From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 15 Nov 2013 21:12:20 +0000 (-0500)
Subject: dm delay: fix a possible deadlock due to shared workqueue
X-Git-Tag: v3.2.54~115
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40715dd3c93ca914d749d56ad3e3df0748e28f48;p=pandora-kernel.git

dm delay: fix a possible deadlock due to shared workqueue

commit 718822c1c112dc99e0c72c8968ee1db9d9d910f0 upstream.

The dm-delay target uses a shared workqueue for multiple instances.  This
can cause deadlock if two or more dm-delay targets are stacked on the top
of each other.

This patch changes dm-delay to use a per-instance workqueue.


Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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