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authorJan Kara <jack@suse.cz>2011-12-08 21:13:46 +0100
committerPaul Gortmaker <paul.gortmaker@windriver.com>2014-02-10 16:11:27 -0500
commit8a6682199359240e66450999a79ae7c66a95bb42 (patch)
tree984b6e37f5ed80f8b0f8d49914f1644e349d1c74 /fs
parent8840b297ba5508ee30452e5b1a876a0dcd09708b (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: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'fs')
-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 0d0e97ed3ff6..fd16a928574c 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++;