linux-kernel - Re: [PATCH 02/12] cfq: don't register propio policy if !CONFIG_CFQ_GROUP

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Message-ID: <20120119101132.GB2649@redhat.com>
Date:	Thu, 19 Jan 2012 05:11:32 -0500
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	axboe@...nel.dk, ctalbott@...gle.com, rni@...gle.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/12] cfq: don't register propio policy if
 !CONFIG_CFQ_GROUP_IOSCHED

On Wed, Jan 18, 2012 at 05:11:20PM -0800, Tejun Heo wrote:
> 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@...nel.org>
> Cc: Vivek Goyal <vgoyal@...hat.com>

Thanks. Looks good to me.

Acked-by: Vivek Goyal <vgoyal@...hat.com>

Vivek

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