linux-kernel - Re: [PATCH 06/12] oom: remove warning for in mm-less task __oom_kill

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Message-Id: <20100603153122.7267a556.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 3 Jun 2010 15:31:22 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, Oleg Nesterov <oleg@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: [PATCH 06/12] oom: remove warning for in mm-less task
 __oom_kill_process()

On Thu,  3 Jun 2010 15:23:03 +0900 (JST)
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:

> If the race of mm detach in task exiting vs oom is happen,
> find_lock_task_mm() can be return NULL.
> 
> So, the warning is pointless.
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

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