From: Alasdair G Kergon <agk@redhat.com>
Date: Thu, 4 Aug 2005 19:53:37 +0000 (-0700)
Subject: [PATCH] dm-raid locking fix
X-Git-Tag: v2.6.13-rc6~56
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48f1f5328267f52a34e61b8b0e6fc55a23c1348a;p=linux-2.6

[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 12031c9d3f..b08df8b9b2 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1230,7 +1230,7 @@ static int __init dm_mirror_init(void)
 	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();