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| author | Jan Kara <jack@suse.cz> | 2007-07-15 23:41:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:47 -0700 |
| commit | 030703e49d4966bd348660e0fdc2699507efb82b (patch) | |
| tree | 7ff200c2834960fc70b2683007b7d13cdb7f761e /fs/ext4 | |
| parent | 8b3b295502444340dd0701855ac422fbf32e161d (diff) | |
| download | op-kernel-dev-030703e49d4966bd348660e0fdc2699507efb82b.zip op-kernel-dev-030703e49d4966bd348660e0fdc2699507efb82b.tar.gz | |
ext3: fix deadlock in ext3_remount() and orphan list handling
ext3_orphan_add() and ext3_orphan_del() functions lock sb->s_lock with a
transaction started with ext3_mark_recovery_complete() waits for a transaction
holding sb->s_lock, thus leading to a possible deadlock. At the moment we
call ext3_mark_recovery_complete() from ext3_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/ext4')
0 files changed, 0 insertions, 0 deletions
