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Diffstat (limited to 'fs/ext3/ialloc.c')
-rw-r--r--fs/ext3/ialloc.c70
1 files changed, 39 insertions, 31 deletions
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 1bc8cd89c51d..4f4020c54683 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -164,11 +164,9 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
if (gdp) {
spin_lock(sb_bgl_lock(sbi, block_group));
- gdp->bg_free_inodes_count = cpu_to_le16(
- le16_to_cpu(gdp->bg_free_inodes_count) + 1);
+ le16_add_cpu(&gdp->bg_free_inodes_count, 1);
if (is_directory)
- gdp->bg_used_dirs_count = cpu_to_le16(
- le16_to_cpu(gdp->bg_used_dirs_count) - 1);
+ le16_add_cpu(&gdp->bg_used_dirs_count, -1);
spin_unlock(sb_bgl_lock(sbi, block_group));
percpu_counter_inc(&sbi->s_freeinodes_counter);
if (is_directory)
@@ -527,11 +525,9 @@ got:
err = ext3_journal_get_write_access(handle, bh2);
if (err) goto fail;
spin_lock(sb_bgl_lock(sbi, group));
- gdp->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
+ le16_add_cpu(&gdp->bg_free_inodes_count, -1);
if (S_ISDIR(mode)) {
- gdp->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
+ le16_add_cpu(&gdp->bg_used_dirs_count, 1);
}
spin_unlock(sb_bgl_lock(sbi, group));
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
@@ -642,14 +638,15 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
unsigned long block_group;
int bit;
- struct buffer_head *bitmap_bh = NULL;
+ struct buffer_head *bitmap_bh;
struct inode *inode = NULL;
+ long err = -EIO;
/* Error cases - e2fsck has already cleaned up for us */
if (ino > max_ino) {
ext3_warning(sb, __FUNCTION__,
"bad orphan ino %lu! e2fsck was run?", ino);
- goto out;
+ goto error;
}
block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
@@ -658,38 +655,49 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
if (!bitmap_bh) {
ext3_warning(sb, __FUNCTION__,
"inode bitmap error for orphan %lu", ino);
- goto out;
+ goto error;
}
/* Having the inode bit set should be a 100% indicator that this
* is a valid orphan (no e2fsck run on fs). Orphans also include
* inodes that were being truncated, so we can't check i_nlink==0.
*/
- if (!ext3_test_bit(bit, bitmap_bh->b_data) ||
- !(inode = iget(sb, ino)) || is_bad_inode(inode) ||
- NEXT_ORPHAN(inode) > max_ino) {
- ext3_warning(sb, __FUNCTION__,
- "bad orphan inode %lu! e2fsck was run?", ino);
- printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
- bit, (unsigned long long)bitmap_bh->b_blocknr,
- ext3_test_bit(bit, bitmap_bh->b_data));
- printk(KERN_NOTICE "inode=%p\n", inode);
- if (inode) {
- printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
- is_bad_inode(inode));
- printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
- NEXT_ORPHAN(inode));
- printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
- }
+ if (!ext3_test_bit(bit, bitmap_bh->b_data))
+ goto bad_orphan;
+
+ inode = ext3_iget(sb, ino);
+ if (IS_ERR(inode))
+ goto iget_failed;
+
+ if (NEXT_ORPHAN(inode) > max_ino)
+ goto bad_orphan;
+ brelse(bitmap_bh);
+ return inode;
+
+iget_failed:
+ err = PTR_ERR(inode);
+ inode = NULL;
+bad_orphan:
+ ext3_warning(sb, __FUNCTION__,
+ "bad orphan inode %lu! e2fsck was run?", ino);
+ printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
+ bit, (unsigned long long)bitmap_bh->b_blocknr,
+ ext3_test_bit(bit, bitmap_bh->b_data));
+ printk(KERN_NOTICE "inode=%p\n", inode);
+ if (inode) {
+ printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
+ is_bad_inode(inode));
+ printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
+ NEXT_ORPHAN(inode));
+ printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
/* Avoid freeing blocks if we got a bad deleted inode */
- if (inode && inode->i_nlink == 0)
+ if (inode->i_nlink == 0)
inode->i_blocks = 0;
iput(inode);
- inode = NULL;
}
-out:
brelse(bitmap_bh);
- return inode;
+error:
+ return ERR_PTR(err);
}
unsigned long ext3_count_free_inodes (struct super_block * sb)