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Diffstat (limited to 'fs/jffs2/fs.c')
-rw-r--r--fs/jffs2/fs.c104
1 files changed, 48 insertions, 56 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 5687c3f42002..543420665c5b 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: fs.c,v 1.56 2005/07/06 12:13:09 dwmw2 Exp $
+ * $Id: fs.c,v 1.66 2005/09/27 13:17:29 dedekind Exp $
*
*/
@@ -40,7 +40,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
int ret;
D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
ret = inode_change_ok(inode, iattr);
- if (ret)
+ if (ret)
return ret;
/* Special cases - we don't want more than one data node
@@ -73,8 +73,9 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
kfree(mdata);
return -ENOMEM;
}
-
- ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen, ALLOC_NORMAL);
+
+ ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
if (S_ISLNK(inode->i_mode & S_IFMT))
@@ -83,7 +84,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
}
down(&f->sem);
ivalid = iattr->ia_valid;
-
+
ri->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
ri->nodetype = cpu_to_je16(JFFS2_NODETYPE_INODE);
ri->totlen = cpu_to_je32(sizeof(*ri) + mdatalen);
@@ -99,7 +100,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
if (iattr->ia_mode & S_ISGID &&
!in_group_p(je16_to_cpu(ri->gid)) && !capable(CAP_FSETID))
ri->mode = cpu_to_jemode(iattr->ia_mode & ~S_ISGID);
- else
+ else
ri->mode = cpu_to_jemode(iattr->ia_mode);
else
ri->mode = cpu_to_jemode(inode->i_mode);
@@ -128,7 +129,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, phys_ofs, ALLOC_NORMAL);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
-
+
if (IS_ERR(new_metadata)) {
jffs2_complete_reservation(c);
jffs2_free_raw_inode(ri);
@@ -147,7 +148,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
old_metadata = f->metadata;
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size)
- jffs2_truncate_fraglist (c, &f->fragtree, iattr->ia_size);
+ jffs2_truncate_fragtree (c, &f->fragtree, iattr->ia_size);
if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
jffs2_add_full_dnode_to_inode(c, f, new_metadata);
@@ -166,7 +167,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
jffs2_complete_reservation(c);
/* We have to do the vmtruncate() without f->sem held, since
- some pages may be locked and waiting for it in readpage().
+ some pages may be locked and waiting for it in readpage().
We are protected from a simultaneous write() extending i_size
back past iattr->ia_size, because do_truncate() holds the
generic inode semaphore. */
@@ -194,31 +195,27 @@ int jffs2_statfs(struct super_block *sb, struct kstatfs *buf)
buf->f_namelen = JFFS2_MAX_NAME_LEN;
spin_lock(&c->erase_completion_lock);
-
avail = c->dirty_size + c->free_size;
if (avail > c->sector_size * c->resv_blocks_write)
avail -= c->sector_size * c->resv_blocks_write;
else
avail = 0;
+ spin_unlock(&c->erase_completion_lock);
buf->f_bavail = buf->f_bfree = avail >> PAGE_SHIFT;
- D2(jffs2_dump_block_lists(c));
-
- spin_unlock(&c->erase_completion_lock);
-
return 0;
}
void jffs2_clear_inode (struct inode *inode)
{
- /* We can forget about this inode for now - drop all
+ /* We can forget about this inode for now - drop all
* the nodelists associated with it, etc.
*/
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-
+
D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode));
jffs2_do_clear_inode(c, f);
@@ -237,7 +234,7 @@ void jffs2_read_inode (struct inode *inode)
c = JFFS2_SB_INFO(inode->i_sb);
jffs2_init_inode_info(f);
-
+
ret = jffs2_do_read_inode(c, f, inode->i_ino, &latest_node);
if (ret) {
@@ -257,14 +254,14 @@ void jffs2_read_inode (struct inode *inode)
inode->i_blksize = PAGE_SIZE;
inode->i_blocks = (inode->i_size + 511) >> 9;
-
+
switch (inode->i_mode & S_IFMT) {
jint16_t rdev;
case S_IFLNK:
inode->i_op = &jffs2_symlink_inode_operations;
break;
-
+
case S_IFDIR:
{
struct jffs2_full_dirent *fd;
@@ -301,7 +298,7 @@ void jffs2_read_inode (struct inode *inode)
jffs2_do_clear_inode(c, f);
make_bad_inode(inode);
return;
- }
+ }
case S_IFSOCK:
case S_IFIFO:
@@ -357,11 +354,11 @@ int jffs2_remount_fs (struct super_block *sb, int *flags, char *data)
down(&c->alloc_sem);
jffs2_flush_wbuf_pad(c);
up(&c->alloc_sem);
- }
+ }
if (!(*flags & MS_RDONLY))
jffs2_start_garbage_collect_thread(c);
-
+
*flags |= MS_NOATIME;
return 0;
@@ -395,9 +392,9 @@ struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_i
D1(printk(KERN_DEBUG "jffs2_new_inode(): dir_i %ld, mode 0x%x\n", dir_i->i_ino, mode));
c = JFFS2_SB_INFO(sb);
-
+
inode = new_inode(sb);
-
