linux-kernel - Re: [PATCH 1/2] sched: recover SD_WAKE_AFFINE in select_task_rq

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Message-ID: <1343377963.32120.30.camel@twins>
Date:	Fri, 27 Jul 2012 10:32:43 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alex Shi <alex.shi@...el.com>
Cc:	Mike Galbraith <efault@....de>, mingo@...hat.com,
	linux-kernel@...r.kernel.org, suresh.b.siddha@...el.com
Subject: Re: [PATCH 1/2] sched: recover SD_WAKE_AFFINE in
 select_task_rq_fair and code clean up

On Fri, 2012-07-27 at 09:47 +0800, Alex Shi wrote:

> From 610515185d8a98c14c7c339c25381bc96cd99d93 Mon Sep 17 00:00:00 2001
> From: Alex Shi <alex.shi@...el.com>
> Date: Thu, 26 Jul 2012 08:55:34 +0800
> Subject: [PATCH 1/3] sched: recover SD_WAKE_AFFINE in select_task_rq_fair and
>  code clean up
> 
> Since power saving code was removed from sched now, the implement
> code is out of service in this function, and even pollute other logical.
> like, 'want_sd' never has chance to be set '0', that remove the effect
> of SD_WAKE_AFFINE here.
> 
> So, clean up the obsolete code and some other unnecessary code.
> 
> Signed-off-by: Alex Shi <alex.shi@...el.com>

I think your code leaves an unused definition of SD_PREFER_LOCAL around.
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