783,14 +717,14 @@ xfs_inode_item_pushbuf(
  */
 STATIC void
 xfs_inode_item_push(
-	xfs_inode_log_item_t	*iip)
+	struct xfs_log_item	*lip)
 {
-	xfs_inode_t	*ip;
-
-	ip = iip->ili_inode;
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
+	struct xfs_inode	*ip = iip->ili_inode;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
 	ASSERT(!completion_done(&ip->i_flush));
+
 	/*
 	 * Since we were able to lock the inode's flush lock and
 	 * we found it on the AIL, the inode must be dirty.  This
@@ -813,43 +747,34 @@ xfs_inode_item_push(
 	 */
 	(void) xfs_iflush(ip, 0);
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
-	return;
 }
 
 /*
  * XXX rcc - this one really has to do something.  Probably needs
  * to stamp in a new field in the incore inode.
  */
-/* ARGSUSED */
 STATIC void
 xfs_inode_item_committing(
-	xfs_inode_log_item_t	*iip,
+	struct xfs_log_item	*lip,
 	xfs_lsn_t		lsn)
 {
-	iip->ili_last_lsn = lsn;
-	return;
+	INODE_ITEM(lip)->ili_last_lsn = lsn;
 }
 
 /*
  * This is the ops vector shared by all buf log items.
  */
 static struct xfs_item_ops xfs_inode_item_ops = {
-	.iop_size	= (uint(*)(xfs_log_item_t*))xfs_inode_item_size,
-	.iop_format	= (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
-					xfs_inode_item_format,
-	.iop_pin	= (void(*)(xfs_log_item_t*))xfs_inode_item_pin,
-	.iop_unpin	= (void(*)(xfs_log_item_t*))xfs_inode_item_unpin,
-	.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
-					xfs_inode_item_unpin_remove,
-	.iop_trylock	= (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock,
-	.iop_unlock	= (void(*)(xfs_log_item_t*))xfs_inode_item_unlock,
-	.iop_committed	= (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_inode_item_committed,
-	.iop_push	= (void(*)(xfs_log_item_t*))xfs_inode_item_push,
-	.iop_pushbuf	= (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf,
-	.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
-					xfs_inode_item_committing
+	.iop_size	= xfs_inode_item_size,
+	.iop_format	= xfs_inode_item_format,
+	.iop_pin	= xfs_inode_item_pin,
+	.iop_unpin	= xfs_inode_item_unpin,
+	.iop_trylock	= xfs_inode_item_trylock,
+	.iop_unlock	= xfs_inode_item_unlock,
+	.iop_committed	= xfs_inode_item_committed,
+	.iop_push	= xfs_inode_item_push,
+	.iop_pushbuf	= xfs_inode_item_pushbuf,
+	.iop_committing = xfs_inode_item_committing
 };
 
 
@@ -858,10 +783,10 @@ static struct xfs_item_ops xfs_inode_item_ops = {
  */
 void
 xfs_inode_item_init(
-	xfs_inode_t	*ip,
-	xfs_mount_t	*mp)
+	struct xfs_inode	*ip,
+	struct xfs_mount	*mp)
 {
-	xfs_inode_log_item_t	*iip;
+	struct xfs_inode_log_item *iip;
 
 	ASSERT(ip->i_itemp == NULL);
 	iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP);
@@ -899,14 +824,14 @@ xfs_inode_item_destroy(
  * from the AIL if it has not been re-logged, and unlocking the inode's
  * flush lock.
  */
-/*ARGSUSED*/
 void
 xfs_iflush_done(
-	xfs_buf_t		*bp,
-	xfs_inode_log_item_t	*iip)
+	struct xfs_buf		*bp,
+	struct xfs_log_item	*lip)
 {
+	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
 	xfs_inode_t		*ip = iip->ili_inode;
-	struct xfs_ail		*ailp = iip->ili_item.li_ailp;
+	struct xfs_ail		*ailp = lip->li_ailp;
 
 	/*
 	 * We only want to pull the item from the AIL if it is
@@ -917,12 +842,11 @@ xfs_iflush_done(
 	 * the lock since it's cheaper, and then we recheck while
 	 * holding the lock before removing the inode from the AIL.
 	 */
-	if (iip->ili_logged &&
-	    (iip->ili_item.li_lsn == iip->ili_flush_lsn)) {
+	if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) {
 		spin_lock(&ailp->xa_lock);
-		if (iip->ili_item.li_lsn == iip->ili_flush_lsn) {
+		if (lip->li_lsn == iip->ili_flush_lsn) {
 			/* xfs_trans_ail_delete() drops the AIL lock. */
-			xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip);
+			xfs_trans_ail_delete(ailp, lip);
 		} else {
 			spin_unlock(&ailp->xa_lock);
 		}
@@ -940,8 +864,6 @@ xfs_iflush_done(
 	 * Release the inode's flush lock since we're done with it.
 	 */
 	xfs_ifunlock(ip);
-
-	return;
 }
 
 /*
@@ -957,10 +879,8 @@ xfs_iflush_abort(
 	xfs_inode_t		*ip)
 {
 	xfs_inode_log_item_t	*iip = ip->i_itemp;
-	xfs_mount_t		*mp;
 
 	iip = ip->i_itemp;
-	mp = ip->i_mount;
 	if (iip) {
 		struct xfs_ail	*ailp = iip->ili_item.li_ailp;
 		if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
@@ -991,10 +911,10 @@ xfs_iflush_abort(
 
 void
 xfs_istale_done(
-	xfs_buf_t		*bp,
-	xfs_inode_log_item_t	*iip)
+	struct xfs_buf		*bp,
+	struct xfs_log_item	*lip)
 {
-	xfs_iflush_abort(iip->ili_inode);
+	xfs_iflush_abort(INODE_ITEM(lip)->ili_inode);
 }
 
 /*
@@ -1007,9 +927,8 @@ xfs_inode_item_format_convert(
 	xfs_inode_log_format_t	*in_f)
 {
 	if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
-		xfs_inode_log_format_32_t *in_f32;
+		xfs_inode_log_format_32_t *in_f32 = buf->i_addr;
 
-		in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr;
 		in_f->ilf_type = in_f32->ilf_type;
 		in_f->ilf_size = in_f32->ilf_size;
 		in_f->ilf_fields = in_f32->ilf_fields;
@@ -1025,9 +944,8 @@ xfs_inode_item_format_convert(
 		in_f->ilf_boffset = in_f32->ilf_boffset;
 		return 0;
 	} else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
-		xfs_inode_log_format_64_t *in_f64;
+		xfs_inode_log_format_64_t *in_f64 = buf->i_addr;
 
-		in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr;
 		in_f->ilf_type = in_f64->ilf_type;
 		in_f->ilf_size = in_f64->ilf_size;
 		in_f->ilf_fields = in_f64->ilf_fields;
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index 9a467958ecdd..d3dee61e6d91 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -103,12 +103,6 @@ typedef struct xfs_inode_log_format_64 {
 				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
 				 XFS_ILOG_ABROOT)
 
-#define	XFS_ILI_HOLD		0x1
-#define	XFS_ILI_IOLOCKED_EXCL	0x2
-#define	XFS_ILI_IOLOCKED_SHARED	0x4
-
-#define	XFS_ILI_IOLOCKED_ANY   (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)
-
 static inline int xfs_ilog_fbroot(int w)
 {
 	return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
@@ -137,7 +131,7 @@ typedef struct xfs_inode_log_item {
 	struct xfs_inode	*ili_inode;	   /* inode ptr */
 	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
 	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
-	unsigned short		ili_flags;	   /* misc flags */
+	unsigned short		ili_lock_flags;	   /* lock flags */
 	unsigned short		ili_logged;	   /* flushed logged data */
 	unsigned int		ili_last_fields;   /* fields when flushed */
 	struct xfs_bmbt_rec	*ili_extents_buf;  /* array of logged
@@ -161,8 +155,8 @@ static inline int xfs_inode_clean(xfs_inode_t *ip)
 
 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
 extern void xfs_inode_item_destroy(struct xfs_inode *);
-extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
-extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
+extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *);
+extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *);
 extern void xfs_iflush_abort(struct xfs_inode *);
 extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
 					 xfs_inode_log_format_t *);
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index ef14943829da..20576146369f 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -23,19 +23,14 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
 #include "xfs_alloc.h"
-#include "xfs_dmapi.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ialloc.h"
 #include "xfs_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
@@ -123,7 +118,7 @@ xfs_iomap(
 	error = xfs_bmapi(NULL, ip, offset_fsb,
 			(xfs_filblks_t)(end_fsb - offset_fsb),
 			bmapi_flags,  NULL, 0, imap,
-			nimaps, NULL, NULL);
+			nimaps, NULL);
 
 	if (error)
 		goto out;
@@ -138,7 +133,7 @@ xfs_iomap(
 			break;
 		}
 
-		if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) {
+		if (flags & BMAPI_DIRECT) {
 			error = xfs_iomap_write_direct(ip, offset, count, flags,
 						       imap, nimaps);
 		} else {
@@ -247,7 +242,7 @@ xfs_iomap_write_direct(
 	xfs_off_t	offset,
 	size_t		count,
 	int		flags,
-	xfs_bmbt_irec_t *ret_imap,
+	xfs_bmbt_irec_t *imap,
 	int		*nmaps)
 {
 	xfs_mount_t	*mp = ip->i_mount;
@@ -261,7 +256,6 @@ xfs_iomap_write_direct(
 	int		quota_flag;
 	int		rt;
 	xfs_trans_t	*tp;
-	xfs_bmbt_irec_t imap;
 	xfs_bmap_free_t free_list;
 	uint		qblocks, resblks, resrtextents;
 	int		committed;
@@ -285,10 +279,10 @@ xfs_iomap_write_direct(
 		if (error)
 			goto error_out;
 	} else {
-		if (*nmaps && (ret_imap->br_startblock == HOLESTARTBLOCK))
+		if (*nmaps && (imap->br_startblock == HOLESTARTBLOCK))
 			last_fsb = MIN(last_fsb, (xfs_fileoff_t)
-					ret_imap->br_blockcount +
-					ret_imap->br_startoff);
+					imap->br_blockcount +
+					imap->br_startoff);
 	}
 	count_fsb = last_fsb - offset_fsb;
 	ASSERT(count_fsb > 0);
@@ -334,20 +328,22 @@ xfs_iomap_write_direct(
 	if (error)
 		goto error1;
 
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 
 	bmapi_flag = XFS_BMAPI_WRITE;
 	if ((flags & BMAPI_DIRECT) && (offset < ip->i_size || extsz))
 		bmapi_flag |= XFS_BMAPI_PREALLOC;
 
 	/*
-	 * Issue the xfs_bmapi() call to allocate the blocks
+	 * Issue the xfs_bmapi() call to allocate the blocks.
+	 *
+	 * From this point onwards we overwrite the imap pointer that the
+	 * caller gave to us.
 	 */
 	xfs_bmap_init(&free_list, &firstfsb);
 	nimaps = 1;
 	error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, bmapi_flag,
-		&firstfsb, 0, &imap, &nimaps, &free_list, NULL);
+		&firstfsb, 0, imap, &nimaps, &free_list);
 	if (error)
 		goto error0;
 
@@ -369,12 +365,11 @@ xfs_iomap_write_direct(
 		goto error_out;
 	}
 
-	if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) {
-		error = xfs_cmn_err_fsblock_zero(ip, &imap);
+	if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip))) {
+		error = xfs_cmn_err_fsblock_zero(ip, imap);
 		goto error_out;
 	}
 
-	*ret_imap = imap;
 	*nmaps = 1;
 	return 0;
 
@@ -425,7 +420,7 @@ xfs_iomap_eof_want_preallocate(
 		imaps = nimaps;
 		firstblock = NULLFSBLOCK;
 		error = xfs_bmapi(NULL, ip, start_fsb, count_fsb, 0,
-				  &firstblock, 0, imap, &imaps, NULL, NULL);
+				  &firstblock, 0, imap, &imaps, NULL);
 		if (error)
 			return error;
 		for (n = 0; n < imaps; n++) {
@@ -500,7 +495,7 @@ retry:
 			  (xfs_filblks_t)(last_fsb - offset_fsb),
 			  XFS_BMAPI_DELAY | XFS_BMAPI_WRITE |
 			  XFS_BMAPI_ENTIRE, &firstblock, 1, imap,
-			  &nimaps, NULL, NULL);
+			  &nimaps, NULL);
 	if (error && (error != ENOSPC))
 		return XFS_ERROR(error);
 
@@ -548,7 +543,7 @@ xfs_iomap_write_allocate(
 	xfs_inode_t	*ip,
 	xfs_off_t	offset,
 	size_t		count,
-	xfs_bmbt_irec_t *map,
+	xfs_bmbt_irec_t *imap,
 	int		*retmap)
 {
 	xfs_mount_t	*mp = ip->i_mount;
@@ -557,7 +552,6 @@ xfs_iomap_write_allocate(
 	xfs_fsblock_t	first_block;
 	xfs_bmap_free_t	free_list;
 	xfs_filblks_t	count_fsb;
-	xfs_bmbt_irec_t	imap;
 	xfs_trans_t	*tp;
 	int		nimaps, committed;
 	int		error = 0;
@@ -573,8 +567,8 @@ xfs_iomap_write_allocate(
 		return XFS_ERROR(error);
 
 	offset_fsb = XFS_B_TO_FSBT(mp, offset);
-	count_fsb = map->br_blockcount;
-	map_start_fsb = map->br_startoff;
+	count_fsb = imap->br_blockcount;
+	map_start_fsb = imap->br_startoff;
 
 	XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb));
 
@@ -602,8 +596,7 @@ xfs_iomap_write_allocate(
 				return XFS_ERROR(error);
 			}
 			xfs_ilock(ip, XFS_ILOCK_EXCL);
-			xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-			xfs_trans_ihold(tp, ip);
+			xfs_trans_ijoin(tp, ip);
 
 			xfs_bmap_init(&free_list, &first_block);
 
@@ -654,10 +647,15 @@ xfs_iomap_write_allocate(
 				}
 			}
 
-			/* Go get the actual blocks */
+			/*
+			 * Go get the actual blocks.
+	 	 	 *
+			 * From this point onwards we overwrite the imap
+			 * pointer that the caller gave to us.
+			 */
 			error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb,
 					XFS_BMAPI_WRITE, &first_block, 1,
-					&imap, &nimaps, &free_list, NULL);
+					imap, &nimaps, &free_list);
 			if (error)
 				goto trans_cancel;
 
@@ -676,13 +674,12 @@ xfs_iomap_write_allocate(
 		 * See if we were able to allocate an extent that
 		 * covers at least part of the callers request
 		 */
-		if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
-			return xfs_cmn_err_fsblock_zero(ip, &imap);
+		if (!(imap->br_startblock || XFS_IS_REALTIME_INODE(ip)))
+			return xfs_cmn_err_fsblock_zero(ip, imap);
 
-		if ((offset_fsb >= imap.br_startoff) &&
-		    (offset_fsb < (imap.br_startoff +
-				   imap.br_blockcount))) {
-			*map = imap;
+		if ((offset_fsb >= imap->br_startoff) &&
+		    (offset_fsb < (imap->br_startoff +
+				   imap->br_blockcount))) {
 			*retmap = 1;
 			XFS_STATS_INC(xs_xstrat_quick);
 			return 0;
@@ -692,8 +689,8 @@ xfs_iomap_write_allocate(
 		 * So far we have not mapped the requested part of the
 		 * file, just surrounding data, try again.
 		 */
-		count_fsb -= imap.br_blockcount;
-		map_start_fsb = imap.br_startoff + imap.br_blockcount;
+		count_fsb -= imap->br_blockcount;
+		map_start_fsb = imap->br_startoff + imap->br_blockcount;
 	}
 
 trans_cancel:
@@ -766,8 +763,7 @@ xfs_iomap_write_unwritten(
 		}
 
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		/*
 		 * Modify the unwritten extent state of the buffer.
@@ -776,7 +772,7 @@ xfs_iomap_write_unwritten(
 		nimaps = 1;
 		error = xfs_bmapi(tp, ip, offset_fsb, count_fsb,
 				  XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb,
-				  1, &imap, &nimaps, &free_list, NULL);
+				  1, &imap, &nimaps, &free_list);
 		if (error)
 			goto error_on_bmapi_transaction;
 
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index 81ac4afd45b3..7748a430f50d 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -18,17 +18,16 @@
 #ifndef __XFS_IOMAP_H__
 #define __XFS_IOMAP_H__
 
-typedef enum {
-	/* base extent manipulation calls */
-	BMAPI_READ = (1 << 0),		/* read extents */
-	BMAPI_WRITE = (1 << 1),		/* create extents */
-	BMAPI_ALLOCATE = (1 << 2),	/* delayed allocate to real extents */
-	/* modifiers */
-	BMAPI_IGNSTATE = (1 << 4),	/* ignore unwritten state on read */
-	BMAPI_DIRECT = (1 << 5),	/* direct instead of buffered write */
-	BMAPI_MMAP = (1 << 6),		/* allocate for mmap write */
-	BMAPI_TRYLOCK = (1 << 7),	/* non-blocking request */
-} bmapi_flags_t;
+/* base extent manipulation calls */
+#define BMAPI_READ	(1 << 0)	/* read extents */
+#define BMAPI_WRITE	(1 << 1)	/* create extents */
+#define BMAPI_ALLOCATE	(1 << 2)	/* delayed allocate to real extents */
+
+/* modifiers */
+#define BMAPI_IGNSTATE	(1 << 4)	/* ignore unwritten state on read */
+#define BMAPI_DIRECT	(1 << 5)	/* direct instead of buffered write */
+#define BMAPI_MMA	(1 << 6)	/* allocate for mmap write */
+#define BMAPI_TRYLOCK	(1 << 7)	/* non-blocking request */
 
 #define BMAPI_FLAGS \
 	{ BMAPI_READ,		"READ" }, \
@@ -36,7 +35,6 @@ typedef enum {
 	{ BMAPI_ALLOCATE,	"ALLOCATE" }, \
 	{ BMAPI_IGNSTATE,	"IGNSTATE" }, \
 	{ BMAPI_DIRECT,		"DIRECT" }, \
-	{ BMAPI_MMAP,		"MMAP" }, \
 	{ BMAPI_TRYLOCK,	"TRYLOCK" }
 
 struct xfs_inode;
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 2b86f8610512..dc1882adaf54 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -24,20 +24,17 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
 #include "xfs_btree.h"
+#include "xfs_trace.h"
 
 STATIC int
 xfs_internal_inum(
@@ -95,7 +92,8 @@ xfs_bulkstat_one_int(
 	 * further change.
 	 */
 	buf->bs_nlink = dic->di_nlink;
-	buf->bs_projid = dic->di_projid;
+	buf->bs_projid_lo = dic->di_projid_lo;
+	buf->bs_projid_hi = dic->di_projid_hi;
 	buf->bs_ino = ino;
 	buf->bs_mode = dic->di_mode;
 	buf->bs_uid = dic->di_uid;
@@ -143,7 +141,8 @@ xfs_bulkstat_one_int(
 		buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks;
 		break;
 	}
-	xfs_iput(ip, XFS_ILOCK_SHARED);
+	xfs_iunlock(ip, XFS_ILOCK_SHARED);
+	IRELE(ip);
 
 	error = formatter(buffer, ubsize, ubused, buf);
 
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5215abc8023a..cee4ab9f8a9e 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -24,8 +24,6 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
 #include "xfs_log_priv.h"
@@ -35,8 +33,6 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_log_recover.h"
 #include "xfs_trans_priv.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_rw.h"
@@ -337,7 +333,6 @@ xfs_log_reserve(
 	int			retval = 0;
 
 	ASSERT(client == XFS_TRANSACTION || client == XFS_LOG);
-	ASSERT((flags & XFS_LOG_NOSLEEP) == 0);
 
 	if (XLOG_FORCED_SHUTDOWN(log))
 		return XFS_ERROR(EIO);
@@ -552,7 +547,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 				.magic = XLOG_UNMOUNT_TYPE,
 			};
 			struct xfs_log_iovec reg = {
-				.i_addr = (void *)&magic,
+				.i_addr = &magic,
 				.i_len = sizeof(magic),
 				.i_type = XLOG_REG_TYPE_UNMOUNT,
 			};
@@ -922,19 +917,6 @@ xlog_iodone(xfs_buf_t *bp)
 	l = iclog->ic_log;
 
 	/*
-	 * If the _XFS_BARRIER_FAILED flag was set by a lower
-	 * layer, it means the underlying device no longer supports
-	 * barrier I/O. Warn loudly and turn off barriers.
-	 */
-	if (bp->b_flags & _XFS_BARRIER_FAILED) {
-		bp->b_flags &= ~_XFS_BARRIER_FAILED;
-		l->l_mp->m_flags &= ~XFS_MOUNT_BARRIER;
-		xfs_fs_cmn_err(CE_WARN, l->l_mp,
-				"xlog_iodone: Barriers are no longer supported"
-				" by device. Disabling barriers\n");
-	}
-
-	/*
 	 * Race to shutdown the filesystem if we see an error.
 	 */
 	if (XFS_TEST_ERROR((XFS_BUF_GETERROR(bp)), l->l_mp,
@@ -1047,7 +1029,6 @@ xlog_alloc_log(xfs_mount_t	*mp,
 	xlog_in_core_t		*iclog, *prev_iclog=NULL;
 	xfs_buf_t		*bp;
 	int			i;
-	int			iclogsize;
 	int			error = ENOMEM;
 	uint			log2_size = 0;
 
@@ -1127,7 +1108,6 @@ xlog_alloc_log(xfs_mount_t	*mp,
 	 * with different amounts of memory.  See the definition of
 	 * xlog_in_core_t in xfs_log_priv.h for details.
 	 */
-	iclogsize = log->l_iclog_size;
 	ASSERT(log->l_iclog_size >= 4096);
 	for (i=0; i < log->l_iclog_bufs; i++) {
 		*iclogp = kmem_zalloc(sizeof(xlog_in_core_t), KM_MAYFAIL);
@@ -1138,7 +1118,8 @@ xlog_alloc_log(xfs_mount_t	*mp,
 		iclog->ic_prev = prev_iclog;
 		prev_iclog = iclog;
 
-		bp = xfs_buf_get_noaddr(log->l_iclog_size, mp->m_logdev_targp);
+		bp = xfs_buf_get_uncached(mp->m_logdev_targp,
+						log->l_iclog_size, 0);
 		if (!bp)
 			goto out_free_iclog;
 		if (!XFS_BUF_CPSEMA(bp))
@@ -1316,7 +1297,7 @@ xlog_bdstrat(
 	if (iclog->ic_state & XLOG_STATE_IOERROR) {
 		XFS_BUF_ERROR(bp, EIO);
 		XFS_BUF_STALE(bp);
-		xfs_biodone(bp);
+		xfs_buf_ioend(bp, 0);
 		/*
 		 * It would seem logical to return EIO here, but we rely on
 		 * the log state machine to propagate I/O errors instead of
@@ -1428,11 +1409,8 @@ xlog_sync(xlog_t		*log,
 	XFS_BUF_BUSY(bp);
 	XFS_BUF_ASYNC(bp);
 	bp->b_flags |= XBF_LOG_BUFFER;
-	/*
-	 * Do an ordered write for the log block.
-	 * Its unnecessary to flush the first split block in the log wrap case.
-	 */
-	if (!split && (log->l_mp->m_flags & XFS_MOUNT_BARRIER))
+
+	if (log->l_mp->m_flags & XFS_MOUNT_BARRIER)
 		XFS_BUF_ORDERED(bp);
 
 	ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
@@ -3025,7 +3003,8 @@ _xfs_log_force(
 
 	XFS_STATS_INC(xs_log_force);
 
-	xlog_cil_push(log, 1);
+	if (log->l_cilp)
+		xlog_cil_force(log);
 
 	spin_lock(&log->l_icloglock);
 
@@ -3177,7 +3156,7 @@ _xfs_log_force_lsn(
 	XFS_STATS_INC(xs_log_force);
 
 	if (log->l_cilp) {
-		lsn = xlog_cil_push_lsn(log, lsn);
+		lsn = xlog_cil_force_lsn(log, lsn);
 		if (lsn == NULLCOMMITLSN)
 			return 0;
 	}
@@ -3734,7 +3713,7 @@ xfs_log_force_umount(
 	 * call below.
 	 */
 	if (!logerror && (mp->m_flags & XFS_MOUNT_DELAYLOG))
-		xlog_cil_push(log, 1);
+		xlog_cil_force(log);
 
