From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 24 Apr 2013 11:42:56 +0000 (+0530)
Subject: block: queue work on power efficient wq
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~45^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=695588f9454bdbc7c1a2fbb8a6bfdcfba6183348;p=pandora-kernel.git

block: queue work on power efficient wq

Block layer uses workqueues for multiple purposes. There is no real dependency
of scheduling these on the cpu which scheduled them.

On a idle system, it is observed that and idle cpu wakes up many times just to
service this work. It would be better if we can schedule it on a cpu which the
scheduler believes to be the most appropriate one.

This patch replaces normal workqueues with power efficient versions.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

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