linux-kernel - Re: [PATCH] sched/fair: fix find_idlest

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Message-ID: <20141215165908.GC29390@twins.programming.kicks-ass.net>
Date:	Mon, 15 Dec 2014 17:59:08 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	jun.zhang@...el.com
Cc:	mingo@...hat.com, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, Chuansheng Liu <chuansheng.liu@...el.com>,
	Changcheng Liu <changcheng.liu@...el.com>,
	Hillf Danton <hillf.zj@...baba-inc.com>,
	Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH] sched/fair: fix find_idlest_cpu return -1

On Fri, Dec 05, 2014 at 01:58:01PM +0800, jun.zhang@...el.com wrote:
> From: zhang jun <jun.zhang@...el.com>
> 
> find_idlest_cpu return -1 is not reasonable, set default value to this_cpu.

This fails to explain why.

> Signed-off-by: zhang jun <jun.zhang@...el.com>
> Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
> Signed-off-by: Changcheng Liu <changcheng.liu@...el.com>

This is an invalid SoB chain.

> Cc: Hillf Danton <hillf.zj@...baba-inc.com>
> Cc: Vincent Guittot <vincent.guittot@...aro.org>
> Cc: <stable@...r.kernel.org> # 3.14.25
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