 	/*
 	 * We must hold both the GRANT lock and the LOG lock,
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 04c78e642cc8..916eb7db14d9 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -55,14 +55,10 @@ static inline xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
 /*
  * Flags to xfs_log_reserve()
  *
- *	XFS_LOG_SLEEP:	 If space is not available, sleep (default)
- *	XFS_LOG_NOSLEEP: If space is not available, return error
  *	XFS_LOG_PERM_RESERV: Permanent reservation.  When writes are
  *		performed against this type of reservation, the reservation
  *		is not decreased.  Long running transactions should use this.
  */
-#define XFS_LOG_SLEEP		0x0
-#define XFS_LOG_NOSLEEP		0x1
 #define XFS_LOG_PERM_RESERV	0x2
 
 /*
@@ -104,7 +100,7 @@ static inline xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
 #define XLOG_REG_TYPE_MAX		19
 
 typedef struct xfs_log_iovec {
-	xfs_caddr_t	i_addr;		/* beginning address of region */
+	void		*i_addr;	/* beginning address of region */
 	int		i_len;		/* length in bytes of region */
 	uint		i_type;		/* type of region */
 } xfs_log_iovec_t;
@@ -201,9 +197,4 @@ int	xfs_log_commit_cil(struct xfs_mount *mp, struct xfs_trans *tp,
 bool	xfs_log_item_in_current_chkpt(struct xfs_log_item *lip);
 
 #endif
-
-
-extern int xlog_debug;		/* set to 1 to enable real log */
-
-
 #endif	/* __XFS_LOG_H__ */
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index bb17cc044bf3..23d6ceb5e97b 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -26,8 +26,6 @@
 #include "xfs_log_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
 #include "xfs_alloc.h"
@@ -70,6 +68,7 @@ xlog_cil_init(
 	ctx->sequence = 1;
 	ctx->cil = cil;
 	cil->xc_ctx = ctx;
+	cil->xc_current_sequence = ctx->sequence;
 
 	cil->xc_log = log;
 	log->l_cilp = cil;
@@ -147,102 +146,6 @@ xlog_cil_init_post_recovery(
 }
 
 /*
- * Insert the log item into the CIL and calculate the difference in space
- * consumed by the item. Add the space to the checkpoint ticket and calculate
- * if the change requires additional log metadata. If it does, take that space
- * as well. Remove the amount of space we addded to the checkpoint ticket from
- * the current transaction ticket so that the accounting works out correctly.
- *
- * If this is the first time the item is being placed into the CIL in this
- * context, pin it so it can't be written to disk until the CIL is flushed to
- * the iclog and the iclog written to disk.
- */
-static void
-xlog_cil_insert(
-	struct log		*log,
-	struct xlog_ticket	*ticket,
-	struct xfs_log_item	*item,
-	struct xfs_log_vec	*lv)
-{
-	struct xfs_cil		*cil = log->l_cilp;
-	struct xfs_log_vec	*old = lv->lv_item->li_lv;
-	struct xfs_cil_ctx	*ctx = cil->xc_ctx;
-	int			len;
-	int			diff_iovecs;
-	int			iclog_space;
-
-	if (old) {
-		/* existing lv on log item, space used is a delta */
-		ASSERT(!list_empty(&item->li_cil));
-		ASSERT(old->lv_buf && old->lv_buf_len && old->lv_niovecs);
-
-		len = lv->lv_buf_len - old->lv_buf_len;
-		diff_iovecs = lv->lv_niovecs - old->lv_niovecs;
-		kmem_free(old->lv_buf);
-		kmem_free(old);
-	} else {
-		/* new lv, must pin the log item */
-		ASSERT(!lv->lv_item->li_lv);
-		ASSERT(list_empty(&item->li_cil));
-
-		len = lv->lv_buf_len;
-		diff_iovecs = lv->lv_niovecs;
-		IOP_PIN(lv->lv_item);
-
-	}
-	len += diff_iovecs * sizeof(xlog_op_header_t);
-
-	/* attach new log vector to log item */
-	lv->lv_item->li_lv = lv;
-
-	spin_lock(&cil->xc_cil_lock);
-	list_move_tail(&item->li_cil, &cil->xc_cil);
-	ctx->nvecs += diff_iovecs;
-
-	/*
-	 * If this is the first time the item is being committed to the CIL,
-	 * store the sequence number on the log item so we can tell
-	 * in future commits whether this is the first checkpoint the item is
-	 * being committed into.
-	 */
-	if (!item->li_seq)
-		item->li_seq = ctx->sequence;
-
-	/*
-	 * Now transfer enough transaction reservation to the context ticket
-	 * for the checkpoint. The context ticket is special - the unit
-	 * reservation has to grow as well as the current reservation as we
-	 * steal from tickets so we can correctly determine the space used
-	 * during the transaction commit.
-	 */
-	if (ctx->ticket->t_curr_res == 0) {
-		/* first commit in checkpoint, steal the header reservation */
-		ASSERT(ticket->t_curr_res >= ctx->ticket->t_unit_res + len);
-		ctx->ticket->t_curr_res = ctx->ticket->t_unit_res;
-		ticket->t_curr_res -= ctx->ticket->t_unit_res;
-	}
-
-	/* do we need space for more log record headers? */
-	iclog_space = log->l_iclog_size - log->l_iclog_hsize;
-	if (len > 0 && (ctx->space_used / iclog_space !=
-				(ctx->space_used + len) / iclog_space)) {
-		int hdrs;
-
-		hdrs = (len + iclog_space - 1) / iclog_space;
-		/* need to take into account split region headers, too */
-		hdrs *= log->l_iclog_hsize + sizeof(struct xlog_op_header);
-		ctx->ticket->t_unit_res += hdrs;
-		ctx->ticket->t_curr_res += hdrs;
-		ticket->t_curr_res -= hdrs;
-		ASSERT(ticket->t_curr_res >= len);
-	}
-	ticket->t_curr_res -= len;
-	ctx->space_used += len;
-
-	spin_unlock(&cil->xc_cil_lock);
-}
-
-/*
  * Format log item into a flat buffers
  *
  * For delayed logging, we need to hold a formatted buffer containing all the
@@ -271,15 +174,10 @@ xlog_cil_insert(
 static void
 xlog_cil_format_items(
 	struct log		*log,
-	struct xfs_log_vec	*log_vector,
-	struct xlog_ticket	*ticket,
-	xfs_lsn_t		*start_lsn)
+	struct xfs_log_vec	*log_vector)
 {
 	struct xfs_log_vec *lv;
 
-	if (start_lsn)
-		*start_lsn = log->l_cilp->xc_ctx->sequence;
-
 	ASSERT(log_vector);
 	for (lv = log_vector; lv; lv = lv->lv_next) {
 		void	*ptr;
@@ -292,7 +190,7 @@ xlog_cil_format_items(
 			len += lv->lv_iovecp[index].i_len;
 
 		lv->lv_buf_len = len;
-		lv->lv_buf = kmem_zalloc(lv->lv_buf_len, KM_SLEEP|KM_NOFS);
+		lv->lv_buf = kmem_alloc(lv->lv_buf_len, KM_SLEEP|KM_NOFS);
 		ptr = lv->lv_buf;
 
 		for (index = 0; index < lv->lv_niovecs; index++) {
@@ -303,97 +201,153 @@ xlog_cil_format_items(
 			ptr += vec->i_len;
 		}
 		ASSERT(ptr == lv->lv_buf + lv->lv_buf_len);
-
-		xlog_cil_insert(log, ticket, lv->lv_item, lv);
 	}
 }
 
-static void
-xlog_cil_free_logvec(
-	struct xfs_log_vec	*log_vector)
+/*
+ * Prepare the log item for insertion into the CIL. Calculate the difference in
+ * log space and vectors it will consume, and if it is a new item pin it as
+ * well.
+ */
+STATIC void
+xfs_cil_prepare_item(
+	struct log		*log,
+	struct xfs_log_vec	*lv,
+	int			*len,
+	int			*diff_iovecs)
 {
-	struct xfs_log_vec	*lv;
+	struct xfs_log_vec	*old = lv->lv_item->li_lv;
+
+	if (old) {
+		/* existing lv on log item, space used is a delta */
+		ASSERT(!list_empty(&lv->lv_item->li_cil));
+		ASSERT(old->lv_buf && old->lv_buf_len && old->lv_niovecs);
+
+		*len += lv->lv_buf_len - old->lv_buf_len;
+		*diff_iovecs += lv->lv_niovecs - old->lv_niovecs;
+		kmem_free(old->lv_buf);
+		kmem_free(old);
+	} else {
+		/* new lv, must pin the log item */
+		ASSERT(!lv->lv_item->li_lv);
+		ASSERT(list_empty(&lv->lv_item->li_cil));
+
+		*len += lv->lv_buf_len;
+		*diff_iovecs += lv->lv_niovecs;
+		IOP_PIN(lv->lv_item);
 
-	for (lv = log_vector; lv; ) {
-		struct xfs_log_vec *next = lv->lv_next;
-		kmem_free(lv->lv_buf);
-		kmem_free(lv);
-		lv = next;
 	}
+
+	/* attach new log vector to log item */
+	lv->lv_item->li_lv = lv;
+
+	/*
+	 * If this is the first time the item is being committed to the
+	 * CIL, store the sequence number on the log item so we can
+	 * tell in future commits whether this is the first checkpoint
+	 * the item is being committed into.
+	 */
+	if (!lv->lv_item->li_seq)
+		lv->lv_item->li_seq = log->l_cilp->xc_ctx->sequence;
 }
 
 /*
- * Commit a transaction with the given vector to the Committed Item List.
- *
- * To do this, we need to format the item, pin it in memory if required and
- * account for the space used by the transaction. Once we have done that we
- * need to release the unused reservation for the transaction, attach the
- * transaction to the checkpoint context so we carry the busy extents through
- * to checkpoint completion, and then unlock all the items in the transaction.
- *
- * For more specific information about the order of operations in
- * xfs_log_commit_cil() please refer to the comments in
- * xfs_trans_commit_iclog().
- *
- * Called with the context lock already held in read mode to lock out
- * background commit, returns without it held once background commits are
- * allowed again.
+ * Insert the log items into the CIL and calculate the difference in space
+ * consumed by the item. Add the space to the checkpoint ticket and calculate
+ * if the change requires additional log metadata. If it does, take that space
+ * as well. Remove the amount of space we addded to the checkpoint ticket from
+ * the current transaction ticket so that the accounting works out correctly.
  */
-int
-xfs_log_commit_cil(
-	struct xfs_mount	*mp,
-	struct xfs_trans	*tp,
+static void
+xlog_cil_insert_items(
+	struct log		*log,
 	struct xfs_log_vec	*log_vector,
-	xfs_lsn_t		*commit_lsn,
-	int			flags)
+	struct xlog_ticket	*ticket)
 {
-	struct log		*log = mp->m_log;
-	int			log_flags = 0;
-	int			push = 0;
-
-	if (flags & XFS_TRANS_RELEASE_LOG_RES)
-		log_flags = XFS_LOG_REL_PERM_RESERV;
+	struct xfs_cil		*cil = log->l_cilp;
+	struct xfs_cil_ctx	*ctx = cil->xc_ctx;
+	struct xfs_log_vec	*lv;
+	int			len = 0;
+	int			diff_iovecs = 0;
+	int			iclog_space;
 
-	if (XLOG_FORCED_SHUTDOWN(log)) {
-		xlog_cil_free_logvec(log_vector);
-		return XFS_ERROR(EIO);
-	}
+	ASSERT(log_vector);
 
-	/* lock out background commit */
-	down_read(&log->l_cilp->xc_ctx_lock);
-	xlog_cil_format_items(log, log_vector, tp->t_ticket, commit_lsn);
+	/*
+	 * Do all the accounting aggregation and switching of log vectors
+	 * around in a separate loop to the insertion of items into the CIL.
+	 * Then we can do a separate loop to update the CIL within a single
+	 * lock/unlock pair. This reduces the number of round trips on the CIL
+	 * lock from O(nr_logvectors) to O(1) and greatly reduces the overall
+	 * hold time for the transaction commit.
+	 *
+	 * If this is the first time the item is being placed into the CIL in
+	 * this context, pin it so it can't be written to disk until the CIL is
+	 * flushed to the iclog and the iclog written to disk.
+	 *
+	 * We can do this safely because the context can't checkpoint until we
+	 * are done so it doesn't matter exactly how we update the CIL.
+	 */
+	for (lv = log_vector; lv; lv = lv->lv_next)
+		xfs_cil_prepare_item(log, lv, &len, &diff_iovecs);
 
-	/* check we didn't blow the reservation */
-	if (tp->t_ticket->t_curr_res < 0)
-		xlog_print_tic_res(log->l_mp, tp->t_ticket);
+	/* account for space used by new iovec headers  */
+	len += diff_iovecs * sizeof(xlog_op_header_t);
 
-	/* attach the transaction to the CIL if it has any busy extents */
-	if (!list_empty(&tp->t_busy)) {
-		spin_lock(&log->l_cilp->xc_cil_lock);
-		list_splice_init(&tp->t_busy,
-					&log->l_cilp->xc_ctx->busy_extents);
-		spin_unlock(&log->l_cilp->xc_cil_lock);
-	}
+	spin_lock(&cil->xc_cil_lock);
 
-	tp->t_commit_lsn = *commit_lsn;
-	xfs_log_done(mp, tp->t_ticket, NULL, log_flags);
-	xfs_trans_unreserve_and_mod_sb(tp);
+	/* move the items to the tail of the CIL */
+	for (lv = log_vector; lv; lv = lv->lv_next)
+		list_move_tail(&lv->lv_item->li_cil, &cil->xc_cil);
 
-	/* check for background commit before unlock */
-	if (log->l_cilp->xc_ctx->space_used > XLOG_CIL_SPACE_LIMIT(log))
-		push = 1;
-	up_read(&log->l_cilp->xc_ctx_lock);
+	ctx->nvecs += diff_iovecs;
 
 	/*
-	 * We need to push CIL every so often so we don't cache more than we
-	 * can fit in the log. The limit really is that a checkpoint can't be
-	 * more than half the log (the current checkpoint is not allowed to
-	 * overwrite the previous checkpoint), but commit latency and memory
-	 * usage limit this to a smaller size in most cases.
+	 * Now transfer enough transaction reservation to the context ticket
+	 * for the checkpoint. The context ticket is special - the unit
+	 * reservation has to grow as well as the current reservation as we
+	 * steal from tickets so we can correctly determine the space used
+	 * during the transaction commit.
 	 */
-	if (push)
-		xlog_cil_push(log, 0);
-	return 0;
+	if (ctx->ticket->t_curr_res == 0) {
+		/* first commit in checkpoint, steal the header reservation */
+		ASSERT(ticket->t_curr_res >= ctx->ticket->t_unit_res + len);
+		ctx->ticket->t_curr_res = ctx->ticket->t_unit_res;
+		ticket->t_curr_res -= ctx->ticket->t_unit_res;
+	}
+
+	/* do we need space for more log record headers? */
+	iclog_space = log->l_iclog_size - log->l_iclog_hsize;
+	if (len > 0 && (ctx->space_used / iclog_space !=
+				(ctx->space_used + len) / iclog_space)) {
+		int hdrs;
+
+		hdrs = (len + iclog_space - 1) / iclog_space;
+		/* need to take into account split region headers, too */
+		hdrs *= log->l_iclog_hsize + sizeof(struct xlog_op_header);
+		ctx->ticket->t_unit_res += hdrs;
+		ctx->ticket->t_curr_res += hdrs;
+		ticket->t_curr_res -= hdrs;
+		ASSERT(ticket->t_curr_res >= len);
+	}
+	ticket->t_curr_res -= len;
+	ctx->space_used += len;
+
+	spin_unlock(&cil->xc_cil_lock);
+}
+
+static void
+xlog_cil_free_logvec(
+	struct xfs_log_vec	*log_vector)
+{
+	struct xfs_log_vec	*lv;
+
+	for (lv = log_vector; lv; ) {
+		struct xfs_log_vec *next = lv->lv_next;
+		kmem_free(lv->lv_buf);
+		kmem_free(lv);
+		lv = next;
+	}
 }
 
 /*
@@ -429,13 +383,23 @@ xlog_cil_committed(
 }
 
 /*
- * Push the Committed Item List to the log. If the push_now flag is not set,
- * then it is a background flush and so we can chose to ignore it.
+ * Push the Committed Item List to the log. If @push_seq flag is zero, then it
+ * is a background flush and so we can chose to ignore it. Otherwise, if the
+ * current sequence is the same as @push_seq we need to do a flush. If
+ * @push_seq is less than the current sequence, then it has already been
+ * flushed and we don't need to do anything - the caller will wait for it to
+ * complete if necessary.
+ *
+ * @push_seq is a value rather than a flag because that allows us to do an
+ * unlocked check of the sequence number for a match. Hence we can allows log
+ * forces to run racily and not issue pushes for the same sequence twice. If we
+ * get a race between multiple pushes for the same sequence they will block on
+ * the first one and then abort, hence avoiding needless pushes.
  */
-int
+STATIC int
 xlog_cil_push(
 	struct log		*log,
-	int			push_now)
+	xfs_lsn_t		push_seq)
 {
 	struct xfs_cil		*cil = log->l_cilp;
 	struct xfs_log_vec	*lv;
@@ -455,12 +419,20 @@ xlog_cil_push(
 	if (!cil)
 		return 0;
 
+	ASSERT(!push_seq || push_seq <= cil->xc_ctx->sequence);
+
 	new_ctx = kmem_zalloc(sizeof(*new_ctx), KM_SLEEP|KM_NOFS);
 	new_ctx->ticket = xlog_cil_ticket_alloc(log);
 
-	/* lock out transaction commit, but don't block on background push */
+	/*
+	 * Lock out transaction commit, but don't block for background pushes
+	 * unless we are well over the CIL space limit. See the definition of
+	 * XLOG_CIL_HARD_SPACE_LIMIT() for the full explanation of the logic
+	 * used here.
+	 */
 	if (!down_write_trylock(&cil->xc_ctx_lock)) {
-		if (!push_now)
+		if (!push_seq &&
+		    cil->xc_ctx->space_used < XLOG_CIL_HARD_SPACE_LIMIT(log))
 			goto out_free_ticket;
 		down_write(&cil->xc_ctx_lock);
 	}
@@ -471,7 +443,11 @@ xlog_cil_push(
 		goto out_skip;
 
 	/* check for spurious background flush */
-	if (!push_now && cil->xc_ctx->space_used < XLOG_CIL_SPACE_LIMIT(log))
+	if (!push_seq && cil->xc_ctx->space_used < XLOG_CIL_SPACE_LIMIT(log))
+		goto out_skip;
+
+	/* check for a previously pushed seqeunce */
+	if (push_seq && push_seq < cil->xc_ctx->sequence)
 		goto out_skip;
 
 	/*
@@ -517,6 +493,13 @@ xlog_cil_push(
 	cil->xc_ctx = new_ctx;
 
 	/*
+	 * mirror the new sequence into the cil structure so that we can do
+	 * unlocked checks against the current sequence in log forces without
+	 * risking deferencing a freed context pointer.
+	 */
+	cil->xc_current_sequence = new_ctx->sequence;
+
+	/*
 	 * The switch is now done, so we can drop the context lock and move out
 	 * of a shared context. We can't just go straight to the commit record,
 	 * though - we need to synchronise with previous and future commits so
@@ -554,7 +537,7 @@ xlog_cil_push(
 	thdr.th_type = XFS_TRANS_CHECKPOINT;
 	thdr.th_tid = tic->t_tid;
 	thdr.th_num_items = num_iovecs;
-	lhdr.i_addr = (xfs_caddr_t)&thdr;
+	lhdr.i_addr = &thdr;
 	lhdr.i_len = sizeof(xfs_trans_header_t);
 	lhdr.i_type = XLOG_REG_TYPE_TRANSHDR;
 	tic->t_curr_res -= lhdr.i_len + sizeof(xlog_op_header_t);
@@ -628,6 +611,105 @@ out_abort:
 }
 
 /*
+ * Commit a transaction with the given vector to the Committed Item List.
+ *
+ * To do this, we need to format the item, pin it in memory if required and
+ * account for the space used by the transaction. Once we have done that we
+ * need to release the unused reservation for the transaction, attach the
+ * transaction to the checkpoint context so we carry the busy extents through
+ * to checkpoint completion, and then unlock all the items in the transaction.
+ *
+ * For more specific information about the order of operations in
+ * xfs_log_commit_cil() please refer to the comments in
+ * xfs_trans_commit_iclog().
+ *
+ * Called with the context lock already held in read mode to lock out
+ * background commit, returns without it held once background commits are
+ * allowed again.
+ */
+int
+xfs_log_commit_cil(
+	struct xfs_mount	*mp,
+	struct xfs_trans	*tp,
+	struct xfs_log_vec	*log_vector,
+	xfs_lsn_t		*commit_lsn,
+	int			flags)
+{
+	struct log		*log = mp->m_log;
+	int			log_flags = 0;
+	int			push = 0;
+
+	if (flags & XFS_TRANS_RELEASE_LOG_RES)
+		log_flags = XFS_LOG_REL_PERM_RESERV;
+
+	if (XLOG_FORCED_SHUTDOWN(log)) {
+		xlog_cil_free_logvec(log_vector);
+		return XFS_ERROR(EIO);
+	}
+
+	/*
+	 * do all the hard work of formatting items (including memory
+	 * allocation) outside the CIL context lock. This prevents stalling CIL
+	 * pushes when we are low on memory and a transaction commit spends a
+	 * lot of time in memory reclaim.
+	 */
+	xlog_cil_format_items(log, log_vector);
+
+	/* lock out background commit */
+	down_read(&log->l_cilp->xc_ctx_lock);
+	if (commit_lsn)
+		*commit_lsn = log->l_cilp->xc_ctx->sequence;
+
+	xlog_cil_insert_items(log, log_vector, tp->t_ticket);
+
+	/* check we didn't blow the reservation */
+	if (tp->t_ticket->t_curr_res < 0)
+		xlog_print_tic_res(log->l_mp, tp->t_ticket);
+
+	/* attach the transaction to the CIL if it has any busy extents */
+	if (!list_empty(&tp->t_busy)) {
+		spin_lock(&log->l_cilp->xc_cil_lock);
+		list_splice_init(&tp->t_busy,
+					&log->l_cilp->xc_ctx->busy_extents);
+		spin_unlock(&log->l_cilp->xc_cil_lock);
+	}
+
+	tp->t_commit_lsn = *commit_lsn;
+	xfs_log_done(mp, tp->t_ticket, NULL, log_flags);
+	xfs_trans_unreserve_and_mod_sb(tp);
+
+	/*
+	 * Once all the items of the transaction have been copied to the CIL,
+	 * the items can be unlocked and freed.
+	 *
+	 * This needs to be done before we drop the CIL context lock because we
+	 * have to update state in the log items and unlock them before they go
+	 * to disk. If we don't, then the CIL checkpoint can race with us and
+	 * we can run checkpoint completion before we've updated and unlocked
+	 * the log items. This affects (at least) processing of stale buffers,
+	 * inodes and EFIs.
+	 */
+	xfs_trans_free_items(tp, *commit_lsn, 0);
+
+	/* check for background commit before unlock */
+	if (log->l_cilp->xc_ctx->space_used > XLOG_CIL_SPACE_LIMIT(log))
+		push = 1;
+
+	up_read(&log->l_cilp->xc_ctx_lock);
+
+	/*
+	 * We need to push CIL every so often so we don't cache more than we
+	 * can fit in the log. The limit really is that a checkpoint can't be
+	 * more than half the log (the current checkpoint is not allowed to
+	 * overwrite the previous checkpoint), but commit latency and memory
+	 * usage limit this to a smaller size in most cases.
+	 */
+	if (push)
+		xlog_cil_push(log, 0);
+	return 0;
+}
+
+/*
  * Conditionally push the CIL based on the sequence passed in.
  *
  * We only need to push if we haven't already pushed the sequence
@@ -641,39 +723,34 @@ out_abort:
  * commit lsn is there. It'll be empty, so this is broken for now.
  */
 xfs_lsn_t
-xlog_cil_push_lsn(
+xlog_cil_force_lsn(
 	struct log	*log,
-	xfs_lsn_t	push_seq)
+	xfs_lsn_t	sequence)
 {
 	struct xfs_cil		*cil = log->l_cilp;
 	struct xfs_cil_ctx	*ctx;
 	xfs_lsn_t		commit_lsn = NULLCOMMITLSN;
 
