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authorJan Kara <jack@suse.cz>2011-12-08 21:13:46 +0100
committerWilly Tarreau <w@1wt.eu>2012-10-07 23:37:50 +0200
commitba57e38b830f274138a0349c4aef75d4c75e95a0 (patch)
treef0a885d10864e960723d91fa391625517f6115bb /fs/ext3
parent5816579f8bf88fd799401543877c13fab425dc5e (diff)
ext3: Fix error handling on inode bitmap corruption
commit 1415dd8705394399d59a3df1ab48d149e1e41e77 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'fs/ext3')
-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 b39991285136..108f4fc22857 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -575,8 +575,12 @@ 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++;