[PATCH] dm-raid locking fix
This code was never designed to handle more than one instance of do_work()
running at once.
Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 12031c9..b08df8b 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1230,7 +1230,7 @@
if (r)
return r;
- _kmirrord_wq = create_workqueue("kmirrord");
+ _kmirrord_wq = create_singlethread_workqueue("kmirrord");
if (!_kmirrord_wq) {
DMERR("couldn't start kmirrord");
dm_dirty_log_exit();