-restart:
-	down_write(&cil->xc_ctx_lock);
-	ASSERT(push_seq <= cil->xc_ctx->sequence);
-
-	/* check to see if we need to force out the current context */
-	if (push_seq == cil->xc_ctx->sequence) {
-		up_write(&cil->xc_ctx_lock);
-		xlog_cil_push(log, 1);
-		goto restart;
-	}
+	ASSERT(sequence <= cil->xc_current_sequence);
+
+	/*
+	 * check to see if we need to force out the current context.
+	 * xlog_cil_push() handles racing pushes for the same sequence,
+	 * so no need to deal with it here.
+	 */
+	if (sequence == cil->xc_current_sequence)
+		xlog_cil_push(log, sequence);
 
 	/*
 	 * See if we can find a previous sequence still committing.
-	 * We can drop the flush lock as soon as we have the cil lock
-	 * because we are now only comparing contexts protected by
-	 * the cil lock.
-	 *
 	 * We need to wait for all previous sequence commits to complete
 	 * before allowing the force of push_seq to go ahead. Hence block
 	 * on commits for those as well.
 	 */
+restart:
 	spin_lock(&cil->xc_cil_lock);
-	up_write(&cil->xc_ctx_lock);
 	list_for_each_entry(ctx, &cil->xc_committing, committing) {
-		if (ctx->sequence > push_seq)
+		if (ctx->sequence > sequence)
 			continue;
 		if (!ctx->commit_lsn) {
 			/*
@@ -683,7 +760,7 @@ restart:
 			sv_wait(&cil->xc_commit_wait, 0, &cil->xc_cil_lock, 0);
 			goto restart;
 		}
-		if (ctx->sequence != push_seq)
+		if (ctx->sequence != sequence)
 			continue;
 		/* found it! */
 		commit_lsn = ctx->commit_lsn;
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 8c072618965c..edcdfe01617f 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -422,16 +422,17 @@ struct xfs_cil {
 	struct rw_semaphore	xc_ctx_lock;
 	struct list_head	xc_committing;
 	sv_t			xc_commit_wait;
+	xfs_lsn_t		xc_current_sequence;
 };
 
 /*
- * The amount of log space we should the CIL to aggregate is difficult to size.
- * Whatever we chose we have to make we can get a reservation for the log space
- * effectively, that it is large enough to capture sufficient relogging to
- * reduce log buffer IO significantly, but it is not too large for the log or
- * induces too much latency when writing out through the iclogs. We track both
- * space consumed and the number of vectors in the checkpoint context, so we
- * need to decide which to use for limiting.
+ * The amount of log space we allow the CIL to aggregate is difficult to size.
+ * Whatever we choose, we have to make sure we can get a reservation for the
+ * log space effectively, that it is large enough to capture sufficient
+ * relogging to reduce log buffer IO significantly, but it is not too large for
+ * the log or induces too much latency when writing out through the iclogs. We
+ * track both space consumed and the number of vectors in the checkpoint
+ * context, so we need to decide which to use for limiting.
  *
  * Every log buffer we write out during a push needs a header reserved, which
  * is at least one sector and more for v2 logs. Hence we need a reservation of
@@ -458,16 +459,21 @@ struct xfs_cil {
  * checkpoint transaction ticket is specific to the checkpoint context, rather
  * than the CIL itself.
  *
- * With dynamic reservations, we can basically make up arbitrary limits for the
- * checkpoint size so long as they don't violate any other size rules.  Hence
- * the initial maximum size for the checkpoint transaction will be set to a
- * quarter of the log or 8MB, which ever is smaller. 8MB is an arbitrary limit
- * right now based on the latency of writing out a large amount of data through
- * the circular iclog buffers.
+ * With dynamic reservations, we can effectively make up arbitrary limits for
+ * the checkpoint size so long as they don't violate any other size rules.
+ * Recovery imposes a rule that no transaction exceed half the log, so we are
+ * limited by that.  Furthermore, the log transaction reservation subsystem
+ * tries to keep 25% of the log free, so we need to keep below that limit or we
+ * risk running out of free log space to start any new transactions.
+ *
+ * In order to keep background CIL push efficient, we will set a lower
+ * threshold at which background pushing is attempted without blocking current
+ * transaction commits.  A separate, higher bound defines when CIL pushes are
+ * enforced to ensure we stay within our maximum checkpoint size bounds.
+ * threshold, yet give us plenty of space for aggregation on large logs.
  */
-
-#define XLOG_CIL_SPACE_LIMIT(log)	\
-	(min((log->l_logsize >> 2), (8 * 1024 * 1024)))
+#define XLOG_CIL_SPACE_LIMIT(log)	(log->l_logsize >> 3)
+#define XLOG_CIL_HARD_SPACE_LIMIT(log)	(3 * (log->l_logsize >> 4))
 
 /*
  * The reservation head lsn is not made up of a cycle number and block number.
@@ -562,8 +568,16 @@ int	xlog_cil_init(struct log *log);
 void	xlog_cil_init_post_recovery(struct log *log);
 void	xlog_cil_destroy(struct log *log);
 
-int	xlog_cil_push(struct log *log, int push_now);
-xfs_lsn_t xlog_cil_push_lsn(struct log *log, xfs_lsn_t push_sequence);
+/*
+ * CIL force routines
+ */
+xfs_lsn_t xlog_cil_force_lsn(struct log *log, xfs_lsn_t sequence);
+
+static inline void
+xlog_cil_force(struct log *log)
+{
+	xlog_cil_force_lsn(log, log->l_cilp->xc_current_sequence);
+}
 
 /*
  * Unmount record type is used as a pseudo transaction type for the ticket.
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9ac5cfab27b9..966d3f97458c 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -24,15 +24,11 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
@@ -111,7 +107,8 @@ xlog_get_bp(
 		nbblks += log->l_sectBBsize;
 	nbblks = round_up(nbblks, log->l_sectBBsize);
 
-	return xfs_buf_get_noaddr(BBTOB(nbblks), log->l_mp->m_logdev_targp);
+	return xfs_buf_get_uncached(log->l_mp->m_logdev_targp,
+					BBTOB(nbblks), 0);
 }
 
 STATIC void
@@ -171,7 +168,7 @@ xlog_bread_noalign(
 	XFS_BUF_SET_TARGET(bp, log->l_mp->m_logdev_targp);
 
 	xfsbdstrat(log->l_mp, bp);
-	error = xfs_iowait(bp);
+	error = xfs_buf_iowait(bp);
 	if (error)
 		xfs_ioerror_alert("xlog_bread", log->l_mp,
 				  bp, XFS_BUF_ADDR(bp));
@@ -325,12 +322,13 @@ xlog_recover_iodone(
 		 * this during recovery. One strike!
 		 */
 		xfs_ioerror_alert("xlog_recover_iodone",
-				  bp->b_mount, bp, XFS_BUF_ADDR(bp));
-		xfs_force_shutdown(bp->b_mount, SHUTDOWN_META_IO_ERROR);
+					bp->b_target->bt_mount, bp,
+					XFS_BUF_ADDR(bp));
+		xfs_force_shutdown(bp->b_target->bt_mount,
+					SHUTDOWN_META_IO_ERROR);
 	}
-	bp->b_mount = NULL;
 	XFS_BUF_CLR_IODONE_FUNC(bp);
-	xfs_biodone(bp);
+	xfs_buf_ioend(bp, 0);
 }
 
 /*
@@ -1565,9 +1563,7 @@ xlog_recover_reorder_trans(
 
 	list_splice_init(&trans->r_itemq, &sort_list);
 	list_for_each_entry_safe(item, n, &sort_list, ri_list) {
-		xfs_buf_log_format_t	*buf_f;
-
-		buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
+		xfs_buf_log_format_t	*buf_f = item->ri_buf[0].i_addr;
 
 		switch (ITEM_TYPE(item)) {
 		case XFS_LI_BUF:
@@ -1892,9 +1888,8 @@ xlog_recover_do_inode_buffer(
 		 * current di_next_unlinked field.  Extract its value
 		 * and copy it to the buffer copy.
 		 */
-		logged_nextp = (xfs_agino_t *)
-			       ((char *)(item->ri_buf[item_index].i_addr) +
-				(next_unlinked_offset - reg_buf_offset));
+		logged_nextp = item->ri_buf[item_index].i_addr +
+				next_unlinked_offset - reg_buf_offset;
 		if (unlikely(*logged_nextp == 0)) {
 			xfs_fs_cmn_err(CE_ALERT, mp,
 				"bad inode buffer log record (ptr = 0x%p, bp = 0x%p).  XFS trying to replay bad (0) inode di_next_unlinked field",
@@ -1973,8 +1968,7 @@ xlog_recover_do_reg_buffer(
 					item->ri_buf[i].i_len, __func__);
 				goto next;
 			}
-			error = xfs_qm_dqcheck((xfs_disk_dquot_t *)
-					       item->ri_buf[i].i_addr,
+			error = xfs_qm_dqcheck(item->ri_buf[i].i_addr,
 					       -1, 0, XFS_QMOPT_DOWARN,
 					       "dquot_buf_recover");
 			if (error)
@@ -2187,7 +2181,7 @@ xlog_recover_do_buffer_trans(
 	xlog_recover_item_t	*item,
 	int			pass)
 {
-	xfs_buf_log_format_t	*buf_f;
+	xfs_buf_log_format_t	*buf_f = item->ri_buf[0].i_addr;
 	xfs_mount_t		*mp;
 	xfs_buf_t		*bp;
 	int			error;
@@ -2197,8 +2191,6 @@ xlog_recover_do_buffer_trans(
 	ushort			flags;
 	uint			buf_flags;
 
-	buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
-
 	if (pass == XLOG_RECOVER_PASS1) {
 		/*
 		 * In this pass we're only looking for buf items
@@ -2285,8 +2277,7 @@ xlog_recover_do_buffer_trans(
 		XFS_BUF_STALE(bp);
 		error = xfs_bwrite(mp, bp);
 	} else {
-		ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
-		bp->b_mount = mp;
+		ASSERT(bp->b_target->bt_mount == mp);
 		XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
 		xfs_bdwrite(mp, bp);
 	}
@@ -2319,10 +2310,9 @@ xlog_recover_do_inode_trans(
 	}
 
 	if (item->ri_buf[0].i_len == sizeof(xfs_inode_log_format_t)) {
-		in_f = (xfs_inode_log_format_t *)item->ri_buf[0].i_addr;
+		in_f = item->ri_buf[0].i_addr;
 	} else {
-		in_f = (xfs_inode_log_format_t *)kmem_alloc(
-			sizeof(xfs_inode_log_format_t), KM_SLEEP);
+		in_f = kmem_alloc(sizeof(xfs_inode_log_format_t), KM_SLEEP);
 		need_free = 1;
 		error = xfs_inode_item_format_convert(&item->ri_buf[0], in_f);
 		if (error)
@@ -2370,7 +2360,7 @@ xlog_recover_do_inode_trans(
 		error = EFSCORRUPTED;
 		goto error;
 	}
-	dicp = (xfs_icdinode_t *)(item->ri_buf[1].i_addr);
+	dicp = item->ri_buf[1].i_addr;
 	if (unlikely(dicp->di_magic != XFS_DINODE_MAGIC)) {
 		xfs_buf_relse(bp);
 		xfs_fs_cmn_err(CE_ALERT, mp,
@@ -2461,7 +2451,7 @@ xlog_recover_do_inode_trans(
 	}
 
 	/* The core is in in-core format */
-	xfs_dinode_to_disk(dip, (xfs_icdinode_t *)item->ri_buf[1].i_addr);
+	xfs_dinode_to_disk(dip, item->ri_buf[1].i_addr);
 
 	/* the rest is in on-disk format */
 	if (item->ri_buf[1].i_len > sizeof(struct xfs_icdinode)) {
@@ -2551,8 +2541,7 @@ xlog_recover_do_inode_trans(
 	}
 
 write_inode_buffer:
-	ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
-	bp->b_mount = mp;
+	ASSERT(bp->b_target->bt_mount == mp);
 	XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
 	xfs_bdwrite(mp, bp);
 error:
@@ -2578,7 +2567,7 @@ xlog_recover_do_quotaoff_trans(
 		return (0);
 	}
 
-	qoff_f = (xfs_qoff_logformat_t *)item->ri_buf[0].i_addr;
+	qoff_f = item->ri_buf[0].i_addr;
 	ASSERT(qoff_f);
 
 	/*
@@ -2622,9 +2611,8 @@ xlog_recover_do_dquot_trans(
 	if (mp->m_qflags == 0)
 		return (0);
 
-	recddq = (xfs_disk_dquot_t *)item->ri_buf[1].i_addr;
-
-	if (item->ri_buf[1].i_addr == NULL) {
+	recddq = item->ri_buf[1].i_addr;
+	if (recddq == NULL) {
 		cmn_err(CE_ALERT,
 			"XFS: NULL dquot in %s.", __func__);
 		return XFS_ERROR(EIO);
@@ -2654,7 +2642,7 @@ xlog_recover_do_dquot_trans(
 	 * The other possibility, of course, is that the quota subsystem was
 	 * removed since the last mount - ENOSYS.
 	 */
-	dq_f = (xfs_dq_logformat_t *)item->ri_buf[0].i_addr;
+	dq_f = item->ri_buf[0].i_addr;
 	ASSERT(dq_f);
 	if ((error = xfs_qm_dqcheck(recddq,
 			   dq_f->qlf_id,
@@ -2690,8 +2678,7 @@ xlog_recover_do_dquot_trans(
 	memcpy(ddq, recddq, item->ri_buf[1].i_len);
 
 	ASSERT(dq_f->qlf_size == 2);
-	ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
-	bp->b_mount = mp;
+	ASSERT(bp->b_target->bt_mount == mp);
 	XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
 	xfs_bdwrite(mp, bp);
 
@@ -2721,7 +2708,7 @@ xlog_recover_do_efi_trans(
 		return 0;
 	}
 
-	efi_formatp = (xfs_efi_log_format_t *)item->ri_buf[0].i_addr;
+	efi_formatp = item->ri_buf[0].i_addr;
 
 	mp = log->l_mp;
 	efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
@@ -2767,7 +2754,7 @@ xlog_recover_do_efd_trans(
 		return;
 	}
 
-	efd_formatp = (xfs_efd_log_format_t *)item->ri_buf[0].i_addr;
+	efd_formatp = item->ri_buf[0].i_addr;
 	ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
 		((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
 	       (item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
@@ -3829,7 +3816,7 @@ xlog_do_recover(
 	XFS_BUF_READ(bp);
 	XFS_BUF_UNASYNC(bp);
 	xfsbdstrat(log->l_mp, bp);
-	error = xfs_iowait(bp);
+	error = xfs_buf_iowait(bp);
 	if (error) {
 		xfs_ioerror_alert("xlog_do_recover",
 				  log->l_mp, bp, XFS_BUF_ADDR(bp));
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 69f62d8b2816..b1498ab5a399 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -25,13 +25,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -55,16 +52,11 @@ STATIC void	xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t,
 						int);
 STATIC void	xfs_icsb_balance_counter_locked(xfs_mount_t *, xfs_sb_field_t,
 						int);
-STATIC int	xfs_icsb_modify_counters(xfs_mount_t *, xfs_sb_field_t,
-						int64_t, int);
 STATIC void	xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
-
 #else
 
 #define xfs_icsb_balance_counter(mp, a, b)		do { } while (0)
 #define xfs_icsb_balance_counter_locked(mp, a, b)	do { } while (0)
-#define xfs_icsb_modify_counters(mp, a, b, c)		do { } while (0)
-
 #endif
 
 static const struct {
@@ -202,6 +194,8 @@ xfs_uuid_unmount(
 
 /*
  * Reference counting access wrappers to the perag structures.
+ * Because we never free per-ag structures, the only thing we
+ * have to protect against changes is the tree structure itself.
  */
 struct xfs_perag *
 xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno)
@@ -209,19 +203,43 @@ xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno)
 	struct xfs_perag	*pag;
 	int			ref = 0;
 
-	spin_lock(&mp->m_perag_lock);
+	rcu_read_lock();
 	pag = radix_tree_lookup(&mp->m_perag_tree, agno);
 	if (pag) {
 		ASSERT(atomic_read(&pag->pag_ref) >= 0);
-		/* catch leaks in the positive direction during testing */
-		ASSERT(atomic_read(&pag->pag_ref) < 1000);
 		ref = atomic_inc_return(&pag->pag_ref);
 	}
-	spin_unlock(&mp->m_perag_lock);
+	rcu_read_unlock();
 	trace_xfs_perag_get(mp, agno, ref, _RET_IP_);
 	return pag;
 }
 
+/*
+ * search from @first to find the next perag with the given tag set.
+ */
+struct xfs_perag *
+xfs_perag_get_tag(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		first,
+	int			tag)
+{
+	struct xfs_perag	*pag;
+	int			found;
+	int			ref;
+
+	rcu_read_lock();
+	found = radix_tree_gang_lookup_tag(&mp->m_perag_tree,
+					(void **)&pag, first, 1, tag);
+	if (found <= 0) {
+		rcu_read_unlock();
+		return NULL;
+	}
+	ref = atomic_inc_return(&pag->pag_ref);
+	rcu_read_unlock();
+	trace_xfs_perag_get_tag(mp, pag->pag_agno, ref, _RET_IP_);
+	return pag;
+}
+
 void
 xfs_perag_put(struct xfs_perag *pag)
 {
@@ -232,10 +250,18 @@ xfs_perag_put(struct xfs_perag *pag)
 	trace_xfs_perag_put(pag->pag_mount, pag->pag_agno, ref, _RET_IP_);
 }
 
+STATIC void
+__xfs_free_perag(
+	struct rcu_head	*head)
+{
+	struct xfs_perag *pag = container_of(head, struct xfs_perag, rcu_head);
+
+	ASSERT(atomic_read(&pag->pag_ref) == 0);
+	kmem_free(pag);
+}
+
 /*
- * Free up the resources associated with a mount structure.  Assume that
- * the structure was initially zeroed, so we can tell which fields got
- * initialized.
+ * Free up the per-ag resources associated with the mount structure.
  */
 STATIC void
 xfs_free_perag(
@@ -247,10 +273,9 @@ xfs_free_perag(
 	for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) {
 		spin_lock(&mp->m_perag_lock);
 		pag = radix_tree_delete(&mp->m_perag_tree, agno);
-		ASSERT(pag);
-		ASSERT(atomic_read(&pag->pag_ref) == 0);
 		spin_unlock(&mp->m_perag_lock);
-		kmem_free(pag);
+		ASSERT(pag);
+		call_rcu(&pag->rcu_head, __xfs_free_perag);
 	}
 }
 
@@ -447,7 +472,10 @@ xfs_initialize_perag(
 		pag->pag_agno = index;
 		pag->pag_mount = mp;
 		rwlock_init(&pag->pag_ici_lock);
+		mutex_init(&pag->pag_ici_reclaim_lock);
 		INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC);
+		spin_lock_init(&pag->pag_buf_lock);
+		pag->pag_buf_tree = RB_ROOT;
 
 		if (radix_tree_preload(GFP_NOFS))
 			goto out_unwind;
@@ -642,7 +670,6 @@ int
 xfs_readsb(xfs_mount_t *mp, int flags)
 {
 	unsigned int	sector_size;
-	unsigned int	extra_flags;
 	xfs_buf_t	*bp;
 	int		error;
 
@@ -655,28 +682,24 @@ xfs_readsb(xfs_mount_t *mp, int flags)
 	 * access to the superblock.
 	 */
 	sector_size = xfs_getsize_buftarg(mp->m_ddev_targp);
-	extra_flags = XBF_LOCK | XBF_FS_MANAGED | XBF_MAPPED;
 
-	bp = xfs_buf_read(mp->m_ddev_targp, XFS_SB_DADDR, BTOBB(sector_size),
-			  extra_flags);
-	if (!bp || XFS_BUF_ISERROR(bp)) {
-		xfs_fs_mount_cmn_err(flags, "SB read failed");
-		error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
-		goto fail;
+reread:
+	bp = xfs_buf_read_uncached(mp, mp->m_ddev_targp,
+					XFS_SB_DADDR, sector_size, 0);
+	if (!bp) {
+		xfs_fs_mount_cmn_err(flags, "SB buffer read failed");
+		return EIO;
 	}
-	ASSERT(XFS_BUF_ISBUSY(bp));
-	ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
 
 	/*
 	 * Initialize the mount structure from the superblock.
 	 * But first do some basic consistency checking.
 	 */
 	xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
-
 	error = xfs_mount_validate_sb(mp, &(mp->m_sb), flags);
 	if (error) {
 		xfs_fs_mount_cmn_err(flags, "SB validate failed");
-		goto fail;
+		goto release_buf;
 	}
 
 	/*
@@ -687,7 +710,7 @@ xfs_readsb(xfs_mount_t *mp, int flags)
 			"device supports only %u byte sectors (not %u)",
 			sector_size, mp->m_sb.sb_sectsize);
 		error = ENOSYS;
-		goto fail;
+		goto release_buf;
 	}
 
 	/*
@@ -695,33 +718,20 @@ xfs_readsb(xfs_mount_t *mp, int flags)
 	 * re-read the superblock so the buffer is correctly sized.
 	 */
 	if (sector_size < mp->m_sb.sb_sectsize) {
-		XFS_BUF_UNMANAGE(bp);
 		xfs_buf_relse(bp);
 		sector_size = mp->m_sb.sb_sectsize;
-		bp = xfs_buf_read(mp->m_ddev_targp, XFS_SB_DADDR,
-				  BTOBB(sector_size), extra_flags);
-		if (!bp || XFS_BUF_ISERROR(bp)) {
-			xfs_fs_mount_cmn_err(flags, "SB re-read failed");
-			error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
-			goto fail;
-		}
-		ASSERT(XFS_BUF_ISBUSY(bp));
-		ASSERT(XFS_BUF_VALUSEMA(bp) <= 0);
+		goto reread;
 	}
 
 	/* Initialize per-cpu counters */
 	xfs_icsb_reinit_counters(mp);
 
 	mp->m_sb_bp = bp;
-	xfs_buf_relse(bp);
-	ASSERT(XFS_BUF_VALUSEMA(bp) > 0);
+	xfs_buf_unlock(bp);
 	return 0;
 
- fail:
-	if (bp) {
-		XFS_BUF_UNMANAGE(bp);
-		xfs_buf_relse(bp);
-	}
+release_buf:
+	xfs_buf_relse(bp);
 	return error;
 }
 
