xfs: convert bp->b_bn references to xfs_buf_daddr()

Stop directly referencing b_bn in code outside the buffer cache, as
b_bn is supposed to be used only as an internal cache index.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

1 files changed, 13 insertions, 12 deletions

diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 16a71465cb0b..298395481713 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -70,7 +70,7 @@ __xfs_btree_check_lblock(
 		if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (block->bb_u.l.bb_blkno !=
-		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+		    cpu_to_be64(bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL))
 			return __this_address;
 		if (block->bb_u.l.bb_pad != cpu_to_be32(0))
 			return __this_address;
@@ -135,7 +135,7 @@ __xfs_btree_check_sblock(
 		if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (block->bb_u.s.bb_blkno !=
-		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+		    cpu_to_be64(bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL))
 			return __this_address;
 	}
 
@@ -1131,7 +1131,7 @@ xfs_btree_init_block(
 	__u16		numrecs,
 	__u64		owner)
 {
-	xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
+	xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), xfs_buf_daddr(bp),
 				 btnum, level, numrecs, owner, 0);
 }
 
@@ -1155,9 +1155,9 @@ xfs_btree_init_block_cur(
 	else
 		owner = cur->bc_ag.pag->pag_agno;
 
-	xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
-				 cur->bc_btnum, level, numrecs,
-				 owner, cur->bc_flags);
+	xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp),
+				xfs_buf_daddr(bp), cur->bc_btnum, level,
+				numrecs, owner, cur->bc_flags);
 }
 
 /*
@@ -2923,10 +2923,11 @@ xfs_btree_new_iroot(
 	 */
 	memcpy(cblock, block, xfs_btree_block_len(cur));
 	if (cur->bc_flags & XFS_BTREE_CRC_BLOCKS) {
+		__be64 bno = cpu_to_be64(xfs_buf_daddr(cbp));
 		if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
-			cblock->bb_u.l.bb_blkno = cpu_to_be64(cbp->b_bn);
+			cblock->bb_u.l.bb_blkno = bno;
 		else
-			cblock->bb_u.s.bb_blkno = cpu_to_be64(cbp->b_bn);
+			cblock->bb_u.s.bb_blkno = bno;
 	}
 
 	be16_add_cpu(&block->bb_level, 1);
@@ -3225,7 +3226,7 @@ xfs_btree_insrec(
 
 	/* Get pointers to the btree buffer and block. */
 	block = xfs_btree_get_block(cur, level, &bp);
-	old_bn = bp ? bp->b_bn : XFS_BUF_DADDR_NULL;
+	old_bn = bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL;
 	numrecs = xfs_btree_get_numrecs(block);
 
 #ifdef DEBUG
@@ -3341,7 +3342,7 @@ xfs_btree_insrec(
 	 * some records into the new tree block), so use the regular key
 	 * update mechanism.
 	 */
-	if (bp && bp->b_bn != old_bn) {
+	if (bp && xfs_buf_daddr(bp) != old_bn) {
 		xfs_btree_get_keys(cur, block, lkey);
 	} else if (xfs_btree_needs_key_update(cur, optr)) {
 		error = xfs_btree_update_keys(cur, level);
@@ -4422,7 +4423,7 @@ xfs_btree_lblock_v5hdr_verify(
 		return __this_address;
 	if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
-	if (block->bb_u.l.bb_blkno != cpu_to_be64(bp->b_bn))
+	if (block->bb_u.l.bb_blkno != cpu_to_be64(xfs_buf_daddr(bp)))
 		return __this_address;
 	if (owner != XFS_RMAP_OWN_UNKNOWN &&
 	    be64_to_cpu(block->bb_u.l.bb_owner) != owner)
@@ -4472,7 +4473,7 @@ xfs_btree_sblock_v5hdr_verify(
 		return __this_address;
 	if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
-	if (block->bb_u.s.bb_blkno != cpu_to_be64(bp->b_bn))
+	if (block->bb_u.s.bb_blkno != cpu_to_be64(xfs_buf_daddr(bp)))
 		return __this_address;
 	if (pag && be32_to_cpu(block->bb_u.s.bb_owner) != pag->pag_agno)
 		return __this_address;