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Subject: Re: [PATCH 1/2] cpuset: fix cpuset_cpus_allowed_fallback() don't
 update tsk->rt.nr_cpus_allowed
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Yong Zhang <yong.zhang0@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Oleg Nesterov <oleg@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
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        Li Zefan <lizf@cn.fujitsu.com>, Miao Xie <miaox@cn.fujitsu.com>
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Date: Thu, 19 May 2011 10:45:08 +0200
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On Mon, 2011-05-16 at 21:37 +0800, Yong Zhang wrote:
> 
> But I'm afraid this patch still doesn't help. 
> If I understand your patch correctly, you just put the wake up to CPU_STARTING,
> but it's still before CPU_ONLINE.\

Well, that's the whole point really, CPU_ONLINE is terribly late. But
did you perhaps mean to say its before we mark the cpu online?

> Please check my mail to Paul's in this thread group.

Not sure that made things any clearer.