@@ -994,42 +1004,35 @@ xfs_check_sizes(xfs_mount_t *mp)
 {
 	xfs_buf_t	*bp;
 	xfs_daddr_t	d;
-	int		error;
 
 	d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks);
 	if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) {
-		cmn_err(CE_WARN, "XFS: size check 1 failed");
+		cmn_err(CE_WARN, "XFS: filesystem size mismatch detected");
 		return XFS_ERROR(EFBIG);
 	}
-	error = xfs_read_buf(mp, mp->m_ddev_targp,
-			     d - XFS_FSS_TO_BB(mp, 1),
-			     XFS_FSS_TO_BB(mp, 1), 0, &bp);
-	if (!error) {
-		xfs_buf_relse(bp);
-	} else {
-		cmn_err(CE_WARN, "XFS: size check 2 failed");
-		if (error == ENOSPC)
-			error = XFS_ERROR(EFBIG);
-		return error;
+	bp = xfs_buf_read_uncached(mp, mp->m_ddev_targp,
+					d - XFS_FSS_TO_BB(mp, 1),
+					BBTOB(XFS_FSS_TO_BB(mp, 1)), 0);
+	if (!bp) {
+		cmn_err(CE_WARN, "XFS: last sector read failed");
+		return EIO;
 	}
+	xfs_buf_relse(bp);
 
 	if (mp->m_logdev_targp != mp->m_ddev_targp) {
 		d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
 		if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
-			cmn_err(CE_WARN, "XFS: size check 3 failed");
+			cmn_err(CE_WARN, "XFS: log size mismatch detected");
 			return XFS_ERROR(EFBIG);
 		}
-		error = xfs_read_buf(mp, mp->m_logdev_targp,
-				     d - XFS_FSB_TO_BB(mp, 1),
-				     XFS_FSB_TO_BB(mp, 1), 0, &bp);
-		if (!error) {
-			xfs_buf_relse(bp);
-		} else {
-			cmn_err(CE_WARN, "XFS: size check 3 failed");
-			if (error == ENOSPC)
-				error = XFS_ERROR(EFBIG);
-			return error;
+		bp = xfs_buf_read_uncached(mp, mp->m_logdev_targp,
+					d - XFS_FSB_TO_BB(mp, 1),
+					XFS_FSB_TO_B(mp, 1), 0);
+		if (!bp) {
+			cmn_err(CE_WARN, "XFS: log device read failed");
+			return EIO;
 		}
+		xfs_buf_relse(bp);
 	}
 	return 0;
 }
@@ -1604,7 +1607,7 @@ xfs_unmountfs_writesb(xfs_mount_t *mp)
 		XFS_BUF_UNASYNC(sbp);
 		ASSERT(XFS_BUF_TARGET(sbp) == mp->m_ddev_targp);
 		xfsbdstrat(mp, sbp);
-		error = xfs_iowait(sbp);
+		error = xfs_buf_iowait(sbp);
 		if (error)
 			xfs_ioerror_alert("xfs_unmountfs_writesb",
 					  mp, sbp, XFS_BUF_ADDR(sbp));
@@ -1835,135 +1838,72 @@ xfs_mod_incore_sb_unlocked(
  */
 int
 xfs_mod_incore_sb(
-	xfs_mount_t	*mp,
-	xfs_sb_field_t	field,
-	int64_t		delta,
-	int		rsvd)
+	struct xfs_mount	*mp,
+	xfs_sb_field_t		field,
+	int64_t			delta,
+	int			rsvd)
 {
-	int	status;
+	int			status;
 
-	/* check for per-cpu counters */
-	switch (field) {
 #ifdef HAVE_PERCPU_SB
-	case XFS_SBS_ICOUNT:
-	case XFS_SBS_IFREE:
-	case XFS_SBS_FDBLOCKS:
-		if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
-			status = xfs_icsb_modify_counters(mp, field,
-							delta, rsvd);
-			break;
-		}
-		/* FALLTHROUGH */
+	ASSERT(field < XFS_SBS_ICOUNT || field > XFS_SBS_FDBLOCKS);
 #endif
-	default:
-		spin_lock(&mp->m_sb_lock);
-		status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
-		spin_unlock(&mp->m_sb_lock);
-		break;
-	}
+	spin_lock(&mp->m_sb_lock);
+	status = xfs_mod_incore_sb_unlocked(mp, field, delta, rsvd);
+	spin_unlock(&mp->m_sb_lock);
 
 	return status;
 }
 
 /*
- * xfs_mod_incore_sb_batch() is used to change more than one field
- * in the in-core superblock structure at a time.  This modification
- * is protected by a lock internal to this module.  The fields and
- * changes to those fields are specified in the array of xfs_mod_sb
- * structures passed in.
+ * Change more than one field in the in-core superblock structure at a time.
  *
- * Either all of the specified deltas will be applied or none of
- * them will.  If any modified field dips below 0, then all modifications
- * will be backed out and EINVAL will be returned.
+ * The fields and changes to those fields are specified in the array of
+ * xfs_mod_sb structures passed in.  Either all of the specified deltas
+ * will be applied or none of them will.  If any modified field dips below 0,
+ * then all modifications will be backed out and EINVAL will be returned.
+ *
+ * Note that this function may not be used for the superblock values that
+ * are tracked with the in-memory per-cpu counters - a direct call to
+ * xfs_icsb_modify_counters is required for these.
  */
 int
-xfs_mod_incore_sb_batch(xfs_mount_t *mp, xfs_mod_sb_t *msb, uint nmsb, int rsvd)
+xfs_mod_incore_sb_batch(
+	struct xfs_mount	*mp,
+	xfs_mod_sb_t		*msb,
+	uint			nmsb,
+	int			rsvd)
 {
-	int		status=0;
-	xfs_mod_sb_t	*msbp;
+	xfs_mod_sb_t		*msbp = &msb[0];
+	int			error = 0;
 
 	/*
-	 * Loop through the array of mod structures and apply each
-	 * individually.  If any fail, then back out all those
-	 * which have already been applied.  Do all of this within
-	 * the scope of the m_sb_lock so that all of the changes will
-	 * be atomic.
+	 * Loop through the array of mod structures and apply each individually.
+	 * If any fail, then back out all those which have already been applied.
+	 * Do all of this within the scope of the m_sb_lock so that all of the
+	 * changes will be atomic.
 	 */
 	spin_lock(&mp->m_sb_lock);
-	msbp = &msb[0];
 	for (msbp = &msbp[0]; msbp < (msb + nmsb); msbp++) {
-		/*
-		 * Apply the delta at index n.  If it fails, break
-		 * from the loop so we'll fall into the undo loop
-		 * below.
-		 */
-		switch (msbp->msb_field) {
-#ifdef HAVE_PERCPU_SB
-		case XFS_SBS_ICOUNT:
-		case XFS_SBS_IFREE:
-		case XFS_SBS_FDBLOCKS:
-			if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
-				spin_unlock(&mp->m_sb_lock);
-				status = xfs_icsb_modify_counters(mp,
-							msbp->msb_field,
-							msbp->msb_delta, rsvd);
-				spin_lock(&mp->m_sb_lock);
-				break;
-			}
-			/* FALLTHROUGH */
-#endif
-		default:
-			status = xfs_mod_incore_sb_unlocked(mp,
-						msbp->msb_field,
-						msbp->msb_delta, rsvd);
-			break;
-		}
+		ASSERT(msbp->msb_field < XFS_SBS_ICOUNT ||
+		       msbp->msb_field > XFS_SBS_FDBLOCKS);
 
-		if (status != 0) {
-			break;
-		}
+		error = xfs_mod_incore_sb_unlocked(mp, msbp->msb_field,
+						   msbp->msb_delta, rsvd);
+		if (error)
+			goto unwind;
 	}
+	spin_unlock(&mp->m_sb_lock);
+	return 0;
 
-	/*
-	 * If we didn't complete the loop above, then back out
-	 * any changes made to the superblock.  If you add code
-	 * between the loop above and here, make sure that you
-	 * preserve the value of status. Loop back until
-	 * we step below the beginning of the array.  Make sure
-	 * we don't touch anything back there.
-	 */
-	if (status != 0) {
-		msbp--;
-		while (msbp >= msb) {
-			switch (msbp->msb_field) {
-#ifdef HAVE_PERCPU_SB
-			case XFS_SBS_ICOUNT:
-			case XFS_SBS_IFREE:
-			case XFS_SBS_FDBLOCKS:
-				if (!(mp->m_flags & XFS_MOUNT_NO_PERCPU_SB)) {
-					spin_unlock(&mp->m_sb_lock);
-					status = xfs_icsb_modify_counters(mp,
-							msbp->msb_field,
-							-(msbp->msb_delta),
-							rsvd);
-					spin_lock(&mp->m_sb_lock);
-					break;
-				}
-				/* FALLTHROUGH */
-#endif
-			default:
-				status = xfs_mod_incore_sb_unlocked(mp,
-							msbp->msb_field,
-							-(msbp->msb_delta),
-							rsvd);
-				break;
-			}
-			ASSERT(status == 0);
-			msbp--;
-		}
+unwind:
+	while (--msbp >= msb) {
+		error = xfs_mod_incore_sb_unlocked(mp, msbp->msb_field,
+						   -msbp->msb_delta, rsvd);
+		ASSERT(error == 0);
 	}
 	spin_unlock(&mp->m_sb_lock);
-	return status;
+	return error;
 }
 
 /*
@@ -2001,18 +1941,13 @@ xfs_getsb(
  */
 void
 xfs_freesb(
-	xfs_mount_t	*mp)
+	struct xfs_mount	*mp)
 {
-	xfs_buf_t	*bp;
+	struct xfs_buf		*bp = mp->m_sb_bp;
 
-	/*
-	 * Use xfs_getsb() so that the buffer will be locked
-	 * when we call xfs_buf_relse().
-	 */
-	bp = xfs_getsb(mp, 0);
-	XFS_BUF_UNMANAGE(bp);
-	xfs_buf_relse(bp);
+	xfs_buf_lock(bp);
 	mp->m_sb_bp = NULL;
+	xfs_buf_relse(bp);
 }
 
 /*
@@ -2499,7 +2434,7 @@ xfs_icsb_balance_counter(
 	spin_unlock(&mp->m_sb_lock);
 }
 
-STATIC int
+int
 xfs_icsb_modify_counters(
 	xfs_mount_t	*mp,
 	xfs_sb_field_t	field,
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 5761087ee8ea..5861b4980740 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -53,7 +53,6 @@ typedef struct xfs_trans_reservations {
 
 #include "xfs_sync.h"
 
-struct cred;
 struct log;
 struct xfs_mount_args;
 struct xfs_inode;
@@ -66,65 +65,6 @@ struct xfs_nameops;
 struct xfs_ail;
 struct xfs_quotainfo;
 
-
-/*
- * Prototypes and functions for the Data Migration subsystem.
- */
-
-typedef int	(*xfs_send_data_t)(int, struct xfs_inode *,
-			xfs_off_t, size_t, int, int *);
-typedef int	(*xfs_send_mmap_t)(struct vm_area_struct *, uint);
-typedef int	(*xfs_send_destroy_t)(struct xfs_inode *, dm_right_t);
-typedef int	(*xfs_send_namesp_t)(dm_eventtype_t, struct xfs_mount *,
-			struct xfs_inode *, dm_right_t,
-			struct xfs_inode *, dm_right_t,
-			const unsigned char *, const unsigned char *,
-			mode_t, int, int);
-typedef int	(*xfs_send_mount_t)(struct xfs_mount *, dm_right_t,
-			char *, char *);
-typedef void	(*xfs_send_unmount_t)(struct xfs_mount *, struct xfs_inode *,
-			dm_right_t, mode_t, int, int);
-
-typedef struct xfs_dmops {
-	xfs_send_data_t		xfs_send_data;
-	xfs_send_mmap_t		xfs_send_mmap;
-	xfs_send_destroy_t	xfs_send_destroy;
-	xfs_send_namesp_t	xfs_send_namesp;
-	xfs_send_mount_t	xfs_send_mount;
-	xfs_send_unmount_t	xfs_send_unmount;
-} xfs_dmops_t;
-
-#define XFS_DMAPI_UNMOUNT_FLAGS(mp) \
-	(((mp)->m_dmevmask & (1 << DM_EVENT_UNMOUNT)) ? 0 : DM_FLAGS_UNWANTED)
-
-#define XFS_SEND_DATA(mp, ev,ip,off,len,fl,lock) \
-	(*(mp)->m_dm_ops->xfs_send_data)(ev,ip,off,len,fl,lock)
-#define XFS_SEND_MMAP(mp, vma,fl) \
-	(*(mp)->m_dm_ops->xfs_send_mmap)(vma,fl)
-#define XFS_SEND_DESTROY(mp, ip,right) \
-	(*(mp)->m_dm_ops->xfs_send_destroy)(ip,right)
-#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
-	(*(mp)->m_dm_ops->xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl)
-#define XFS_SEND_MOUNT(mp,right,path,name) \
-	(*(mp)->m_dm_ops->xfs_send_mount)(mp,right,path,name)
-#define XFS_SEND_PREUNMOUNT(mp) \
-do { \
-	if (mp->m_flags & XFS_MOUNT_DMAPI) { \
-		(*(mp)->m_dm_ops->xfs_send_namesp)(DM_EVENT_PREUNMOUNT, mp, \
-			(mp)->m_rootip, DM_RIGHT_NULL, \
-			(mp)->m_rootip, DM_RIGHT_NULL, \
-			NULL, NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \
-	} \
-} while (0)
-#define XFS_SEND_UNMOUNT(mp) \
-do { \
-	if (mp->m_flags & XFS_MOUNT_DMAPI) { \
-		(*(mp)->m_dm_ops->xfs_send_unmount)(mp, (mp)->m_rootip, \
-			DM_RIGHT_NULL, 0, 0, XFS_DMAPI_UNMOUNT_FLAGS(mp)); \
-	} \
-} while (0)
-
-
 #ifdef HAVE_PERCPU_SB
 
 /*
@@ -150,6 +90,8 @@ extern void	xfs_icsb_reinit_counters(struct xfs_mount *);
 extern void	xfs_icsb_destroy_counters(struct xfs_mount *);
 extern void	xfs_icsb_sync_counters(struct xfs_mount *, int);
 extern void	xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
+extern int	xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t,
+						int64_t, int);
 
 #else
 #define xfs_icsb_init_counters(mp)		(0)
@@ -157,6 +99,8 @@ extern void	xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
 #define xfs_icsb_reinit_counters(mp)		do { } while (0)
 #define xfs_icsb_sync_counters(mp, flags)	do { } while (0)
 #define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
+#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \
+	xfs_mod_incore_sb(mp, field, delta, rsvd)
 #endif
 
 typedef struct xfs_mount {
@@ -241,8 +185,6 @@ typedef struct xfs_mount {
 	uint			m_chsize;	/* size of next field */
 	struct xfs_chash	*m_chash;	/* fs private inode per-cluster
 						 * hash table */
-	struct xfs_dmops	*m_dm_ops;	/* vector of DMI ops */
-	struct xfs_qmops	*m_qm_ops;	/* vector of XQM ops */
 	atomic_t		m_active_trans;	/* number trans frozen */
 #ifdef HAVE_PERCPU_SB
 	xfs_icsb_cnts_t __percpu *m_sb_cnts;	/* per-cpu superblock counters */
@@ -269,7 +211,6 @@ typedef struct xfs_mount {
 						   must be synchronous except
 						   for space allocations */
 #define XFS_MOUNT_DELAYLOG	(1ULL << 1)	/* delayed logging is enabled */
-#define XFS_MOUNT_DMAPI		(1ULL << 2)	/* dmapi is enabled */
 #define XFS_MOUNT_WAS_CLEAN	(1ULL << 3)
 #define XFS_MOUNT_FS_SHUTDOWN	(1ULL << 4)	/* atomic stop of all filesystem
 						   operations, typically for
@@ -282,8 +223,6 @@ typedef struct xfs_mount {
 #define XFS_MOUNT_GRPID		(1ULL << 9)	/* group-ID assigned from directory */
 #define XFS_MOUNT_NORECOVERY	(1ULL << 10)	/* no recovery - dirty fs */
 #define XFS_MOUNT_DFLT_IOSIZE	(1ULL << 12)	/* set default i/o size */
-#define XFS_MOUNT_OSYNCISOSYNC	(1ULL << 13)	/* o_sync is REALLY o_sync */
-						/* osyncisdsync is now default*/
 #define XFS_MOUNT_32BITINODES	(1ULL << 14)	/* do not create inodes above
 						 * 32 bits in size */
 #define XFS_MOUNT_SMALL_INUMS	(1ULL << 15)	/* users wants 32bit inodes */
@@ -296,8 +235,6 @@ typedef struct xfs_mount {
 #define XFS_MOUNT_DIRSYNC	(1ULL << 21)	/* synchronous directory ops */
 #define XFS_MOUNT_COMPAT_IOSIZE	(1ULL << 22)	/* don't report large preferred
 						 * I/O size in stat() */
-#define XFS_MOUNT_NO_PERCPU_SB	(1ULL << 23)	/* don't use per-cpu superblock
-						   counters */
 #define XFS_MOUNT_FILESTREAMS	(1ULL << 24)	/* enable the filestreams
 						   allocator */
 #define XFS_MOUNT_NOATTR2	(1ULL << 25)	/* disable use of attr2 format */
@@ -391,6 +328,8 @@ xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
  * perag get/put wrappers for ref counting
  */
 struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno);
+struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *mp, xfs_agnumber_t agno,
+					int tag);
 void	xfs_perag_put(struct xfs_perag *pag);
 
 /*
@@ -440,11 +379,6 @@ extern int	xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t);
 
 extern int	xfs_dev_is_read_only(struct xfs_mount *, char *);
 
-extern int	xfs_dmops_get(struct xfs_mount *);
-extern void	xfs_dmops_put(struct xfs_mount *);
-
-extern struct xfs_dmops xfs_dmcore_xfs;
-
 #endif	/* __KERNEL__ */
 
 extern void	xfs_mod_sb(struct xfs_trans *, __int64_t);
diff --git a/fs/xfs/xfs_refcache.h b/fs/xfs/xfs_refcache.h
deleted file mode 100644
index 2dec79edb510..000000000000
--- a/fs/xfs/xfs_refcache.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_REFCACHE_H__
-#define __XFS_REFCACHE_H__
-
-#ifdef HAVE_REFCACHE
-/*
- * Maximum size (in inodes) for the NFS reference cache
- */
-#define XFS_REFCACHE_SIZE_MAX	512
-
-struct xfs_inode;
-struct xfs_mount;
-
-extern void xfs_refcache_insert(struct xfs_inode *);
-extern void xfs_refcache_purge_ip(struct xfs_inode *);
-extern void xfs_refcache_purge_mp(struct xfs_mount *);
-extern void xfs_refcache_purge_some(struct xfs_mount *);
-extern void xfs_refcache_resize(int);
-extern void xfs_refcache_destroy(void);
-
-extern void xfs_refcache_iunlock(struct xfs_inode *, uint);
-
-#else
-
-#define xfs_refcache_insert(ip)		do { } while (0)
-#define xfs_refcache_purge_ip(ip)	do { } while (0)
-#define xfs_refcache_purge_mp(mp)	do { } while (0)
-#define xfs_refcache_purge_some(mp)	do { } while (0)
-#define xfs_refcache_resize(size)	do { } while (0)
-#define xfs_refcache_destroy()		do { } while (0)
-
-#define xfs_refcache_iunlock(ip, flags)	xfs_iunlock(ip, flags)
-
-#endif
-
-#endif	/* __XFS_REFCACHE_H__ */
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index fc1cda23b817..d2af0a8381a6 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -24,12 +24,9 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
@@ -116,20 +113,7 @@ xfs_rename(
 	int		spaceres;
 	int		num_inodes;
 
-	xfs_itrace_entry(src_dp);
-	xfs_itrace_entry(target_dp);
-
-	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_RENAME) ||
-	    DM_EVENT_ENABLED(target_dp, DM_EVENT_RENAME)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_RENAME,
-					src_dp, DM_RIGHT_NULL,
-					target_dp, DM_RIGHT_NULL,
-					src_name->name, target_name->name,
-					0, 0, 0);
-		if (error)
-			return error;
-	}
-	/* Return through std_return after this point. */
+	trace_xfs_rename(src_dp, target_dp, src_name, target_name);
 
 	new_parent = (src_dp != target_dp);
 	src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
@@ -184,26 +168,14 @@ xfs_rename(
 	/*
 	 * Join all the inodes to the transaction. From this point on,
 	 * we can rely on either trans_commit or trans_cancel to unlock
-	 * them.  Note that we need to add a vnode reference to the
-	 * directories since trans_commit & trans_cancel will decrement
-	 * them when they unlock the inodes.  Also, we need to be careful
-	 * not to add an inode to the transaction more than once.
+	 * them.
 	 */
-	IHOLD(src_dp);
-	xfs_trans_ijoin(tp, src_dp, XFS_ILOCK_EXCL);
-
-	if (new_parent) {
-		IHOLD(target_dp);
-		xfs_trans_ijoin(tp, target_dp, XFS_ILOCK_EXCL);
-	}
-
-	IHOLD(src_ip);
-	xfs_trans_ijoin(tp, src_ip, XFS_ILOCK_EXCL);
-
-	if (target_ip) {
-		IHOLD(target_ip);
-		xfs_trans_ijoin(tp, target_ip, XFS_ILOCK_EXCL);
-	}
+	xfs_trans_ijoin_ref(tp, src_dp, XFS_ILOCK_EXCL);
+	if (new_parent)
+		xfs_trans_ijoin_ref(tp, target_dp, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, src_ip, XFS_ILOCK_EXCL);
+	if (target_ip)
+		xfs_trans_ijoin_ref(tp, target_ip, XFS_ILOCK_EXCL);
 
 	/*
 	 * If we are using project inheritance, we only allow renames
@@ -211,7 +183,7 @@ xfs_rename(
 	 * tree quota mechanism would be circumvented.
 	 */
 	if (unlikely((target_dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
-		     (target_dp->i_d.di_projid != src_ip->i_d.di_projid))) {
+		     (xfs_get_projid(target_dp) != xfs_get_projid(src_ip)))) {
 		error = XFS_ERROR(EXDEV);
 		goto error_return;
 	}
@@ -239,7 +211,9 @@ xfs_rename(
 			goto error_return;
 		if (error)
 			goto abort_return;
-		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+		xfs_trans_ichgtime(tp, target_dp,
+					XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 
 		if (new_parent && src_is_directory) {
 			error = xfs_bumplink(tp, target_dp);
@@ -277,7 +251,9 @@ xfs_rename(
 					&first_block, &free_list, spaceres);
 		if (error)
 			goto abort_return;
-		xfs_ichgtime(target_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+
+		xfs_trans_ichgtime(tp, target_dp,
+					XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 
 		/*
 		 * Decrement the link count on the target since the target
@@ -320,7 +296,7 @@ xfs_rename(
 	 * inode isn't really being changed, but old unix file systems did
 	 * it and some incremental backup programs won't work without it.
 	 */
-	xfs_ichgtime(src_ip, XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, src_ip, XFS_ICHGTIME_CHG);
 
 	/*
 	 * Adjust the link count on src_dp.  This is necessary when
@@ -343,7 +319,7 @@ xfs_rename(
 	if (error)
 		goto abort_return;
 
-	xfs_ichgtime(src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, src_dp, XFS_ILOG_CORE);
 	if (new_parent)
 		xfs_trans_log_inode(tp, target_dp, XFS_ILOG_CORE);
@@ -369,26 +345,13 @@ xfs_rename(
 	 * trans_commit will unlock src_ip, target_ip & decrement
 	 * the vnode references.
 	 */
-	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-
-	/* Fall through to std_return with error = 0 or errno from
-	 * xfs_trans_commit	 */
-std_return:
-	if (DM_EVENT_ENABLED(src_dp, DM_EVENT_POSTRENAME) ||
-	    DM_EVENT_ENABLED(target_dp, DM_EVENT_POSTRENAME)) {
-		(void) XFS_SEND_NAMESP (mp, DM_EVENT_POSTRENAME,
-					src_dp, DM_RIGHT_NULL,
-					target_dp, DM_RIGHT_NULL,
-					src_name->name, target_name->name,
-					0, error, 0);
-	}
-	return error;
+	return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
 
  abort_return:
 	cancel_flags |= XFS_TRANS_ABORT;
-	/* FALLTHROUGH */
  error_return:
 	xfs_bmap_cancel(&free_list);
 	xfs_trans_cancel(tp, cancel_flags);
-	goto std_return;
+ std_return:
+	return error;
 }
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index a2d32ce335aa..12a191385310 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -25,17 +25,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
@@ -46,6 +39,7 @@
 #include "xfs_trans_space.h"
 #include "xfs_utils.h"
 #include "xfs_trace.h"
+#include "xfs_buf.h"
 
