From: Tejun Heo <tj@kernel.org>
Date: Thu, 13 Jan 2011 19:59:58 +0000 (+0000)
Subject: dm: use non reentrant workqueues if equivalent
X-Git-Tag: v2.6.38-rc1~221^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c4376de98719d2768dd919553843de34bb094a6;p=pandora-kernel.git

dm: use non reentrant workqueues if equivalent

kmirrord_wq, kcopyd_work and md->wq are created per dm instance and
serve only a single work item from the dm instance, so non-reentrant
workqueues would provide the same ordering guarantees as ordered ones
while allowing CPU affinity and use of the workqueues for other
purposes.  Switch them to non-reentrant workqueues.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

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