diff options
| author | Jan Kara <jack@suse.cz> | 2007-07-15 23:41:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:48 -0700 |
| commit | 32c3773011a9b3522bd4abadc7fad8c27417119f (patch) | |
| tree | c3a07aecbef3cdb66a4126e2822c69166aee1c97 /fs/exportfs | |
| parent | 030703e49d4966bd348660e0fdc2699507efb82b (diff) | |
ext4: fix deadlock in ext4_remount() and orphan list handling
ext4_orphan_add() and ext4_orphan_del() functions lock sb->s_lock with a
transaction started with ext4_mark_recovery_complete() waits for a transaction
holding sb->s_lock, thus leading to a possible deadlock. At the moment we
call ext4_mark_recovery_complete() from ext4_remount() we have done all the
work needed for remounting and thus we are safe to drop sb->s_lock before we
wait for transactions to commit. Note that at this moment we are still
guarded by s_umount lock against other remounts/umounts.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Eric Sandeen <sandeen@sandeen.net>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exportfs')
0 files changed, 0 insertions, 0 deletions