 
 /*
@@ -129,7 +123,7 @@ xfs_growfs_rt_alloc(
 		cancelflags |= XFS_TRANS_ABORT;
 		error = xfs_bmapi(tp, ip, oblocks, nblocks - oblocks,
 			XFS_BMAPI_WRITE | XFS_BMAPI_METADATA, &firstblock,
-			resblks, &map, &nmap, &flist, NULL);
+			resblks, &map, &nmap, &flist);
 		if (!error && nmap < 1)
 			error = XFS_ERROR(ENOSPC);
 		if (error)
@@ -1890,13 +1884,13 @@ xfs_growfs_rt(
 	/*
 	 * Read in the last block of the device, make sure it exists.
 	 */
-	error = xfs_read_buf(mp, mp->m_rtdev_targp,
-			XFS_FSB_TO_BB(mp, nrblocks - 1),
-			XFS_FSB_TO_BB(mp, 1), 0, &bp);
-	if (error)
-		return error;
-	ASSERT(bp);
+	bp = xfs_buf_read_uncached(mp, mp->m_rtdev_targp,
+				XFS_FSB_TO_BB(mp, nrblocks - 1),
+				XFS_FSB_TO_B(mp, 1), 0);
+	if (!bp)
+		return EIO;
 	xfs_buf_relse(bp);
+
 	/*
 	 * Calculate new parameters.  These are the final values to be reached.
 	 */
@@ -2222,7 +2216,6 @@ xfs_rtmount_init(
 {
 	xfs_buf_t	*bp;	/* buffer for last block of subvolume */
 	xfs_daddr_t	d;	/* address of last block of subvolume */
-	int		error;	/* error return value */
 	xfs_sb_t	*sbp;	/* filesystem superblock copy in mount */
 
 	sbp = &mp->m_sb;
@@ -2249,15 +2242,12 @@ xfs_rtmount_init(
 			(unsigned long long) mp->m_sb.sb_rblocks);
 		return XFS_ERROR(EFBIG);
 	}
-	error = xfs_read_buf(mp, mp->m_rtdev_targp,
-				d - XFS_FSB_TO_BB(mp, 1),
-				XFS_FSB_TO_BB(mp, 1), 0, &bp);
-	if (error) {
-		cmn_err(CE_WARN,
-	"XFS: realtime mount -- xfs_read_buf failed, returned %d", error);
-		if (error == ENOSPC)
-			return XFS_ERROR(EFBIG);
-		return error;
+	bp = xfs_buf_read_uncached(mp, mp->m_rtdev_targp,
+					d - XFS_FSB_TO_BB(mp, 1),
+					XFS_FSB_TO_B(mp, 1), 0);
+	if (!bp) {
+		cmn_err(CE_WARN, "XFS: realtime device size check failed");
+		return EIO;
 	}
 	xfs_buf_relse(bp);
 	return 0;
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c
index e336742a58a4..56861d5daaef 100644
--- a/fs/xfs/xfs_rw.c
+++ b/fs/xfs/xfs_rw.c
@@ -24,27 +24,12 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_inode_item.h"
-#include "xfs_itable.h"
-#include "xfs_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr.h"
-#include "xfs_bmap.h"
 #include "xfs_error.h"
-#include "xfs_buf_item.h"
 #include "xfs_rw.h"
-#include "xfs_trace.h"
 
 /*
  * Force a shutdown of the filesystem instantly while keeping
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 1b017c657494..1eb2ba586814 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -80,10 +80,12 @@ struct xfs_mount;
 #define XFS_SB_VERSION2_RESERVED4BIT	0x00000004
 #define XFS_SB_VERSION2_ATTR2BIT	0x00000008	/* Inline attr rework */
 #define XFS_SB_VERSION2_PARENTBIT	0x00000010	/* parent pointers */
+#define XFS_SB_VERSION2_PROJID32BIT	0x00000080	/* 32 bit project id */
 
 #define	XFS_SB_VERSION2_OKREALFBITS	\
 	(XFS_SB_VERSION2_LAZYSBCOUNTBIT	| \
-	 XFS_SB_VERSION2_ATTR2BIT)
+	 XFS_SB_VERSION2_ATTR2BIT	| \
+	 XFS_SB_VERSION2_PROJID32BIT)
 #define	XFS_SB_VERSION2_OKSASHFBITS	\
 	(0)
 #define XFS_SB_VERSION2_OKREALBITS	\
@@ -495,6 +497,12 @@ static inline void xfs_sb_version_removeattr2(xfs_sb_t *sbp)
 		sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
 }
 
+static inline int xfs_sb_version_hasprojid32bit(xfs_sb_t *sbp)
+{
+	return xfs_sb_version_hasmorebits(sbp) &&
+		(sbp->sb_features2 & XFS_SB_VERSION2_PROJID32BIT);
+}
+
 /*
  * end of superblock version macros
  */
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 28547dfce037..f6d956b7711e 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (C) 2010 Red Hat, Inc.
  * All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -24,16 +25,12 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
@@ -47,6 +44,7 @@
 #include "xfs_trace.h"
 
 kmem_zone_t	*xfs_trans_zone;
+kmem_zone_t	*xfs_log_item_desc_zone;
 
 
 /*
@@ -597,8 +595,7 @@ _xfs_trans_alloc(
 	tp->t_magic = XFS_TRANS_MAGIC;
 	tp->t_type = type;
 	tp->t_mountp = mp;
-	tp->t_items_free = XFS_LIC_NUM_SLOTS;
-	xfs_lic_init(&(tp->t_items));
+	INIT_LIST_HEAD(&tp->t_items);
 	INIT_LIST_HEAD(&tp->t_busy);
 	return tp;
 }
@@ -643,8 +640,7 @@ xfs_trans_dup(
 	ntp->t_magic = XFS_TRANS_MAGIC;
 	ntp->t_type = tp->t_type;
 	ntp->t_mountp = tp->t_mountp;
-	ntp->t_items_free = XFS_LIC_NUM_SLOTS;
-	xfs_lic_init(&(ntp->t_items));
+	INIT_LIST_HEAD(&ntp->t_items);
 	INIT_LIST_HEAD(&ntp->t_busy);
 
 	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
@@ -700,7 +696,7 @@ xfs_trans_reserve(
 	 * fail if the count would go below zero.
 	 */
 	if (blocks > 0) {
-		error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
+		error = xfs_icsb_modify_counters(tp->t_mountp, XFS_SBS_FDBLOCKS,
 					  -((int64_t)blocks), rsvd);
 		if (error != 0) {
 			current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
@@ -771,7 +767,7 @@ undo_log:
 
 undo_blocks:
 	if (blocks > 0) {
-		(void) xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS,
+		xfs_icsb_modify_counters(tp->t_mountp, XFS_SBS_FDBLOCKS,
 					 (int64_t)blocks, rsvd);
 		tp->t_blk_res = 0;
 	}
@@ -1013,7 +1009,7 @@ void
 xfs_trans_unreserve_and_mod_sb(
 	xfs_trans_t	*tp)
 {
-	xfs_mod_sb_t	msb[14];	/* If you add cases, add entries */
+	xfs_mod_sb_t	msb[9];	/* If you add cases, add entries */
 	xfs_mod_sb_t	*msbp;
 	xfs_mount_t	*mp = tp->t_mountp;
 	/* REFERENCED */
@@ -1021,55 +1017,61 @@ xfs_trans_unreserve_and_mod_sb(
 	int		rsvd;
 	int64_t		blkdelta = 0;
 	int64_t		rtxdelta = 0;
+	int64_t		idelta = 0;
+	int64_t		ifreedelta = 0;
 
 	msbp = msb;
 	rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0;
 
-	/* calculate free blocks delta */
+	/* calculate deltas */
 	if (tp->t_blk_res > 0)
 		blkdelta = tp->t_blk_res;
-
 	if ((tp->t_fdblocks_delta != 0) &&
 	    (xfs_sb_version_haslazysbcount(&mp->m_sb) ||
 	     (tp->t_flags & XFS_TRANS_SB_DIRTY)))
 	        blkdelta += tp->t_fdblocks_delta;
 
-	if (blkdelta != 0) {
-		msbp->msb_field = XFS_SBS_FDBLOCKS;
-		msbp->msb_delta = blkdelta;
-		msbp++;
-	}
-
-	/* calculate free realtime extents delta */
 	if (tp->t_rtx_res > 0)
 		rtxdelta = tp->t_rtx_res;
-
 	if ((tp->t_frextents_delta != 0) &&
 	    (tp->t_flags & XFS_TRANS_SB_DIRTY))
 		rtxdelta += tp->t_frextents_delta;
 
+	if (xfs_sb_version_haslazysbcount(&mp->m_sb) ||
+	     (tp->t_flags & XFS_TRANS_SB_DIRTY)) {
+		idelta = tp->t_icount_delta;
+		ifreedelta = tp->t_ifree_delta;
+	}
+
+	/* apply the per-cpu counters */
+	if (blkdelta) {
+		error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
+						 blkdelta, rsvd);
+		if (error)
+			goto out;
+	}
+
+	if (idelta) {
+		error = xfs_icsb_modify_counters(mp, XFS_SBS_ICOUNT,
+						 idelta, rsvd);
+		if (error)
+			goto out_undo_fdblocks;
+	}
+
+	if (ifreedelta) {
+		error = xfs_icsb_modify_counters(mp, XFS_SBS_IFREE,
+						 ifreedelta, rsvd);
+		if (error)
+			goto out_undo_icount;
+	}
+
+	/* apply remaining deltas */
 	if (rtxdelta != 0) {
 		msbp->msb_field = XFS_SBS_FREXTENTS;
 		msbp->msb_delta = rtxdelta;
 		msbp++;
 	}
 
-	/* apply remaining deltas */
-
-	if (xfs_sb_version_haslazysbcount(&mp->m_sb) ||
-	     (tp->t_flags & XFS_TRANS_SB_DIRTY)) {
-		if (tp->t_icount_delta != 0) {
-			msbp->msb_field = XFS_SBS_ICOUNT;
-			msbp->msb_delta = tp->t_icount_delta;
-			msbp++;
-		}
-		if (tp->t_ifree_delta != 0) {
-			msbp->msb_field = XFS_SBS_IFREE;
-			msbp->msb_delta = tp->t_ifree_delta;
-			msbp++;
-		}
-	}
-
 	if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
 		if (tp->t_dblocks_delta != 0) {
 			msbp->msb_field = XFS_SBS_DBLOCKS;
@@ -1119,7 +1121,125 @@ xfs_trans_unreserve_and_mod_sb(
 	if (msbp > msb) {
 		error = xfs_mod_incore_sb_batch(tp->t_mountp, msb,
 			(uint)(msbp - msb), rsvd);
-		ASSERT(error == 0);
+		if (error)
+			goto out_undo_ifreecount;
+	}
+
+	return;
+
+out_undo_ifreecount:
+	if (ifreedelta)
+		xfs_icsb_modify_counters(mp, XFS_SBS_IFREE, -ifreedelta, rsvd);
+out_undo_icount:
+	if (idelta)
+		xfs_icsb_modify_counters(mp, XFS_SBS_ICOUNT, -idelta, rsvd);
+out_undo_fdblocks:
+	if (blkdelta)
+		xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS, -blkdelta, rsvd);
+out:
+	ASSERT(error = 0);
+	return;
+}
+
+/*
+ * Add the given log item to the transaction's list of log items.
+ *
+ * The log item will now point to its new descriptor with its li_desc field.
+ */
+void
+xfs_trans_add_item(
+	struct xfs_trans	*tp,
+	struct xfs_log_item	*lip)
+{
+	struct xfs_log_item_desc *lidp;
+
+	ASSERT(lip->li_mountp = tp->t_mountp);
+	ASSERT(lip->li_ailp = tp->t_mountp->m_ail);
+
+	lidp = kmem_zone_zalloc(xfs_log_item_desc_zone, KM_SLEEP | KM_NOFS);
+
+	lidp->lid_item = lip;
+	lidp->lid_flags = 0;
+	lidp->lid_size = 0;
+	list_add_tail(&lidp->lid_trans, &tp->t_items);
+
+	lip->li_desc = lidp;
+}
+
+STATIC void
+xfs_trans_free_item_desc(
+	struct xfs_log_item_desc *lidp)
+{
+	list_del_init(&lidp->lid_trans);
+	kmem_zone_free(xfs_log_item_desc_zone, lidp);
+}
+
+/*
+ * Unlink and free the given descriptor.
+ */
+void
+xfs_trans_del_item(
+	struct xfs_log_item	*lip)
+{
+	xfs_trans_free_item_desc(lip->li_desc);
+	lip->li_desc = NULL;
+}
+
+/*
+ * Unlock all of the items of a transaction and free all the descriptors
+ * of that transaction.
+ */
+void
+xfs_trans_free_items(
+	struct xfs_trans	*tp,
+	xfs_lsn_t		commit_lsn,
+	int			flags)
+{
+	struct xfs_log_item_desc *lidp, *next;
+
+	list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
+		struct xfs_log_item	*lip = lidp->lid_item;
+
+		lip->li_desc = NULL;
+
+		if (commit_lsn != NULLCOMMITLSN)
+			IOP_COMMITTING(lip, commit_lsn);
+		if (flags & XFS_TRANS_ABORT)
+			lip->li_flags |= XFS_LI_ABORTED;
+		IOP_UNLOCK(lip);
+
+		xfs_trans_free_item_desc(lidp);
+	}
+}
+
+/*
+ * Unlock the items associated with a transaction.
+ *
+ * Items which were not logged should be freed.  Those which were logged must
+ * still be tracked so they can be unpinned when the transaction commits.
+ */
+STATIC void
+xfs_trans_unlock_items(
+	struct xfs_trans	*tp,
+	xfs_lsn_t		commit_lsn)
+{
+	struct xfs_log_item_desc *lidp, *next;
+
+	list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
+		struct xfs_log_item	*lip = lidp->lid_item;
+
+		lip->li_desc = NULL;
+
+		if (commit_lsn != NULLCOMMITLSN)
+			IOP_COMMITTING(lip, commit_lsn);
+		IOP_UNLOCK(lip);
+
+		/*
+		 * Free the descriptor if the item is not dirty
+		 * within this transaction.
+		 */
+		if (!(lidp->lid_flags & XFS_LID_DIRTY))
+			xfs_trans_free_item_desc(lidp);
 	}
 }
 
@@ -1134,30 +1254,27 @@ xfs_trans_count_vecs(
 	struct xfs_trans	*tp)
 {
 	int			nvecs;
-	xfs_log_item_desc_t	*lidp;
+	struct xfs_log_item_desc *lidp;
 
 	nvecs = 1;
-	lidp = xfs_trans_first_item(tp);
-	ASSERT(lidp != NULL);
 
 	/* In the non-debug case we need to start bailing out if we
 	 * didn't find a log_item here, return zero and let trans_commit
 	 * deal with it.
 	 */
-	if (lidp == NULL)
+	if (list_empty(&tp->t_items)) {
+		ASSERT(0);
 		return 0;
+	}
 
-	while (lidp != NULL) {
+	list_for_each_entry(lidp, &tp->t_items, lid_trans) {
 		/*
 		 * Skip items which aren't dirty in this transaction.
 		 */
-		if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
-			lidp = xfs_trans_next_item(tp, lidp);
+		if (!(lidp->lid_flags & XFS_LID_DIRTY))
 			continue;
-		}
 		lidp->lid_size = IOP_SIZE(lidp->lid_item);
 		nvecs += lidp->lid_size;
-		lidp = xfs_trans_next_item(tp, lidp);
 	}
 
 	return nvecs;
@@ -1177,7 +1294,7 @@ xfs_trans_fill_vecs(
 	struct xfs_trans	*tp,
 	struct xfs_log_iovec	*log_vector)
 {
-	xfs_log_item_desc_t	*lidp;
+	struct xfs_log_item_desc *lidp;
 	struct xfs_log_iovec	*vecp;
 	uint			nitems;
 
@@ -1188,14 +1305,11 @@ xfs_trans_fill_vecs(
 	vecp = log_vector + 1;
 
 	nitems = 0;
-	lidp = xfs_trans_first_item(tp);
-	ASSERT(lidp);
-	while (lidp) {
+	ASSERT(!list_empty(&tp->t_items));
+	list_for_each_entry(lidp, &tp->t_items, lid_trans) {
 		/* Skip items which aren't dirty in this transaction. */
-		if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
-			lidp = xfs_trans_next_item(tp, lidp);
+		if (!(lidp->lid_flags & XFS_LID_DIRTY))
 			continue;
-		}
 
 		/*
 		 * The item may be marked dirty but not log anything.  This can
@@ -1206,7 +1320,6 @@ xfs_trans_fill_vecs(
 		IOP_FORMAT(lidp->lid_item, vecp);
 		vecp += lidp->lid_size;
 		IOP_PIN(lidp->lid_item);
-		lidp = xfs_trans_next_item(tp, lidp);
 	}
 
 	/*
@@ -1284,7 +1397,7 @@ xfs_trans_item_committed(
 	 * log item flags, if anyone else stales the buffer we do not want to
 	 * pay any attention to it.
 	 */
-	IOP_UNPIN(lip);
+	IOP_UNPIN(lip, 0);
 }
 
 /*
@@ -1298,27 +1411,15 @@ xfs_trans_item_committed(
  */
 STATIC void
 xfs_trans_committed(
-	struct xfs_trans	*tp,
+	void			*arg,
 	int			abortflag)
 {
-	xfs_log_item_desc_t	*lidp;
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_chunk_t	*next_licp;
-
-	/* Call the transaction's completion callback if there is one. */
-	if (tp->t_callback != NULL)
-		tp->t_callback(tp, tp->t_callarg);
+	struct xfs_trans	*tp = arg;
+	struct xfs_log_item_desc *lidp, *next;
 
-	for (lidp = xfs_trans_first_item(tp);
-	     lidp != NULL;
-	     lidp = xfs_trans_next_item(tp, lidp)) {
+	list_for_each_entry_safe(lidp, next, &tp->t_items, lid_trans) {
 		xfs_trans_item_committed(lidp->lid_item, tp->t_lsn, abortflag);
-	}
-
-	/* free the item chunks, ignoring the embedded chunk */
-	for (licp = tp->t_items.lic_next; licp != NULL; licp = next_licp) {
-		next_licp = licp->lic_next;
-		kmem_free(licp);
+		xfs_trans_free_item_desc(lidp);
 	}
 
 	xfs_trans_free(tp);
@@ -1333,16 +1434,14 @@ xfs_trans_uncommit(
 	struct xfs_trans	*tp,
 	uint			flags)
 {
-	xfs_log_item_desc_t	*lidp;
+	struct xfs_log_item_desc *lidp;
 
-	for (lidp = xfs_trans_first_item(tp);
-	     lidp != NULL;
-	     lidp = xfs_trans_next_item(tp, lidp)) {
+	list_for_each_entry(lidp, &tp->t_items, lid_trans) {
 		/*
 		 * Unpin all but those that aren't dirty.
 		 */
 		if (lidp->lid_flags & XFS_LID_DIRTY)
-			IOP_UNPIN_REMOVE(lidp->lid_item, tp);
+			IOP_UNPIN(lidp->lid_item, 1);
 	}
 
 	xfs_trans_unreserve_and_mod_sb(tp);
@@ -1445,7 +1544,7 @@ xfs_trans_commit_iclog(
 	 * running in simulation mode (the log is explicitly turned
 	 * off).
 	 */
-	tp->t_logcb.cb_func = (void(*)(void*, int))xfs_trans_committed;
+	tp->t_logcb.cb_func = xfs_trans_committed;
 	tp->t_logcb.cb_arg = tp;
 
 	/*
@@ -1508,33 +1607,28 @@ STATIC struct xfs_log_vec *
 xfs_trans_alloc_log_vecs(
 	xfs_trans_t	*tp)
 {
-	xfs_log_item_desc_t	*lidp;
+	struct xfs_log_item_desc *lidp;
 	struct xfs_log_vec	*lv = NULL;
 	struct xfs_log_vec	*ret_lv = NULL;
 
-	lidp = xfs_trans_first_item(tp);
 
 	/* Bail out if we didn't find a log item.  */
-	if (!lidp) {
+	if (list_empty(&tp->t_items)) {
 		ASSERT(0);
 		return NULL;
 	}
 
-	while (lidp != NULL) {
+	list_for_each_entry(lidp, &tp->t_items, lid_trans) {
 		struct xfs_log_vec *new_lv;
 
 		/* Skip items which aren't dirty in this transaction. */
-		if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
-			lidp = xfs_trans_next_item(tp, lidp);
+		if (!(lidp->lid_flags & XFS_LID_DIRTY))
 			continue;
-		}
 
 		/* Skip items that do not have any vectors for writing */
 		lidp->lid_size = IOP_SIZE(lidp->lid_item);
-		if (!lidp->lid_size) {
-			lidp = xfs_trans_next_item(tp, lidp);
+		if (!lidp->lid_size)
 			continue;
-		}
 
 		new_lv = kmem_zalloc(sizeof(*new_lv) +
 				lidp->lid_size * sizeof(struct xfs_log_iovec),
@@ -1549,7 +1643,6 @@ xfs_trans_alloc_log_vecs(
 		else
 			lv->lv_next = new_lv;
 		lv = new_lv;
-		lidp = xfs_trans_next_item(tp, lidp);
 	}
 
 	return ret_lv;
@@ -1579,9 +1672,6 @@ xfs_trans_commit_cil(
 		return error;
 
 	current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
-
-	/* xfs_trans_free_items() unlocks them first */
-	xfs_trans_free_items(tp, *commit_lsn, 0);
 	xfs_trans_free(tp);
 	return 0;
 }
@@ -1708,12 +1798,6 @@ xfs_trans_cancel(
 	int			flags)
 {
 	int			log_flags;
-#ifdef DEBUG
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_desc_t	*lidp;
-	xfs_log_item_t		*lip;
-	int			i;
-#endif
 	xfs_mount_t		*mp = tp->t_mountp;
 
 	/*
@@ -1732,21 +1816,11 @@ xfs_trans_cancel(
 		xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
 	}
 #ifdef DEBUG
-	if (!(flags & XFS_TRANS_ABORT)) {
-		licp = &(tp->t_items);
-		while (licp != NULL) {
-			lidp = licp->lic_descs;
-			for (i = 0; i < licp->lic_unused; i++, lidp++) {
-				if (xfs_lic_isfree(licp, i)) {
-					continue;
-				}
-
-				lip = lidp->lid_item;
-				if (!XFS_FORCED_SHUTDOWN(mp))
-					ASSERT(!(lip->li_type == XFS_LI_EFD));
-			}
-			licp = licp->lic_next;
-		}
+	if (!(flags & XFS_TRANS_ABORT) && !XFS_FORCED_SHUTDOWN(mp)) {
+		struct xfs_log_item_desc *lidp;
+
+		list_for_each_entry(lidp, &tp->t_items, lid_trans)
+			ASSERT(!(lidp->lid_item->li_type == XFS_LI_EFD));
 	}
 #endif
 	xfs_trans_unreserve_and_mod_sb(tp);
@@ -1834,7 +1908,6 @@ xfs_trans_roll(
 	if (error)
 		return error;
 
-	xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(trans, dp);
+	xfs_trans_ijoin(trans, dp);
 	return 0;
 }
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index e639e8e9a2a9..246286b77a86 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -161,105 +161,14 @@ typedef struct xfs_trans_header {
  * the amount of space needed to log the item it describes
  * once we get to commit processing (see xfs_trans_commit()).
  */
-typedef struct xfs_log_item_desc {
+struct xfs_log_item_desc {
 	struct xfs_log_item	*lid_item;
-	ushort		lid_size;
-	unsigned char	lid_flags;
-	unsigned char	lid_index;
-} xfs_log_item_desc_t;
+	ushort			lid_size;
+	unsigned char		lid_flags;
+	struct list_head	lid_trans;
+};
 
 #define XFS_LID_DIRTY		0x1
-#define XFS_LID_PINNED		0x2
-
-/*
- * This structure is used to maintain a chunk list of log_item_desc
- * structures. The free field is a bitmask indicating which descriptors
- * in this chunk's array are free.  The unused field is the first value
- * not used since this chunk was allocated.
- */
-#define	XFS_LIC_NUM_SLOTS	15
-typedef struct xfs_log_item_chunk {
-	struct xfs_log_item_chunk	*lic_next;
-	ushort				lic_free;
-	ushort				lic_unused;
-	xfs_log_item_desc_t		lic_descs[XFS_LIC_NUM_SLOTS];
-} xfs_log_item_chunk_t;
-
-#define	XFS_LIC_MAX_SLOT	(XFS_LIC_NUM_SLOTS - 1)
-#define	XFS_LIC_FREEMASK	((1 << XFS_LIC_NUM_SLOTS) - 1)
-
-
-/*
- * Initialize the given chunk.  Set the chunk's free descriptor mask
- * to indicate that all descriptors are free.  The caller gets to set
- * lic_unused to the right value (0 matches all free).  The
- * lic_descs.lid_index values are set up as each desc is allocated.
- */
-static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
-{
-	cp->lic_free = XFS_LIC_FREEMASK;
-}
-
-static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
-{
-	cp->lic_descs[slot].lid_index = (unsigned char)(slot);
-}
-
-static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
-{
-	return cp->lic_free & XFS_LIC_FREEMASK;
-}
-
-static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
-{
-	cp->lic_free = XFS_LIC_FREEMASK;
-}
-
-static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
-{
-	return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
-}
-
-static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
-{
-	return (cp->lic_free & (1 << slot));
-}
-
-static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
-{
-	cp->lic_free &= ~(1 << slot);
-}
-
-static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
-{
-	cp->lic_free |= 1 << slot;
-}
-
-static inline xfs_log_item_desc_t *
-xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
-{
-	return &(cp->lic_descs[slot]);
-}
-
-static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
-{
-	return (uint)dp->lid_index;
-}
-
-/*
- * Calculate the address of a chunk given a descriptor pointer:
- * dp - dp->lid_index give the address of the start of the lic_descs array.
- * From this we subtract the offset of the lic_descs field in a chunk.
- * All of this yields the address of the chunk, which is
- * cast to a chunk pointer.
- */
-static inline xfs_log_item_chunk_t *
-xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
-{
-	return (xfs_log_item_chunk_t*) \
-		(((xfs_caddr_t)((dp) - (dp)->lid_index)) - \
-		(xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs));
-}
 
