linux-kernel - Re: [PATCH] sched/numa: fix unsafe get_task_struct() in task_numa

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Message-ID: <1413795392.19914.14.camel@tkhai>
Date:	Mon, 20 Oct 2014 12:56:32 +0400
From:	Kirill Tkhai <ktkhai@...allels.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Kirill Tkhai <tkhai@...dex.ru>, Oleg Nesterov <oleg@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Vladimir Davydov <vdavydov@...allels.com>
Subject: Re: [PATCH] sched/numa: fix unsafe get_task_struct() in
 task_numa_assign()

В Вс, 19/10/2014 в 23:38 +0200, Peter Zijlstra пишет:
> On Sun, Oct 19, 2014 at 03:13:31AM +0400, Kirill Tkhai wrote:
> 
> I'm too tired for all this, but:
> 
> > +	smp_rmb(); /* Pairs with dst_rq->lock unlocking which implies smp_wmb */
> 
> RELEASE does not imply a WMB.

Thanks, please see, I've sent new version.

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