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authorJan Kara <jack@suse.cz>2011-12-08 21:13:46 +0100
committerJan Kara <jack@suse.cz>2012-01-09 13:52:07 +0100
commit1415dd8705394399d59a3df1ab48d149e1e41e77 (patch)
treefb98d05d5fa83202d7b4bead058826366fc2592e /fs/ext3/ialloc.c
parentext3: replace ll_rw_block with other functions (diff)
downloadlinux-1415dd8705394399d59a3df1ab48d149e1e41e77.tar.xz
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ext3: Fix error handling on inode bitmap corruption
When insert_inode_locked() fails in ext3_new_inode() it most likely means inode bitmap got corrupted and we allocated again inode which is already in use. Also doing unlock_new_inode() during error recovery is wrong since inode does not have I_NEW set. Fix the problem by jumping to fail: (instead of fail_drop:) which declares filesystem error and does not call unlock_new_inode(). Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext3/ialloc.c')
-rw-r--r--fs/ext3/ialloc.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 5c866e06e7ab..adae962ee957 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -525,8 +525,12 @@ got:
if (IS_DIRSYNC(inode))
handle->h_sync = 1;
if (insert_inode_locked(inode) < 0) {
- err = -EINVAL;
- goto fail_drop;
+ /*
+ * Likely a bitmap corruption causing inode to be allocated
+ * twice.
+ */
+ err = -EIO;
+ goto fail;
}
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;