 #define	XFS_TRANS_MAGIC		0x5452414E	/* 'TRAN' */
 /*
@@ -275,8 +184,6 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
 /*
  * Values for call flags parameter.
  */
-#define	XFS_TRANS_NOSLEEP		0x1
-#define	XFS_TRANS_WAIT			0x2
 #define	XFS_TRANS_RELEASE_LOG_RES	0x4
 #define	XFS_TRANS_ABORT			0x8
 
@@ -438,8 +345,7 @@ typedef struct xfs_item_ops {
 	uint (*iop_size)(xfs_log_item_t *);
 	void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
 	void (*iop_pin)(xfs_log_item_t *);
-	void (*iop_unpin)(xfs_log_item_t *);
-	void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *);
+	void (*iop_unpin)(xfs_log_item_t *, int remove);
 	uint (*iop_trylock)(xfs_log_item_t *);
 	void (*iop_unlock)(xfs_log_item_t *);
 	xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
@@ -451,8 +357,7 @@ typedef struct xfs_item_ops {
 #define IOP_SIZE(ip)		(*(ip)->li_ops->iop_size)(ip)
 #define IOP_FORMAT(ip,vp)	(*(ip)->li_ops->iop_format)(ip, vp)
 #define IOP_PIN(ip)		(*(ip)->li_ops->iop_pin)(ip)
-#define IOP_UNPIN(ip)		(*(ip)->li_ops->iop_unpin)(ip)
-#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp)
+#define IOP_UNPIN(ip, remove)	(*(ip)->li_ops->iop_unpin)(ip, remove)
 #define IOP_TRYLOCK(ip)		(*(ip)->li_ops->iop_trylock)(ip)
 #define IOP_UNLOCK(ip)		(*(ip)->li_ops->iop_unlock)(ip)
 #define IOP_COMMITTED(ip, lsn)	(*(ip)->li_ops->iop_committed)(ip, lsn)
@@ -494,8 +399,6 @@ typedef struct xfs_trans {
 						 * transaction. */
 	struct xfs_mount	*t_mountp;	/* ptr to fs mount struct */
 	struct xfs_dquot_acct   *t_dqinfo;	/* acctg info for dquots */
-	xfs_trans_callback_t	t_callback;	/* transaction callback */
-	void			*t_callarg;	/* callback arg */
 	unsigned int		t_flags;	/* misc flags */
 	int64_t			t_icount_delta;	/* superblock icount change */
 	int64_t			t_ifree_delta;	/* superblock ifree change */
@@ -516,8 +419,7 @@ typedef struct xfs_trans {
 	int64_t			t_rblocks_delta;/* superblock rblocks change */
 	int64_t			t_rextents_delta;/* superblocks rextents chg */
 	int64_t			t_rextslog_delta;/* superblocks rextslog chg */
-	unsigned int		t_items_free;	/* log item descs free */
-	xfs_log_item_chunk_t	t_items;	/* first log item desc chunk */
+	struct list_head	t_items;	/* log item descriptors */
 	xfs_trans_header_t	t_header;	/* header for in-log trans */
 	struct list_head	t_busy;		/* list of busy extents */
 	unsigned long		t_pflags;	/* saved process flags state */
@@ -569,8 +471,9 @@ void		xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
 void		xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
 int		xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
 			       xfs_ino_t , uint, uint, struct xfs_inode **);
-void		xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
-void		xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
+void		xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
+void		xfs_trans_ijoin_ref(struct xfs_trans *, struct xfs_inode *, uint);
+void		xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *);
 void		xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
 void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
 struct xfs_efi_log_item	*xfs_trans_get_efi(xfs_trans_t *, uint);
@@ -595,6 +498,7 @@ int		xfs_trans_ail_init(struct xfs_mount *);
 void		xfs_trans_ail_destroy(struct xfs_mount *);
 
 extern kmem_zone_t	*xfs_trans_zone;
+extern kmem_zone_t	*xfs_log_item_desc_zone;
 
 #endif	/* __KERNEL__ */
 
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index e799824f7245..dc9069568ff7 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -24,7 +24,6 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 63d81a22f4fd..c47918c302a5 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -24,14 +24,10 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_buf_item.h"
@@ -51,36 +47,17 @@ xfs_trans_buf_item_match(
 	xfs_daddr_t		blkno,
 	int			len)
 {
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_desc_t	*lidp;
-	xfs_buf_log_item_t	*blip;
-	int			i;
+	struct xfs_log_item_desc *lidp;
+	struct xfs_buf_log_item	*blip;
 
 	len = BBTOB(len);
-	for (licp = &tp->t_items; licp != NULL; licp = licp->lic_next) {
-		if (xfs_lic_are_all_free(licp)) {
-			ASSERT(licp == &tp->t_items);
-			ASSERT(licp->lic_next == NULL);
-			return NULL;
-		}
-
-		for (i = 0; i < licp->lic_unused; i++) {
-			/*
-			 * Skip unoccupied slots.
-			 */
-			if (xfs_lic_isfree(licp, i))
-				continue;
-
-			lidp = xfs_lic_slot(licp, i);
-			blip = (xfs_buf_log_item_t *)lidp->lid_item;
-			if (blip->bli_item.li_type != XFS_LI_BUF)
-				continue;
-
-			if (XFS_BUF_TARGET(blip->bli_buf) == target &&
-			    XFS_BUF_ADDR(blip->bli_buf) == blkno &&
-			    XFS_BUF_COUNT(blip->bli_buf) == len)
-				return blip->bli_buf;
-		}
+	list_for_each_entry(lidp, &tp->t_items, lid_trans) {
+		blip = (struct xfs_buf_log_item *)lidp->lid_item;
+		if (blip->bli_item.li_type == XFS_LI_BUF &&
+		    XFS_BUF_TARGET(blip->bli_buf) == target &&
+		    XFS_BUF_ADDR(blip->bli_buf) == blkno &&
+		    XFS_BUF_COUNT(blip->bli_buf) == len)
+			return blip->bli_buf;
 	}
 
 	return NULL;
@@ -127,7 +104,7 @@ _xfs_trans_bjoin(
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t *)bip);
+	xfs_trans_add_item(tp, &bip->bli_item);
 
 	/*
 	 * Initialize b_fsprivate2 so we can find it with incore_match()
@@ -359,7 +336,7 @@ xfs_trans_read_buf(
 			ASSERT(!XFS_BUF_ISASYNC(bp));
 			XFS_BUF_READ(bp);
 			xfsbdstrat(tp->t_mountp, bp);
-			error = xfs_iowait(bp);
+			error = xfs_buf_iowait(bp);
 			if (error) {
 				xfs_ioerror_alert("xfs_trans_read_buf", mp,
 						  bp, blkno);
@@ -483,7 +460,6 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 {
 	xfs_buf_log_item_t	*bip;
 	xfs_log_item_t		*lip;
-	xfs_log_item_desc_t	*lidp;
 
 	/*
 	 * Default to a normal brelse() call if the tp is NULL.
@@ -514,13 +490,6 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 	ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 
-	/*
-	 * Find the item descriptor pointing to this buffer's
-	 * log item.  It must be there.
-	 */
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
-	ASSERT(lidp != NULL);
-
 	trace_xfs_trans_brelse(bip);
 
 	/*
@@ -536,7 +505,7 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 	 * If the buffer is dirty within this transaction, we can't
 	 * release it until we commit.
 	 */
-	if (lidp->lid_flags & XFS_LID_DIRTY)
+	if (bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY)
 		return;
 
 	/*
@@ -553,7 +522,7 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 	/*
 	 * Free up the log item descriptor tracking the released item.
 	 */
-	xfs_trans_free_item(tp, lidp);
+	xfs_trans_del_item(&bip->bli_item);
 
 	/*
 	 * Clear the hold flag in the buf log item if it is set.
@@ -665,7 +634,6 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 		  uint		last)
 {
 	xfs_buf_log_item_t	*bip;
-	xfs_log_item_desc_t	*lidp;
 
 	ASSERT(XFS_BUF_ISBUSY(bp));
 	ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
@@ -690,7 +658,7 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 	XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
-	bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))xfs_buf_iodone;
+	bip->bli_item.li_cb = xfs_buf_iodone;
 
 	trace_xfs_trans_log_buf(bip);
 
@@ -707,11 +675,8 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 		bip->bli_format.blf_flags &= ~XFS_BLF_CANCEL;
 	}
 
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 	bip->bli_flags |= XFS_BLI_LOGGED;
 	xfs_buf_item_log(bip, first, last);
 }
@@ -740,7 +705,6 @@ xfs_trans_binval(
 	xfs_trans_t	*tp,
 	xfs_buf_t	*bp)
 {
-	xfs_log_item_desc_t	*lidp;
 	xfs_buf_log_item_t	*bip;
 
 	ASSERT(XFS_BUF_ISBUSY(bp));
@@ -748,8 +712,6 @@ xfs_trans_binval(
 	ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
 
 	bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)bip);
-	ASSERT(lidp != NULL);
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 
 	trace_xfs_trans_binval(bip);
@@ -764,7 +726,7 @@ xfs_trans_binval(
 		ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY)));
 		ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_INODE_BUF));
 		ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL);
-		ASSERT(lidp->lid_flags & XFS_LID_DIRTY);
+		ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY);
 		ASSERT(tp->t_flags & XFS_TRANS_DIRTY);
 		return;
 	}
@@ -797,7 +759,7 @@ xfs_trans_binval(
 	bip->bli_format.blf_flags |= XFS_BLF_CANCEL;
 	memset((char *)(bip->bli_format.blf_data_map), 0,
 	      (bip->bli_format.blf_map_size * sizeof(uint)));
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 	tp->t_flags |= XFS_TRANS_DIRTY;
 }
 
@@ -853,12 +815,9 @@ xfs_trans_stale_inode_buf(
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 
 	bip->bli_flags |= XFS_BLI_STALE_INODE;
-	bip->bli_item.li_cb = (void(*)(xfs_buf_t*,xfs_log_item_t*))
-		xfs_buf_iodone;
+	bip->bli_item.li_cb = xfs_buf_iodone;
 }
 
-
-
 /*
  * Mark the buffer as being one which contains newly allocated
  * inodes.  We need to make sure that even if this buffer is
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c
index 27cce2a9c7e9..f783d5e9fa70 100644
--- a/fs/xfs/xfs_trans_extfree.c
+++ b/fs/xfs/xfs_trans_extfree.c
@@ -23,7 +23,6 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_trans_priv.h"
 #include "xfs_extfree_item.h"
@@ -49,9 +48,8 @@ xfs_trans_get_efi(xfs_trans_t	*tp,
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)efip);
-
-	return (efip);
+	xfs_trans_add_item(tp, &efip->efi_item);
+	return efip;
 }
 
 /*
@@ -65,15 +63,11 @@ xfs_trans_log_efi_extent(xfs_trans_t		*tp,
 			 xfs_fsblock_t		start_block,
 			 xfs_extlen_t		ext_len)
 {
-	xfs_log_item_desc_t	*lidp;
 	uint			next_extent;
 	xfs_extent_t		*extp;
 
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efip);
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	efip->efi_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 
 	next_extent = efip->efi_next_extent;
 	ASSERT(next_extent < efip->efi_format.efi_nextents);
@@ -106,9 +100,8 @@ xfs_trans_get_efd(xfs_trans_t		*tp,
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)efdp);
-
-	return (efdp);
+	xfs_trans_add_item(tp, &efdp->efd_item);
+	return efdp;
 }
 
 /*
@@ -122,15 +115,11 @@ xfs_trans_log_efd_extent(xfs_trans_t		*tp,
 			 xfs_fsblock_t		start_block,
 			 xfs_extlen_t		ext_len)
 {
-	xfs_log_item_desc_t	*lidp;
 	uint			next_extent;
 	xfs_extent_t		*extp;
 
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)efdp);
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	efdp->efd_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 
 	next_extent = efdp->efd_next_extent;
 	ASSERT(next_extent < efdp->efd_format.efd_nextents);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 2559dfec946b..ccb34532768b 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -24,20 +24,16 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_trans_priv.h"
 #include "xfs_inode_item.h"
+#include "xfs_trace.h"
 
 #ifdef XFS_TRANS_DEBUG
 STATIC void
@@ -47,7 +43,6 @@ xfs_trans_inode_broot_debug(
 #define	xfs_trans_inode_broot_debug(ip)
 #endif
 
-
 /*
  * Get an inode and join it to the transaction.
  */
@@ -63,76 +58,94 @@ xfs_trans_iget(
 	int			error;
 
 	error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp);
-	if (!error && tp)
-		xfs_trans_ijoin(tp, *ipp, lock_flags);
+	if (!error && tp) {
+		xfs_trans_ijoin(tp, *ipp);
+		(*ipp)->i_itemp->ili_lock_flags = lock_flags;
+	}
 	return error;
 }
 
 /*
- * Add the locked inode to the transaction.
- * The inode must be locked, and it cannot be associated with any
- * transaction.  The caller must specify the locks already held
- * on the inode.
+ * Add a locked inode to the transaction.
+ *
+ * The inode must be locked, and it cannot be associated with any transaction.
  */
 void
 xfs_trans_ijoin(
-	xfs_trans_t	*tp,
-	xfs_inode_t	*ip,
-	uint		lock_flags)
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip)
 {
 	xfs_inode_log_item_t	*iip;
 
 	ASSERT(ip->i_transp == NULL);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-	ASSERT(lock_flags & XFS_ILOCK_EXCL);
 	if (ip->i_itemp == NULL)
 		xfs_inode_item_init(ip, ip->i_mount);
 	iip = ip->i_itemp;
-	ASSERT(iip->ili_flags == 0);
+	ASSERT(iip->ili_lock_flags == 0);
 
 	/*
 	 * Get a log_item_desc to point at the new item.
 	 */
-	(void) xfs_trans_add_item(tp, (xfs_log_item_t*)(iip));
+	xfs_trans_add_item(tp, &iip->ili_item);
 
 	xfs_trans_inode_broot_debug(ip);
 
 	/*
-	 * If the IO lock is already held, mark that in the inode log item.
-	 */
-	if (lock_flags & XFS_IOLOCK_EXCL) {
-		iip->ili_flags |= XFS_ILI_IOLOCKED_EXCL;
-	} else if (lock_flags & XFS_IOLOCK_SHARED) {
-		iip->ili_flags |= XFS_ILI_IOLOCKED_SHARED;
-	}
-
-	/*
 	 * Initialize i_transp so we can find it with xfs_inode_incore()
 	 * in xfs_trans_iget() above.
 	 */
 	ip->i_transp = tp;
 }
 
-
+/*
+ * Add a locked inode to the transaction.
+ *
+ *
+ * Grabs a reference to the inode which will be dropped when the transaction
+ * is commited.  The inode will also be unlocked at that point.  The inode
+ * must be locked, and it cannot be associated with any transaction.
+ */
+void
+xfs_trans_ijoin_ref(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	uint			lock_flags)
+{
+	xfs_trans_ijoin(tp, ip);
+	IHOLD(ip);
+	ip->i_itemp->ili_lock_flags = lock_flags;
+}
 
 /*
- * Mark the inode as not needing to be unlocked when the inode item's
- * IOP_UNLOCK() routine is called.  The inode must already be locked
- * and associated with the given transaction.
+ * Transactional inode timestamp update. Requires the inode to be locked and
+ * joined to the transaction supplied. Relies on the transaction subsystem to
+ * track dirty state and update/writeback the inode accordingly.
  */
-/*ARGSUSED*/
 void
-xfs_trans_ihold(
-	xfs_trans_t	*tp,
-	xfs_inode_t	*ip)
+xfs_trans_ichgtime(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	int			flags)
 {
-	ASSERT(ip->i_transp == tp);
-	ASSERT(ip->i_itemp != NULL);
+	struct inode		*inode = VFS_I(ip);
+	timespec_t		tv;
+
+	ASSERT(tp);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+	ASSERT(ip->i_transp == tp);
 
-	ip->i_itemp->ili_flags |= XFS_ILI_HOLD;
-}
+	tv = current_fs_time(inode->i_sb);
 
+	if ((flags & XFS_ICHGTIME_MOD) &&
+	    !timespec_equal(&inode->i_mtime, &tv)) {
+		inode->i_mtime = tv;
+	}
+	if ((flags & XFS_ICHGTIME_CHG) &&
+	    !timespec_equal(&inode->i_ctime, &tv)) {
+		inode->i_ctime = tv;
+	}
+}
 
 /*
  * This is called to mark the fields indicated in fieldmask as needing
@@ -149,17 +162,12 @@ xfs_trans_log_inode(
 	xfs_inode_t	*ip,
 	uint		flags)
 {
-	xfs_log_item_desc_t	*lidp;
-
 	ASSERT(ip->i_transp == tp);
 	ASSERT(ip->i_itemp != NULL);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 
-	lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp));
-	ASSERT(lidp != NULL);
-
 	tp->t_flags |= XFS_TRANS_DIRTY;
-	lidp->lid_flags |= XFS_LID_DIRTY;
+	ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY;
 
