diff options
| author | Jan Kara <jack@suse.cz> | 2011-12-08 21:13:46 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2012-01-09 13:52:07 +0100 |
| commit | 1415dd8705394399d59a3df1ab48d149e1e41e77 (patch) | |
| tree | fb98d05d5fa83202d7b4bead058826366fc2592e /fs/ext3/ialloc.c | |
| parent | d03e1292c46721f60830c5d2e334966472002ed0 (diff) | |
| download | lwn-1415dd8705394399d59a3df1ab48d149e1e41e77.tar.gz lwn-1415dd8705394399d59a3df1ab48d149e1e41e77.zip | |
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.c | 8 |
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++; |