From: Tejun Heo <tj@kernel.org>
Date: Fri, 13 Apr 2012 20:11:29 +0000 (-0700)
Subject: blkcg: make blkg_conf_prep() take @pol and return with queue lock held
X-Git-Tag: v3.5-rc1~42^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da8b066262e12d1d0a3b1e6d3486e500169bf730;p=pandora-kernel.git

blkcg: make blkg_conf_prep() take @pol and return with queue lock held

Add @pol to blkg_conf_prep() and let it return with queue lock held
(to be released by blkg_conf_finish()).  Note that @pol isn't used
yet.

This is to prepare for per-queue policy activation and doesn't cause
any visible difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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