 	/*
 	 * Always OR in the bits from the ili_last_fields field.
diff --git a/fs/xfs/xfs_trans_item.c b/fs/xfs/xfs_trans_item.c
deleted file mode 100644
index f11d37d06dcc..000000000000
--- a/fs/xfs/xfs_trans_item.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
-/* XXX: from here down needed until struct xfs_trans has its own ailp */
-#include "xfs_bit.h"
-#include "xfs_buf_item.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_dir2.h"
-#include "xfs_dmapi.h"
-#include "xfs_mount.h"
-
-STATIC int	xfs_trans_unlock_chunk(xfs_log_item_chunk_t *,
-					int, int, xfs_lsn_t);
-
-/*
- * This is called to add the given log item to the transaction's
- * list of log items.  It must find a free log item descriptor
- * or allocate a new one and add the item to that descriptor.
- * The function returns a pointer to item descriptor used to point
- * to the new item.  The log item will now point to its new descriptor
- * with its li_desc field.
- */
-xfs_log_item_desc_t *
-xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
-{
-	xfs_log_item_desc_t	*lidp;
-	xfs_log_item_chunk_t	*licp;
-	int			i=0;
-
-	/*
-	 * If there are no free descriptors, allocate a new chunk
-	 * of them and put it at the front of the chunk list.
-	 */
-	if (tp->t_items_free == 0) {
-		licp = (xfs_log_item_chunk_t*)
-		       kmem_alloc(sizeof(xfs_log_item_chunk_t), KM_SLEEP);
-		ASSERT(licp != NULL);
-		/*
-		 * Initialize the chunk, and then
-		 * claim the first slot in the newly allocated chunk.
-		 */
-		xfs_lic_init(licp);
-		xfs_lic_claim(licp, 0);
-		licp->lic_unused = 1;
-		xfs_lic_init_slot(licp, 0);
-		lidp = xfs_lic_slot(licp, 0);
-
-		/*
-		 * Link in the new chunk and update the free count.
-		 */
-		licp->lic_next = tp->t_items.lic_next;
-		tp->t_items.lic_next = licp;
-		tp->t_items_free = XFS_LIC_NUM_SLOTS - 1;
-
-		/*
-		 * Initialize the descriptor and the generic portion
-		 * of the log item.
-		 *
-		 * Point the new slot at this item and return it.
-		 * Also point the log item at its currently active
-		 * descriptor and set the item's mount pointer.
-		 */
-		lidp->lid_item = lip;
-		lidp->lid_flags = 0;
-		lidp->lid_size = 0;
-		lip->li_desc = lidp;
-		lip->li_mountp = tp->t_mountp;
-		lip->li_ailp = tp->t_mountp->m_ail;
-		return lidp;
-	}
-
-	/*
-	 * Find the free descriptor. It is somewhere in the chunklist
-	 * of descriptors.
-	 */
-	licp = &tp->t_items;
-	while (licp != NULL) {
-		if (xfs_lic_vacancy(licp)) {
-			if (licp->lic_unused <= XFS_LIC_MAX_SLOT) {
-				i = licp->lic_unused;
-				ASSERT(xfs_lic_isfree(licp, i));
-				break;
-			}
-			for (i = 0; i <= XFS_LIC_MAX_SLOT; i++) {
-				if (xfs_lic_isfree(licp, i))
-					break;
-			}
-			ASSERT(i <= XFS_LIC_MAX_SLOT);
-			break;
-		}
-		licp = licp->lic_next;
-	}
-	ASSERT(licp != NULL);
-	/*
-	 * If we find a free descriptor, claim it,
-	 * initialize it, and return it.
-	 */
-	xfs_lic_claim(licp, i);
-	if (licp->lic_unused <= i) {
-		licp->lic_unused = i + 1;
-		xfs_lic_init_slot(licp, i);
-	}
-	lidp = xfs_lic_slot(licp, i);
-	tp->t_items_free--;
-	lidp->lid_item = lip;
-	lidp->lid_flags = 0;
-	lidp->lid_size = 0;
-	lip->li_desc = lidp;
-	lip->li_mountp = tp->t_mountp;
-	lip->li_ailp = tp->t_mountp->m_ail;
-	return lidp;
-}
-
-/*
- * Free the given descriptor.
- *
- * This requires setting the bit in the chunk's free mask corresponding
- * to the given slot.
- */
-void
-xfs_trans_free_item(xfs_trans_t	*tp, xfs_log_item_desc_t *lidp)
-{
-	uint			slot;
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_chunk_t	**licpp;
-
-	slot = xfs_lic_desc_to_slot(lidp);
-	licp = xfs_lic_desc_to_chunk(lidp);
-	xfs_lic_relse(licp, slot);
-	lidp->lid_item->li_desc = NULL;
-	tp->t_items_free++;
-
-	/*
-	 * If there are no more used items in the chunk and this is not
-	 * the chunk embedded in the transaction structure, then free
-	 * the chunk. First pull it from the chunk list and then
-	 * free it back to the heap.  We didn't bother with a doubly
-	 * linked list here because the lists should be very short
-	 * and this is not a performance path.  It's better to save
-	 * the memory of the extra pointer.
-	 *
-	 * Also decrement the transaction structure's count of free items
-	 * by the number in a chunk since we are freeing an empty chunk.
-	 */
-	if (xfs_lic_are_all_free(licp) && (licp != &(tp->t_items))) {
-		licpp = &(tp->t_items.lic_next);
-		while (*licpp != licp) {
-			ASSERT(*licpp != NULL);
-			licpp = &((*licpp)->lic_next);
-		}
-		*licpp = licp->lic_next;
-		kmem_free(licp);
-		tp->t_items_free -= XFS_LIC_NUM_SLOTS;
-	}
-}
-
-/*
- * This is called to find the descriptor corresponding to the given
- * log item.  It returns a pointer to the descriptor.
- * The log item MUST have a corresponding descriptor in the given
- * transaction.  This routine does not return NULL, it panics.
- *
- * The descriptor pointer is kept in the log item's li_desc field.
- * Just return it.
- */
-/*ARGSUSED*/
-xfs_log_item_desc_t *
-xfs_trans_find_item(xfs_trans_t	*tp, xfs_log_item_t *lip)
-{
-	ASSERT(lip->li_desc != NULL);
-
-	return lip->li_desc;
-}
-
-
-/*
- * Return a pointer to the first descriptor in the chunk list.
- * This does not return NULL if there are none, it panics.
- *
- * The first descriptor must be in either the first or second chunk.
- * This is because the only chunk allowed to be empty is the first.
- * All others are freed when they become empty.
- *
- * At some point this and xfs_trans_next_item() should be optimized
- * to quickly look at the mask to determine if there is anything to
- * look at.
- */
-xfs_log_item_desc_t *
-xfs_trans_first_item(xfs_trans_t *tp)
-{
-	xfs_log_item_chunk_t	*licp;
-	int			i;
-
-	licp = &tp->t_items;
-	/*
-	 * If it's not in the first chunk, skip to the second.
-	 */
-	if (xfs_lic_are_all_free(licp)) {
-		licp = licp->lic_next;
-	}
-
-	/*
-	 * Return the first non-free descriptor in the chunk.
-	 */
-	ASSERT(!xfs_lic_are_all_free(licp));
-	for (i = 0; i < licp->lic_unused; i++) {
-		if (xfs_lic_isfree(licp, i)) {
-			continue;
-		}
-
-		return xfs_lic_slot(licp, i);
-	}
-	cmn_err(CE_WARN, "xfs_trans_first_item() -- no first item");
-	return NULL;
-}
-
-
-/*
- * Given a descriptor, return the next descriptor in the chunk list.
- * This returns NULL if there are no more used descriptors in the list.
- *
- * We do this by first locating the chunk in which the descriptor resides,
- * and then scanning forward in the chunk and the list for the next
- * used descriptor.
- */
-/*ARGSUSED*/
-xfs_log_item_desc_t *
-xfs_trans_next_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
-{
-	xfs_log_item_chunk_t	*licp;
-	int			i;
-
-	licp = xfs_lic_desc_to_chunk(lidp);
-
-	/*
-	 * First search the rest of the chunk. The for loop keeps us
-	 * from referencing things beyond the end of the chunk.
-	 */
-	for (i = (int)xfs_lic_desc_to_slot(lidp) + 1; i < licp->lic_unused; i++) {
-		if (xfs_lic_isfree(licp, i)) {
-			continue;
-		}
-
-		return xfs_lic_slot(licp, i);
-	}
-
-	/*
-	 * Now search the next chunk.  It must be there, because the
-	 * next chunk would have been freed if it were empty.
-	 * If there is no next chunk, return NULL.
-	 */
-	if (licp->lic_next == NULL) {
-		return NULL;
-	}
-
-	licp = licp->lic_next;
-	ASSERT(!xfs_lic_are_all_free(licp));
-	for (i = 0; i < licp->lic_unused; i++) {
-		if (xfs_lic_isfree(licp, i)) {
-			continue;
-		}
-
-		return xfs_lic_slot(licp, i);
-	}
-	ASSERT(0);
-	/* NOTREACHED */
-	return NULL; /* keep gcc quite */
-}
-
-/*
- * This is called to unlock all of the items of a transaction and to free
- * all the descriptors of that transaction.
- *
- * It walks the list of descriptors and unlocks each item.  It frees
- * each chunk except that embedded in the transaction as it goes along.
- */
-void
-xfs_trans_free_items(
-	xfs_trans_t	*tp,
-	xfs_lsn_t	commit_lsn,
-	int		flags)
-{
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_chunk_t	*next_licp;
-	int			abort;
-
-	abort = flags & XFS_TRANS_ABORT;
-	licp = &tp->t_items;
-	/*
-	 * Special case the embedded chunk so we don't free it below.
-	 */
-	if (!xfs_lic_are_all_free(licp)) {
-		(void) xfs_trans_unlock_chunk(licp, 1, abort, commit_lsn);
-		xfs_lic_all_free(licp);
-		licp->lic_unused = 0;
-	}
-	licp = licp->lic_next;
-
-	/*
-	 * Unlock each item in each chunk and free the chunks.
-	 */
-	while (licp != NULL) {
-		ASSERT(!xfs_lic_are_all_free(licp));
-		(void) xfs_trans_unlock_chunk(licp, 1, abort, commit_lsn);
-		next_licp = licp->lic_next;
-		kmem_free(licp);
-		licp = next_licp;
-	}
-
-	/*
-	 * Reset the transaction structure's free item count.
-	 */
-	tp->t_items_free = XFS_LIC_NUM_SLOTS;
-	tp->t_items.lic_next = NULL;
-}
-
-
-
-/*
- * This is called to unlock the items associated with a transaction.
- * Items which were not logged should be freed.
- * Those which were logged must still be tracked so they can be unpinned
- * when the transaction commits.
- */
-void
-xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
-{
-	xfs_log_item_chunk_t	*licp;
-	xfs_log_item_chunk_t	*next_licp;
-	xfs_log_item_chunk_t	**licpp;
-	int			freed;
-
-	freed = 0;
-	licp = &tp->t_items;
-
-	/*
-	 * Special case the embedded chunk so we don't free.
-	 */
-	if (!xfs_lic_are_all_free(licp)) {
-		freed = xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
-	}
-	licpp = &(tp->t_items.lic_next);
-	licp = licp->lic_next;
-
-	/*
-	 * Unlock each item in each chunk, free non-dirty descriptors,
-	 * and free empty chunks.
-	 */
-	while (licp != NULL) {
-		ASSERT(!xfs_lic_are_all_free(licp));
-		freed += xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
-		next_licp = licp->lic_next;
-		if (xfs_lic_are_all_free(licp)) {
-			*licpp = next_licp;
-			kmem_free(licp);
-			freed -= XFS_LIC_NUM_SLOTS;
-		} else {
-			licpp = &(licp->lic_next);
-		}
-		ASSERT(*licpp == next_licp);
-		licp = next_licp;
-	}
-
-	/*
-	 * Fix the free descriptor count in the transaction.
-	 */
-	tp->t_items_free += freed;
-}
-
-/*
- * Unlock each item pointed to by a descriptor in the given chunk.
- * Stamp the commit lsn into each item if necessary.
- * Free descriptors pointing to items which are not dirty if freeing_chunk
- * is zero. If freeing_chunk is non-zero, then we need to unlock all
- * items in the chunk.
- * 
- * Return the number of descriptors freed.
- */
-STATIC int
-xfs_trans_unlock_chunk(
-	xfs_log_item_chunk_t	*licp,
-	int			freeing_chunk,
-	int			abort,
-	xfs_lsn_t		commit_lsn)
-{
-	xfs_log_item_desc_t	*lidp;
-	xfs_log_item_t		*lip;
-	int			i;
-	int			freed;
-
-	freed = 0;
-	lidp = licp->lic_descs;
-	for (i = 0; i < licp->lic_unused; i++, lidp++) {
-		if (xfs_lic_isfree(licp, i)) {
-			continue;
-		}
-		lip = lidp->lid_item;
-		lip->li_desc = NULL;
-
-		if (commit_lsn != NULLCOMMITLSN)
-			IOP_COMMITTING(lip, commit_lsn);
-		if (abort)
-			lip->li_flags |= XFS_LI_ABORTED;
-		IOP_UNLOCK(lip);
-
-		/*
-		 * Free the descriptor if the item is not dirty
-		 * within this transaction and the caller is not
-		 * going to just free the entire thing regardless.
-		 */
-		if (!(freeing_chunk) &&
-		    (!(lidp->lid_flags & XFS_LID_DIRTY) || abort)) {
-			xfs_lic_relse(licp, i);
-			freed++;
-		}
-	}
-
-	return freed;
-}
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index c6e4f2c8de6e..62da86c90de5 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -23,23 +23,10 @@ struct xfs_log_item_desc;
 struct xfs_mount;
 struct xfs_trans;
 
-/*
- * From xfs_trans_item.c
- */
-struct xfs_log_item_desc	*xfs_trans_add_item(struct xfs_trans *,
-					    struct xfs_log_item *);
-void				xfs_trans_free_item(struct xfs_trans *,
-					    struct xfs_log_item_desc *);
-struct xfs_log_item_desc	*xfs_trans_find_item(struct xfs_trans *,
-					     struct xfs_log_item *);
-struct xfs_log_item_desc	*xfs_trans_first_item(struct xfs_trans *);
-struct xfs_log_item_desc	*xfs_trans_next_item(struct xfs_trans *,
-					     struct xfs_log_item_desc *);
-
-void	xfs_trans_unlock_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn);
+void	xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
+void	xfs_trans_del_item(struct xfs_log_item *);
 void	xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn,
 				int flags);
-
 void	xfs_trans_item_committed(struct xfs_log_item *lip,
 				xfs_lsn_t commit_lsn, int aborted);
 void	xfs_trans_unreserve_and_mod_sb(struct xfs_trans *tp);
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
index 320775295e32..26d1867d8156 100644
--- a/fs/xfs/xfs_types.h
+++ b/fs/xfs/xfs_types.h
@@ -73,8 +73,6 @@ typedef	__int32_t	xfs_tid_t;	/* transaction identifier */
 typedef	__uint32_t	xfs_dablk_t;	/* dir/attr block number (in file) */
 typedef	__uint32_t	xfs_dahash_t;	/* dir/attr hash value */
 
-typedef __uint16_t	xfs_prid_t;	/* prid_t truncated to 16bits in XFS */
-
 typedef __uint32_t	xlog_tid_t;	/* transaction ID type */
 
 /*
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 4d88616bde91..8b32d1a4c5a1 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -25,18 +25,14 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
-#include "xfs_rw.h"
 #include "xfs_itable.h"
 #include "xfs_utils.h"
 
@@ -60,7 +56,6 @@ xfs_dir_ialloc(
 	mode_t		mode,
 	xfs_nlink_t	nlink,
 	xfs_dev_t	rdev,
-	cred_t		*credp,
 	prid_t		prid,		/* project id */
 	int		okalloc,	/* ok to allocate new space */
 	xfs_inode_t	**ipp,		/* pointer to inode; it will be
@@ -97,7 +92,7 @@ xfs_dir_ialloc(
 	 * transaction commit so that no other process can steal
 	 * the inode(s) that we've just allocated.
 	 */
-	code = xfs_ialloc(tp, dp, mode, nlink, rdev, credp, prid, okalloc,
+	code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid, okalloc,
 			  &ialloc_context, &call_again, &ip);
 
 	/*
@@ -201,7 +196,7 @@ xfs_dir_ialloc(
 		 * other allocations in this allocation group,
 		 * this call should always succeed.
 		 */
-		code = xfs_ialloc(tp, dp, mode, nlink, rdev, credp, prid,
+		code = xfs_ialloc(tp, dp, mode, nlink, rdev, prid,
 				  okalloc, &ialloc_context, &call_again, &ip);
 
 		/*
@@ -239,7 +234,7 @@ xfs_droplink(
 {
 	int	error;
 
-	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
 
 	ASSERT (ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink--;
@@ -303,7 +298,7 @@ xfs_bumplink(
 {
 	if (ip->i_d.di_nlink >= XFS_MAXLINK)
 		return XFS_ERROR(EMLINK);
-	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
 
 	ASSERT(ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink++;
@@ -324,86 +319,3 @@ xfs_bumplink(
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 	return 0;
 }
-
-/*
- * Try to truncate the given file to 0 length.  Currently called
- * only out of xfs_remove when it has to truncate a file to free
- * up space for the remove to proceed.
- */
-int
-xfs_truncate_file(
-	xfs_mount_t	*mp,
-	xfs_inode_t	*ip)
-{
-	xfs_trans_t	*tp;
-	int		error;
-
-#ifdef QUOTADEBUG
-	/*
-	 * This is called to truncate the quotainodes too.
-	 */
-	if (XFS_IS_UQUOTA_ON(mp)) {
-		if (ip->i_ino != mp->m_sb.sb_uquotino)
-			ASSERT(ip->i_udquot);
-	}
-	if (XFS_IS_OQUOTA_ON(mp)) {
-		if (ip->i_ino != mp->m_sb.sb_gquotino)
-			ASSERT(ip->i_gdquot);
-	}
-#endif
-	/*
-	 * Make the call to xfs_itruncate_start before starting the
-	 * transaction, because we cannot make the call while we're
-	 * in a transaction.
-	 */
-	xfs_ilock(ip, XFS_IOLOCK_EXCL);
-	error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, (xfs_fsize_t)0);
-	if (error) {
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-		return error;
-	}
-
-	tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
-	if ((error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
-				      XFS_TRANS_PERM_LOG_RES,
-				      XFS_ITRUNCATE_LOG_COUNT))) {
-		xfs_trans_cancel(tp, 0);
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-		return error;
-	}
-
-	/*
-	 * Follow the normal truncate locking protocol.  Since we
-	 * hold the inode in the transaction, we know that its number
-	 * of references will stay constant.
-	 */
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
-	/*
-	 * Signal a sync xaction.  The only case where that isn't
-	 * the case is if we're truncating an already unlinked file
-	 * on a wsync fs.  In that case, we know the blocks can't
-	 * reappear in the file because the links to file are
-	 * permanently toast.  Currently, we're always going to
-	 * want a sync transaction because this code is being
-	 * called from places where nlink is guaranteed to be 1
-	 * but I'm leaving the tests in to protect against future
-	 * changes -- rcc.
-	 */
-	error = xfs_itruncate_finish(&tp, ip, (xfs_fsize_t)0,
-				     XFS_DATA_FORK,
-				     ((ip->i_d.di_nlink != 0 ||
-				       !(mp->m_flags & XFS_MOUNT_WSYNC))
-				      ? 1 : 0));
-	if (error) {
-		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
-				 XFS_TRANS_ABORT);
-	} else {
-		xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-	}
-	xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-
-	return error;
-}
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
index ef321225d269..456fca314933 100644
--- a/fs/xfs/xfs_utils.h
+++ b/fs/xfs/xfs_utils.h
@@ -18,10 +18,8 @@
 #ifndef __XFS_UTILS_H__
 #define __XFS_UTILS_H__
 
-extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
 extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
-				xfs_dev_t, cred_t *, prid_t, int,
-				xfs_inode_t **, int *);
+				xfs_dev_t, prid_t, int, xfs_inode_t **, int *);
 extern int xfs_droplink(xfs_trans_t *, xfs_inode_t *);
 extern int xfs_bumplink(xfs_trans_t *, xfs_inode_t *);
 extern void xfs_bump_ino_vers2(xfs_trans_t *, xfs_inode_t *);
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index c1646838898f..8e4a63c4151a 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -26,19 +26,14 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_dir2.h"
-#include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_itable.h"
-#include "xfs_btree.h"
 #include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
@@ -73,7 +68,7 @@ xfs_setattr(
 	struct xfs_dquot	*udqp, *gdqp, *olddquot1, *olddquot2;
 	int			need_iolock = 1;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_setattr(ip);
 
 	if (mp->m_flags & XFS_MOUNT_RDONLY)
 		return XFS_ERROR(EROFS);
@@ -119,7 +114,7 @@ xfs_setattr(
 		 */
 		ASSERT(udqp == NULL);
 		ASSERT(gdqp == NULL);
-		code = xfs_qm_vop_dqalloc(ip, uid, gid, ip->i_d.di_projid,
+		code = xfs_qm_vop_dqalloc(ip, uid, gid, xfs_get_projid(ip),
 					 qflags, &udqp, &gdqp);
 		if (code)
 			return code;
@@ -143,16 +138,6 @@ xfs_setattr(
 			goto error_return;
 		}
 	} else {
-		if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) &&
-		    !(flags & XFS_ATTR_DMI)) {
-			int dmflags = AT_DELAY_FLAG(flags) | DM_SEM_FLAG_WR;
-			code = XFS_SEND_DATA(mp, DM_EVENT_TRUNCATE, ip,
-				iattr->ia_size, 0, dmflags, NULL);
-			if (code) {
-				lock_flags = 0;
-				goto error_return;
-			}
-		}
 		if (need_iolock)
 			lock_flags |= XFS_IOLOCK_EXCL;
 	}
@@ -199,8 +184,11 @@ xfs_setattr(
 		    ip->i_size == 0 && ip->i_d.di_nextents == 0) {
 			xfs_iunlock(ip, XFS_ILOCK_EXCL);
 			lock_flags &= ~XFS_ILOCK_EXCL;
-			if (mask & ATTR_CTIME)
-				xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+			if (mask & ATTR_CTIME) {
+				inode->i_mtime = inode->i_ctime =
+						current_fs_time(inode->i_sb);
+				xfs_mark_inode_dirty_sync(ip);
+			}
 			code = 0;
 			goto error_return;
 		}
@@ -236,8 +224,11 @@ xfs_setattr(
 			 * transaction to modify the i_size.
 			 */
 			code = xfs_zero_eof(ip, iattr->ia_size, ip->i_size);
+			if (code)
+				goto error_return;
 		}
 		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		lock_flags &= ~XFS_ILOCK_EXCL;
 
 		/*
 		 * We are going to log the inode size change in this
@@ -251,40 +242,38 @@ xfs_setattr(
 		 * really care about here and prevents waiting for other data
 		 * not within the range we care about here.
 		 */
-		if (!code &&
-		    ip->i_size != ip->i_d.di_size &&
+		if (ip->i_size != ip->i_d.di_size &&
 		    iattr->ia_size > ip->i_d.di_size) {
 			code = xfs_flush_pages(ip,
 					ip->i_d.di_size, iattr->ia_size,
 					XBF_ASYNC, FI_NONE);
+			if (code)
+				goto error_return;
 		}
 
 		/* wait for all I/O to complete */
 		xfs_ioend_wait(ip);
 
-		if (!code)
-			code = xfs_itruncate_data(ip, iattr->ia_size);
-		if (code) {
-			ASSERT(tp == NULL);
-			lock_flags &= ~XFS_ILOCK_EXCL;
-			ASSERT(lock_flags == XFS_IOLOCK_EXCL || !need_iolock);
+		code = -block_truncate_page(inode->i_mapping, iattr->ia_size,
+					    xfs_get_blocks);
+		if (code)
 			goto error_return;
-		}
+
 		tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE);
-		if ((code = xfs_trans_reserve(tp, 0,
-					     XFS_ITRUNCATE_LOG_RES(mp), 0,
-					     XFS_TRANS_PERM_LOG_RES,
-					     XFS_ITRUNCATE_LOG_COUNT))) {
-			xfs_trans_cancel(tp, 0);
-			if (need_iolock)
-				xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-			return code;
-		}
+		code = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0,
+					 XFS_TRANS_PERM_LOG_RES,
+					 XFS_ITRUNCATE_LOG_COUNT);
+		if (code)
+			goto error_return;
+
+		truncate_setsize(inode, iattr->ia_size);
+
 		commit_flags = XFS_TRANS_RELEASE_LOG_RES;
+		lock_flags |= XFS_ILOCK_EXCL;
+
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
 
-		xfs_trans_ijoin(tp, ip, lock_flags);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		/*
 		 * Only change the c/mtime if we are changing the size
@@ -334,8 +323,7 @@ xfs_setattr(
 			xfs_iflags_set(ip, XFS_ITRUNCATED);
 		}
 	} else if (tp) {
-		xfs_trans_ijoin(tp, ip, lock_flags);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 	}
 
 	/*
@@ -470,17 +458,10 @@ xfs_setattr(
 			return XFS_ERROR(code);
 	}
 
-	if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE) &&
-	    !(flags & XFS_ATTR_DMI)) {
-		(void) XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
-					NULL, DM_RIGHT_NULL, NULL, NULL,
-					0, 0, AT_DELAY_FLAG(flags));
-	}
 	return 0;
 
  abort_return:
 	commit_flags |= XFS_TRANS_ABORT;
-	/* FALLTHROUGH */
  error_return:
 	xfs_qm_dqrele(udqp);
 	xfs_qm_dqrele(gdqp);
@@ -516,7 +497,7 @@ xfs_readlink_bmap(
 	int		error = 0;
 
 	error = xfs_bmapi(NULL, ip, 0, XFS_B_TO_FSB(mp, pathlen), 0, NULL, 0,
-			mval, &nmaps, NULL, NULL);
+			mval, &nmaps, NULL);
 	if (error)
 		goto out;
 
@@ -557,7 +538,7 @@ xfs_readlink(
 	int		pathlen;
 	int		error = 0;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_readlink(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
@@ -613,14 +594,14 @@ xfs_free_eofblocks(
 	 */
 	end_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)ip->i_size));
 	last_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp));
-	map_len = last_fsb - end_fsb;
-	if (map_len <= 0)
+	if (last_fsb <= end_fsb)
 		return 0;
+	map_len = last_fsb - end_fsb;
 
 	nimaps = 1;
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 	error = xfs_bmapi(NULL, ip, end_fsb, map_len, 0,
-			  NULL, 0, &imap, &nimaps, NULL, NULL);
+			  NULL, 0, &imap, &nimaps, NULL);
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 
 	if (!error && (nimaps != 0) &&
@@ -675,10 +656,7 @@ xfs_free_eofblocks(
 		}
 
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_ijoin(tp, ip,
-				XFS_IOLOCK_EXCL |
-				XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		error = xfs_itruncate_finish(&tp, ip,
 					     ip->i_size,
@@ -750,8 +728,7 @@ xfs_inactive_symlink_rmt(
 	xfs_ilock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
 	size = (int)ip->i_d.di_size;
 	ip->i_d.di_size = 0;
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 	/*
 	 * Find the block(s) so we can inval and unmap them.
@@ -761,7 +738,7 @@ xfs_inactive_symlink_rmt(
 	nmaps = ARRAY_SIZE(mval);
 	if ((error = xfs_bmapi(tp, ip, 0, XFS_B_TO_FSB(mp, size),
 			XFS_BMAPI_METADATA, &first_block, 0, mval, &nmaps,
-			&free_list, NULL)))
+			&free_list)))
 		goto error0;
 	/*
 	 * Invalidate the block(s).
@@ -776,7 +753,7 @@ xfs_inactive_symlink_rmt(
 	 * Unmap the dead block(s) to the free_list.
 	 */
 	if ((error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
-			&first_block, &free_list, NULL, &done)))
+			&first_block, &free_list, &done)))
 		goto error1;
 	ASSERT(done);
 	/*
@@ -795,8 +772,7 @@ xfs_inactive_symlink_rmt(
 	 * Mark it dirty so it will be logged and moved forward in the log as
 	 * part of every commit.
 	 */
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 	/*
 	 * Get a new, empty transaction to return to our caller.
@@ -929,8 +905,7 @@ xfs_inactive_attrs(
 		goto error_cancel;
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 	xfs_idestroy_fork(ip, XFS_ATTR_FORK);
 
 	ASSERT(ip->i_d.di_anextents == 0);
@@ -1035,8 +1010,6 @@ xfs_inactive(
 	int		error;
 	int		truncate;
 
-	xfs_itrace_entry(ip);
-
 	/*
 	 * If the inode is already free, then there can be nothing
 	 * to clean up here.
@@ -1060,9 +1033,6 @@ xfs_inactive(
 
 	mp = ip->i_mount;
 
-	if (ip->i_d.di_nlink == 0 && DM_EVENT_ENABLED(ip, DM_EVENT_DESTROY))
-		XFS_SEND_DESTROY(mp, ip, DM_RIGHT_NULL);
-
 	error = 0;
 
 	/* If this is a read-only mount, don't do this (would generate I/O) */
@@ -1120,8 +1090,7 @@ xfs_inactive(
 		}
 
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		/*
 		 * normally, we have to run xfs_itruncate_finish sync.
@@ -1154,8 +1123,7 @@ xfs_inactive(
 			return VN_INACTIVE_CACHE;
 		}
 
-		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 	} else {
 		error = xfs_trans_reserve(tp, 0,
 					  XFS_IFREE_LOG_RES(mp),
@@ -1168,8 +1136,7 @@ xfs_inactive(
 		}
 
 		xfs_ilock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
-		xfs_trans_ijoin(tp, ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 	}
 
 	/*
@@ -1257,7 +1224,7 @@ xfs_lookup(
 	int			error;
 	uint			lock_mode;
 
-	xfs_itrace_entry(dp);
+	trace_xfs_lookup(dp, name);
 
 	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
 		return XFS_ERROR(EIO);
@@ -1289,8 +1256,7 @@ xfs_create(
 	struct xfs_name		*name,
 	mode_t			mode,
 	xfs_dev_t		rdev,
-	xfs_inode_t		**ipp,
-	cred_t			*credp)
+	xfs_inode_t		**ipp)
 {
 	int			is_dir = S_ISDIR(mode);
 	struct xfs_mount	*mp = dp->i_mount;
@@ -1302,32 +1268,22 @@ xfs_create(
 	boolean_t		unlock_dp_on_error = B_FALSE;
 	uint			cancel_flags;
 	int			committed;
-	xfs_prid_t		prid;
+	prid_t			prid;
 	struct xfs_dquot	*udqp = NULL;
 	struct xfs_dquot	*gdqp = NULL;
 	uint			resblks;
 	uint			log_res;
 	uint			log_count;
 