+
if (!inode)
return ERR_PTR(-ENOMEM);
@@ -461,40 +458,24 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
#endif
c->flash_size = c->mtd->size;
-
- /*
- * Check, if we have to concatenate physical blocks to larger virtual blocks
- * to reduce the memorysize for c->blocks. (kmalloc allows max. 128K allocation)
- */
- c->sector_size = c->mtd->erasesize;
+ c->sector_size = c->mtd->erasesize;
blocks = c->flash_size / c->sector_size;
- if (!(c->mtd->flags & MTD_NO_VIRTBLOCKS)) {
- while ((blocks * sizeof (struct jffs2_eraseblock)) > (128 * 1024)) {
- blocks >>= 1;
- c->sector_size <<= 1;
- }
- }
/*
* Size alignment check
*/
if ((c->sector_size * blocks) != c->flash_size) {
- c->flash_size = c->sector_size * blocks;
+ c->flash_size = c->sector_size * blocks;
printk(KERN_INFO "jffs2: Flash size not aligned to erasesize, reducing to %dKiB\n",
c->flash_size / 1024);
}
- if (c->sector_size != c->mtd->erasesize)
- printk(KERN_INFO "jffs2: Erase block size too small (%dKiB). Using virtual blocks size (%dKiB) instead\n",
- c->mtd->erasesize / 1024, c->sector_size / 1024);
-
if (c->flash_size < 5*c->sector_size) {
printk(KERN_ERR "jffs2: Too few erase blocks (%d)\n", c->flash_size / c->sector_size);
return -EINVAL;
}
c->cleanmarker_size = sizeof(struct jffs2_unknown_node);
- /* Joern -- stick alignment for weird 8-byte-page flash here */
/* NAND (or other bizarre) flash... do setup accordingly */
ret = jffs2_flash_setup(c);
@@ -517,7 +498,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
root_i = iget(sb, 1);
if (is_bad_inode(root_i)) {
D1(printk(KERN_WARNING "get root inode failed\n"));
- goto out_nodes;
+ goto out_root_i;
}
D1(printk(KERN_DEBUG "jffs2_do_fill_super(): d_alloc_root()\n"));
@@ -535,10 +516,9 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
out_root_i:
iput(root_i);
- out_nodes:
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
- if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
+ if (jffs2_blocks_use_vmalloc(c))
vfree(c->blocks);
else
kfree(c->blocks);
@@ -563,16 +543,16 @@ struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
struct jffs2_inode_cache *ic;
if (!nlink) {
/* The inode has zero nlink but its nodes weren't yet marked
- obsolete. This has to be because we're still waiting for
+ obsolete. This has to be because we're still waiting for
the final (close() and) iput() to happen.
- There's a possibility that the final iput() could have
+ There's a possibility that the final iput() could have
happened while we were contemplating. In order to ensure
that we don't cause a new read_inode() (which would fail)
for the inode in question, we use ilookup() in this case
instead of iget().
- The nlink can't _become_ zero at this point because we're
+ The nlink can't _become_ zero at this point because we're
holding the alloc_sem, and jffs2_do_unlink() would also
need that while decrementing nlink on any inode.
*/
@@ -619,19 +599,19 @@ struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
return JFFS2_INODE_INFO(inode);
}
-unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
- struct jffs2_inode_info *f,
+unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
+ struct jffs2_inode_info *f,
unsigned long offset,
unsigned long *priv)
{
struct inode *inode = OFNI_EDONI_2SFFJ(f);
struct page *pg;
- pg = read_cache_page(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
+ pg = read_cache_page(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
(void *)jffs2_do_readpage_unlock, inode);
if (IS_ERR(pg))
return (void *)pg;
-
+
*priv = (unsigned long)pg;
return kmap(pg);
}
@@ -648,7 +628,7 @@ void jffs2_gc_release_page(struct jffs2_sb_info *c,
static int jffs2_flash_setup(struct jffs2_sb_info *c) {
int ret = 0;
-
+
if (jffs2_cleanmarker_oob(c)) {
/* NAND flash... do setup accordingly */
ret = jffs2_nand_flash_setup(c);
@@ -662,14 +642,21 @@ static int jffs2_flash_setup(struct jffs2_sb_info *c) {
if (ret)
return ret;
}
-
+
/* and Dataflash */
if (jffs2_dataflash(c)) {
ret = jffs2_dataflash_setup(c);
if (ret)
return ret;
}
-
+
+ /* and Intel "Sibley" flash */
+ if (jffs2_nor_wbuf_flash(c)) {
+ ret = jffs2_nor_wbuf_flash_setup(c);
+ if (ret)
+ return ret;
+ }
+
return ret;
}
@@ -683,9 +670,14 @@ void jffs2_flash_cleanup(struct jffs2_sb_info *c) {
if (jffs2_nor_ecc(c)) {
jffs2_nor_ecc_flash_cleanup(c);
}
-
+
/* and DataFlash */
if (jffs2_dataflash(c)) {
jffs2_dataflash_cleanup(c);
}
+
+ /* and Intel "Sibley" flash */
+ if (jffs2_nor_wbuf_flash(c)) {
+ jffs2_nor_wbuf_flash_cleanup(c);
+ }
}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-26 19:39:56 +0000