From: Tejun Heo <tj@kernel.org>
Date: Mon, 5 Mar 2012 21:14:55 +0000 (-0800)
Subject: cfq: don't register propio policy if !CONFIG_CFQ_GROUP_IOSCHED
X-Git-Tag: v3.5-rc1~42^2~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b95ada558c9e69c69ffd6950eb644ee8a3dba18f;p=pandora-kernel.git

cfq: don't register propio policy if !CONFIG_CFQ_GROUP_IOSCHED

cfq has been registering zeroed blkio_poilcy_cfq if CFQ_GROUP_IOSCHED
is disabled.  This fortunately doesn't collide with blk-throtl as
BLKIO_POLICY_PROP is zero but is unnecessary and risky.  Just don't
register it if not enabled.

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

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