linux-kernel - Re: [PATCH 1/3] sched: select_task_rq() should check cpu_active() like select_fallback

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Message-ID: <20151014203532.GX3604@twins.programming.kicks-ass.net>
Date:	Wed, 14 Oct 2015 22:35:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	heiko.carstens@...ibm.com, Tejun Heo <tj@...nel.org>,
	Ingo Molnar <mingo@...nel.org>, Rik van Riel <riel@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] sched: select_task_rq() should check cpu_active()
 like select_fallback_rq()

On Wed, Oct 14, 2015 at 10:05:16PM +0200, Oleg Nesterov wrote:
> Yes, because that damn cpu_active() check doesn't look strictly necessary ;)
> Or I misunderstood.

How about we sit down and have a hard look after Thomas is done
revamping hotplug? I don't want to go pour over hotplug code that is
guaranteed to change.


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