-	xfs_itrace_entry(dp);
+	trace_xfs_create(dp, name);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_CREATE)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
-				dp, DM_RIGHT_NULL, NULL,
-				DM_RIGHT_NULL, name->name, NULL,
-				mode, 0, 0);
-
-		if (error)
-			return error;
-	}
-
 	if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
-		prid = dp->i_d.di_projid;
+		prid = xfs_get_projid(dp);
 	else
-		prid = dfltprid;
+		prid = XFS_PROJID_DEFAULT;
 
 	/*
 	 * Make sure that we have allocated dquot(s) on disk.
@@ -1406,7 +1362,7 @@ xfs_create(
 	 * entry pointing to them, but a directory also the "." entry
 	 * pointing to itself.
 	 */
-	error = xfs_dir_ialloc(&tp, dp, mode, is_dir ? 2 : 1, rdev, credp,
+	error = xfs_dir_ialloc(&tp, dp, mode, is_dir ? 2 : 1, rdev,
 			       prid, resblks > 0, &ip, &committed);
 	if (error) {
 		if (error == ENOSPC)
@@ -1427,8 +1383,7 @@ xfs_create(
 	 * the transaction cancel unlocking dp so don't do it explicitly in the
 	 * error path.
 	 */
-	IHOLD(dp);
-	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
 	unlock_dp_on_error = B_FALSE;
 
 	error = xfs_dir_createname(tp, dp, name, ip->i_ino,
@@ -1438,7 +1393,7 @@ xfs_create(
 		ASSERT(error != ENOSPC);
 		goto out_trans_abort;
 	}
-	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
 
 	if (is_dir) {
@@ -1487,16 +1442,7 @@ xfs_create(
 	xfs_qm_dqrele(gdqp);
 
 	*ipp = ip;
-
-	/* Fallthrough to std_return with error = 0  */
- std_return:
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTCREATE)) {
-		XFS_SEND_NAMESP(mp, DM_EVENT_POSTCREATE, dp, DM_RIGHT_NULL,
-				ip, DM_RIGHT_NULL, name->name, NULL, mode,
-				error, 0);
-	}
-
-	return error;
+	return 0;
 
  out_bmap_cancel:
 	xfs_bmap_cancel(&free_list);
@@ -1510,8 +1456,8 @@ xfs_create(
 
 	if (unlock_dp_on_error)
 		xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
-	goto std_return;
+ std_return:
+	return error;
 
  out_abort_rele:
 	/*
@@ -1726,20 +1672,11 @@ xfs_remove(
 	uint			resblks;
 	uint			log_count;
 
-	xfs_itrace_entry(dp);
-	xfs_itrace_entry(ip);
+	trace_xfs_remove(dp, name);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_REMOVE)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_REMOVE, dp, DM_RIGHT_NULL,
-					NULL, DM_RIGHT_NULL, name->name, NULL,
-					ip->i_d.di_mode, 0, 0);
-		if (error)
-			return error;
-	}
-
 	error = xfs_qm_dqattach(dp, 0);
 	if (error)
 		goto std_return;
@@ -1782,15 +1719,8 @@ xfs_remove(
 
 	xfs_lock_two_inodes(dp, ip, XFS_ILOCK_EXCL);
 
-	/*
-	 * At this point, we've gotten both the directory and the entry
-	 * inodes locked.
-	 */
-	IHOLD(ip);
-	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
-
-	IHOLD(dp);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
 
 	/*
 	 * If we're removing a directory perform some additional validation.
@@ -1814,7 +1744,7 @@ xfs_remove(
 		ASSERT(error != ENOENT);
 		goto out_bmap_cancel;
 	}
-	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 
 	if (is_dir) {
 		/*
@@ -1877,21 +1807,15 @@ xfs_remove(
 	if (!is_dir && link_zero && xfs_inode_is_filestream(ip))
 		xfs_filestream_deassociate(ip);
 
- std_return:
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTREMOVE)) {
-		XFS_SEND_NAMESP(mp, DM_EVENT_POSTREMOVE, dp, DM_RIGHT_NULL,
-				NULL, DM_RIGHT_NULL, name->name, NULL,
-				ip->i_d.di_mode, error, 0);
-	}
-
-	return error;
+	return 0;
 
  out_bmap_cancel:
 	xfs_bmap_cancel(&free_list);
 	cancel_flags |= XFS_TRANS_ABORT;
  out_trans_cancel:
 	xfs_trans_cancel(tp, cancel_flags);
-	goto std_return;
+ std_return:
+	return error;
 }
 
 int
@@ -1909,25 +1833,13 @@ xfs_link(
 	int			committed;
 	int			resblks;
 
-	xfs_itrace_entry(tdp);
-	xfs_itrace_entry(sip);
+	trace_xfs_link(tdp, target_name);
 
 	ASSERT(!S_ISDIR(sip->i_d.di_mode));
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
-	if (DM_EVENT_ENABLED(tdp, DM_EVENT_LINK)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_LINK,
-					tdp, DM_RIGHT_NULL,
-					sip, DM_RIGHT_NULL,
-					target_name->name, NULL, 0, 0, 0);
-		if (error)
-			return error;
-	}
-
-	/* Return through std_return after this point. */
-
 	error = xfs_qm_dqattach(sip, 0);
 	if (error)
 		goto std_return;
@@ -1953,15 +1865,8 @@ xfs_link(
 
 	xfs_lock_two_inodes(sip, tdp, XFS_ILOCK_EXCL);
 
-	/*
-	 * Increment vnode ref counts since xfs_trans_commit &
-	 * xfs_trans_cancel will both unlock the inodes and
-	 * decrement the associated ref counts.
-	 */
-	IHOLD(sip);
-	IHOLD(tdp);
-	xfs_trans_ijoin(tp, sip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, sip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, tdp, XFS_ILOCK_EXCL);
 
 	/*
 	 * If the source has too many links, we can't make any more to it.
@@ -1977,7 +1882,7 @@ xfs_link(
 	 * the tree quota mechanism could be circumvented.
 	 */
 	if (unlikely((tdp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
-		     (tdp->i_d.di_projid != sip->i_d.di_projid))) {
+		     (xfs_get_projid(tdp) != xfs_get_projid(sip)))) {
 		error = XFS_ERROR(EXDEV);
 		goto error_return;
 	}
@@ -1992,7 +1897,7 @@ xfs_link(
 					&first_block, &free_list, resblks);
 	if (error)
 		goto abort_return;
-	xfs_ichgtime(tdp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, tdp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, tdp, XFS_ILOG_CORE);
 
 	error = xfs_bumplink(tp, sip);
@@ -2014,27 +1919,14 @@ xfs_link(
 		goto abort_return;
 	}
 
-	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-	if (error)
-		goto std_return;
-
-	/* Fall through to std_return with error = 0. */
-std_return:
-	if (DM_EVENT_ENABLED(sip, DM_EVENT_POSTLINK)) {
-		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTLINK,
-				tdp, DM_RIGHT_NULL,
-				sip, DM_RIGHT_NULL,
-				target_name->name, NULL, 0, error, 0);
-	}
-	return error;
+	return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
 
  abort_return:
 	cancel_flags |= XFS_TRANS_ABORT;
-	/* FALLTHROUGH */
-
  error_return:
 	xfs_trans_cancel(tp, cancel_flags);
-	goto std_return;
+ std_return:
+	return error;
 }
 
 int
@@ -2043,8 +1935,7 @@ xfs_symlink(
 	struct xfs_name		*link_name,
 	const char		*target_path,
 	mode_t			mode,
-	xfs_inode_t		**ipp,
-	cred_t			*credp)
+	xfs_inode_t		**ipp)
 {
 	xfs_mount_t		*mp = dp->i_mount;
 	xfs_trans_t		*tp;
@@ -2065,7 +1956,7 @@ xfs_symlink(
 	int			byte_cnt;
 	int			n;
 	xfs_buf_t		*bp;
-	xfs_prid_t		prid;
+	prid_t			prid;
 	struct xfs_dquot	*udqp, *gdqp;
 	uint			resblks;
 
@@ -2074,7 +1965,7 @@ xfs_symlink(
 	ip = NULL;
 	tp = NULL;
 
-	xfs_itrace_entry(dp);
+	trace_xfs_symlink(dp, link_name);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
@@ -2086,22 +1977,11 @@ xfs_symlink(
 	if (pathlen >= MAXPATHLEN)      /* total string too long */
 		return XFS_ERROR(ENAMETOOLONG);
 
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_SYMLINK)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp,
-					DM_RIGHT_NULL, NULL, DM_RIGHT_NULL,
-					link_name->name,
-					(unsigned char *)target_path, 0, 0, 0);
-		if (error)
-			return error;
-	}
-
-	/* Return through std_return after this point. */
-
 	udqp = gdqp = NULL;
 	if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
-		prid = dp->i_d.di_projid;
+		prid = xfs_get_projid(dp);
 	else
-		prid = (xfs_prid_t)dfltprid;
+		prid = XFS_PROJID_DEFAULT;
 
 	/*
 	 * Make sure that we have allocated dquot(s) on disk.
@@ -2167,8 +2047,8 @@ xfs_symlink(
 	/*
 	 * Allocate an inode for the symlink.
 	 */
-	error = xfs_dir_ialloc(&tp, dp, S_IFLNK | (mode & ~S_IFMT),
-			       1, 0, credp, prid, resblks > 0, &ip, NULL);
+	error = xfs_dir_ialloc(&tp, dp, S_IFLNK | (mode & ~S_IFMT), 1, 0,
+			       prid, resblks > 0, &ip, NULL);
 	if (error) {
 		if (error == ENOSPC)
 			goto error_return;
@@ -2180,8 +2060,7 @@ xfs_symlink(
 	 * transaction cancel unlocking dp so don't do it explicitly in the
 	 * error path.
 	 */
-	IHOLD(dp);
-	xfs_trans_ijoin(tp, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, dp, XFS_ILOCK_EXCL);
 	unlock_dp_on_error = B_FALSE;
 
 	/*
@@ -2215,7 +2094,7 @@ xfs_symlink(
 		error = xfs_bmapi(tp, ip, first_fsb, fs_blocks,
 				  XFS_BMAPI_WRITE | XFS_BMAPI_METADATA,
 				  &first_block, resblks, mval, &nmaps,
-				  &free_list, NULL);
+				  &free_list);
 		if (error) {
 			goto error1;
 		}
@@ -2251,7 +2130,7 @@ xfs_symlink(
 					&first_block, &free_list, resblks);
 	if (error)
 		goto error1;
-	xfs_ichgtime(dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
 
 	/*
@@ -2278,21 +2157,8 @@ xfs_symlink(
 	xfs_qm_dqrele(udqp);
 	xfs_qm_dqrele(gdqp);
 
-	/* Fall through to std_return with error = 0 or errno from
-	 * xfs_trans_commit	*/
-std_return:
-	if (DM_EVENT_ENABLED(dp, DM_EVENT_POSTSYMLINK)) {
-		(void) XFS_SEND_NAMESP(mp, DM_EVENT_POSTSYMLINK,
-					dp, DM_RIGHT_NULL,
-					error ? NULL : ip,
-					DM_RIGHT_NULL, link_name->name,
-					(unsigned char *)target_path,
-					0, error, 0);
-	}
-
-	if (!error)
-		*ipp = ip;
-	return error;
+	*ipp = ip;
+	return 0;
 
  error2:
 	IRELE(ip);
@@ -2306,8 +2172,8 @@ std_return:
 
 	if (unlock_dp_on_error)
 		xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
-	goto std_return;
+ std_return:
+	return error;
 }
 
 int
@@ -2333,13 +2199,12 @@ xfs_set_dmattrs(
 		return error;
 	}
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
 
 	ip->i_d.di_dmevmask = evmask;
 	ip->i_d.di_dmstate  = state;
 
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	IHOLD(ip);
 	error = xfs_trans_commit(tp, 0);
 
 	return error;
@@ -2390,7 +2255,7 @@ xfs_alloc_file_space(
 	int			committed;
 	int			error;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_alloc_file_space(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
@@ -2408,29 +2273,13 @@ xfs_alloc_file_space(
 	count = len;
 	imapp = &imaps[0];
 	nimaps = 1;
-	bmapi_flag = XFS_BMAPI_WRITE | (alloc_type ? XFS_BMAPI_PREALLOC : 0);
+	bmapi_flag = XFS_BMAPI_WRITE | alloc_type;
 	startoffset_fsb	= XFS_B_TO_FSBT(mp, offset);
 	allocatesize_fsb = XFS_B_TO_FSB(mp, count);
 
-	/*	Generate a DMAPI event if needed.	*/
-	if (alloc_type != 0 && offset < ip->i_size &&
-			(attr_flags & XFS_ATTR_DMI) == 0  &&
-			DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
-		xfs_off_t           end_dmi_offset;
-
-		end_dmi_offset = offset+len;
-		if (end_dmi_offset > ip->i_size)
-			end_dmi_offset = ip->i_size;
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, offset,
-				      end_dmi_offset - offset, 0, NULL);
-		if (error)
-			return error;
-	}
-
 	/*
 	 * Allocate file space until done or until there is an error
 	 */
-retry:
 	while (allocatesize_fsb && !error) {
 		xfs_fileoff_t	s, e;
 
@@ -2451,15 +2300,22 @@ retry:
 			e = allocatesize_fsb;
 		}
 
+		/*
+		 * The transaction reservation is limited to a 32-bit block
+		 * count, hence we need to limit the number of blocks we are
+		 * trying to reserve to avoid an overflow. We can't allocate
+		 * more than @nimaps extents, and an extent is limited on disk
+		 * to MAXEXTLEN (21 bits), so use that to enforce the limit.
+		 */
+		resblks = min_t(xfs_fileoff_t, (e - s), (MAXEXTLEN * nimaps));
 		if (unlikely(rt)) {
-			resrtextents = qblocks = (uint)(e - s);
+			resrtextents = qblocks = resblks;
 			resrtextents /= mp->m_sb.sb_rextsize;
 			resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
 			quota_flag = XFS_QMOPT_RES_RTBLKS;
 		} else {
 			resrtextents = 0;
-			resblks = qblocks = \
-				XFS_DIOSTRAT_SPACE_RES(mp, (uint)(e - s));
+			resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resblks);
 			quota_flag = XFS_QMOPT_RES_REGBLKS;
 		}
 
@@ -2488,8 +2344,7 @@ retry:
 		if (error)
 			goto error1;
 
-		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		/*
 		 * Issue the xfs_bmapi() call to allocate the blocks
@@ -2498,7 +2353,7 @@ retry:
 		error = xfs_bmapi(tp, ip, startoffset_fsb,
 				  allocatesize_fsb, bmapi_flag,
 				  &firstfsb, 0, imapp, &nimaps,
-				  &free_list, NULL);
+				  &free_list);
 		if (error) {
 			goto error0;
 		}
@@ -2527,17 +2382,6 @@ retry:
 		startoffset_fsb += allocated_fsb;
 		allocatesize_fsb -= allocated_fsb;
 	}
-dmapi_enospc_check:
-	if (error == ENOSPC && (attr_flags & XFS_ATTR_DMI) == 0 &&
-	    DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE)) {
-		error = XFS_SEND_NAMESP(mp, DM_EVENT_NOSPACE,
-				ip, DM_RIGHT_NULL,
-				ip, DM_RIGHT_NULL,
-				NULL, NULL, 0, 0, 0); /* Delay flag intentionally unused */
-		if (error == 0)
-			goto retry;	/* Maybe DMAPI app. has made space */
-		/* else fall through with error from XFS_SEND_DATA */
-	}
 
 	return error;
 
@@ -2548,7 +2392,7 @@ error0:	/* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
 error1:	/* Just cancel transaction */
 	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-	goto dmapi_enospc_check;
+	return error;
 }
 
 /*
@@ -2588,9 +2432,9 @@ xfs_zero_remaining_bytes(
 	if (endoff > ip->i_size)
 		endoff = ip->i_size;
 
-	bp = xfs_buf_get_noaddr(mp->m_sb.sb_blocksize,
-				XFS_IS_REALTIME_INODE(ip) ?
-				mp->m_rtdev_targp : mp->m_ddev_targp);
+	bp = xfs_buf_get_uncached(XFS_IS_REALTIME_INODE(ip) ?
+					mp->m_rtdev_targp : mp->m_ddev_targp,
+				mp->m_sb.sb_blocksize, XBF_DONT_BLOCK);
 	if (!bp)
 		return XFS_ERROR(ENOMEM);
 
@@ -2598,7 +2442,7 @@ xfs_zero_remaining_bytes(
 		offset_fsb = XFS_B_TO_FSBT(mp, offset);
 		nimap = 1;
 		error = xfs_bmapi(NULL, ip, offset_fsb, 1, 0,
-			NULL, 0, &imap, &nimap, NULL, NULL);
+			NULL, 0, &imap, &nimap, NULL);
 		if (error || nimap < 1)
 			break;
 		ASSERT(imap.br_blockcount >= 1);
@@ -2616,7 +2460,7 @@ xfs_zero_remaining_bytes(
 		XFS_BUF_READ(bp);
 		XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock));
 		xfsbdstrat(mp, bp);
-		error = xfs_iowait(bp);
+		error = xfs_buf_iowait(bp);
 		if (error) {
 			xfs_ioerror_alert("xfs_zero_remaining_bytes(read)",
 					  mp, bp, XFS_BUF_ADDR(bp));
@@ -2629,7 +2473,7 @@ xfs_zero_remaining_bytes(
 		XFS_BUF_UNREAD(bp);
 		XFS_BUF_WRITE(bp);
 		xfsbdstrat(mp, bp);
-		error = xfs_iowait(bp);
+		error = xfs_buf_iowait(bp);
 		if (error) {
 			xfs_ioerror_alert("xfs_zero_remaining_bytes(write)",
 					  mp, bp, XFS_BUF_ADDR(bp));
@@ -2661,7 +2505,6 @@ xfs_free_file_space(
 {
 	int			committed;
 	int			done;
-	xfs_off_t		end_dmi_offset;
 	xfs_fileoff_t		endoffset_fsb;
 	int			error;
 	xfs_fsblock_t		firstfsb;
@@ -2680,7 +2523,7 @@ xfs_free_file_space(
 
 	mp = ip->i_mount;
 
-	xfs_itrace_entry(ip);
+	trace_xfs_free_file_space(ip);
 
 	error = xfs_qm_dqattach(ip, 0);
 	if (error)
@@ -2691,19 +2534,7 @@ xfs_free_file_space(
 		return error;
 	rt = XFS_IS_REALTIME_INODE(ip);
 	startoffset_fsb	= XFS_B_TO_FSB(mp, offset);
-	end_dmi_offset = offset + len;
-	endoffset_fsb = XFS_B_TO_FSBT(mp, end_dmi_offset);
-
-	if (offset < ip->i_size && (attr_flags & XFS_ATTR_DMI) == 0 &&
-	    DM_EVENT_ENABLED(ip, DM_EVENT_WRITE)) {
-		if (end_dmi_offset > ip->i_size)
-			end_dmi_offset = ip->i_size;
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip,
-				offset, end_dmi_offset - offset,
-				AT_DELAY_FLAG(attr_flags), NULL);
-		if (error)
-			return error;
-	}
+	endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
 
 	if (attr_flags & XFS_ATTR_NOLOCK)
 		need_iolock = 0;
@@ -2731,7 +2562,7 @@ xfs_free_file_space(
 	if (rt && !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
 		nimap = 1;
 		error = xfs_bmapi(NULL, ip, startoffset_fsb,
-			1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
+			1, 0, NULL, 0, &imap, &nimap, NULL);
 		if (error)
 			goto out_unlock_iolock;
 		ASSERT(nimap == 0 || nimap == 1);
@@ -2746,7 +2577,7 @@ xfs_free_file_space(
 		}
 		nimap = 1;
 		error = xfs_bmapi(NULL, ip, endoffset_fsb - 1,
-			1, 0, NULL, 0, &imap, &nimap, NULL, NULL);
+			1, 0, NULL, 0, &imap, &nimap, NULL);
 		if (error)
 			goto out_unlock_iolock;
 		ASSERT(nimap == 0 || nimap == 1);
@@ -2814,8 +2645,7 @@ xfs_free_file_space(
 		if (error)
 			goto error1;
 
-		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-		xfs_trans_ihold(tp, ip);
+		xfs_trans_ijoin(tp, ip);
 
 		/*
 		 * issue the bunmapi() call to free the blocks
@@ -2823,7 +2653,7 @@ xfs_free_file_space(
 		xfs_bmap_init(&free_list, &firstfsb);
 		error = xfs_bunmapi(tp, ip, startoffset_fsb,
 				  endoffset_fsb - startoffset_fsb,
-				  0, 2, &firstfsb, &free_list, NULL, &done);
+				  0, 2, &firstfsb, &free_list, &done);
 		if (error) {
 			goto error0;
 		}
@@ -2882,8 +2712,7 @@ xfs_change_file_space(
 	xfs_off_t	llen;
 	xfs_trans_t	*tp;
 	struct iattr	iattr;
-
-	xfs_itrace_entry(ip);
+	int		prealloc_type;
 
 	if (!S_ISREG(ip->i_d.di_mode))
 		return XFS_ERROR(EINVAL);
@@ -2926,12 +2755,17 @@ xfs_change_file_space(
 	 * size to be changed.
 	 */
 	setprealloc = clrprealloc = 0;
+	prealloc_type = XFS_BMAPI_PREALLOC;
 
 	switch (cmd) {
+	case XFS_IOC_ZERO_RANGE:
+		prealloc_type |= XFS_BMAPI_CONVERT;
+		xfs_tosspages(ip, startoffset, startoffset + bf->l_len, 0);
+		/* FALLTHRU */
 	case XFS_IOC_RESVSP:
 	case XFS_IOC_RESVSP64:
 		error = xfs_alloc_file_space(ip, startoffset, bf->l_len,
-								1, attr_flags);
+						prealloc_type, attr_flags);
 		if (error)
 			return error;
 		setprealloc = 1;
@@ -2985,8 +2819,7 @@ xfs_change_file_space(
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_ihold(tp, ip);
+	xfs_trans_ijoin(tp, ip);
 
 	if ((attr_flags & XFS_ATTR_DMI) == 0) {
 		ip->i_d.di_mode &= ~S_ISUID;
@@ -3001,7 +2834,7 @@ xfs_change_file_space(
 		if (ip->i_d.di_mode & S_IXGRP)
 			ip->i_d.di_mode &= ~S_ISGID;
 
-		xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+		xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 	}
 	if (setprealloc)
 		ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h
index d8dfa8d0dadd..f6702927eee4 100644
--- a/fs/xfs/xfs_vnodeops.h
+++ b/fs/xfs/xfs_vnodeops.h
@@ -2,7 +2,6 @@
 #define _XFS_VNODEOPS_H 1
 
 struct attrlist_cursor_kern;
-struct cred;
 struct file;
 struct iattr;
 struct inode;
@@ -26,7 +25,7 @@ int xfs_inactive(struct xfs_inode *ip);
 int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
 		struct xfs_inode **ipp, struct xfs_name *ci_name);
 int xfs_create(struct xfs_inode *dp, struct xfs_name *name, mode_t mode,
-		xfs_dev_t rdev, struct xfs_inode **ipp, cred_t *credp);
+		xfs_dev_t rdev, struct xfs_inode **ipp);
 int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
 		struct xfs_inode *ip);
 int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
@@ -34,8 +33,7 @@ int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
 int xfs_readdir(struct xfs_inode	*dp, void *dirent, size_t bufsize,
 		       xfs_off_t *offset, filldir_t filldir);
 int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
-		const char *target_path, mode_t mode, struct xfs_inode **ipp,
-		cred_t *credp);
+		const char *target_path, mode_t mode, struct xfs_inode **ipp);
 int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
 int xfs_change_file_space(struct xfs_inode *ip, int cmd,
 		xfs_flock64_t *bf, xfs_off_t offset, int attr_flags);