From: Ming Lei <ming.lei@canonical.com>
Date: Tue, 5 May 2015 11:49:54 +0000 (+0800)
Subject: block: loop: convert to per-device workqueue
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~119^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4aa4c7bbac6c4afdd4adccf90898c1a3685396d;p=pandora-kernel.git

block: loop: convert to per-device workqueue

Documentation/workqueue.txt:
	If there is dependency among multiple work items used
	during memory reclaim, they should be queued to separate
	wq each with WQ_MEM_RECLAIM.

Loop devices can be stacked, so we have to convert to per-device
workqueue. One example is Fedora live CD.

Fixes: b5dd2f6047ca108001328aac0e8588edd15f1778
Cc: stable@vger.kernel.org (v4.0)
Cc: Justin M. Forbes <jforbes@fedoraproject.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

Reading git-diff-tree failed