linux-kernel - Re: [PATCH 1/5] oom: select_bad_process: check PF

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Message-ID: <20100602153201.GB5326@barrios-desktop>
Date:	Thu, 3 Jun 2010 00:32:01 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	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>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: [PATCH 1/5] oom: select_bad_process: check PF_KTHREAD instead
 of !mm to skip kthreads

On Mon, May 31, 2010 at 06:33:06PM +0900, KOSAKI Motohiro wrote:
> From: Oleg Nesterov <oleg@...hat.com>
> Subject: oom: select_bad_process: check PF_KTHREAD instead of !mm to skip kthreads
> 
> select_bad_process() thinks a kernel thread can't have ->mm != NULL, this
> is not true due to use_mm().
> 
> Change the code to check PF_KTHREAD.
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>
> Acked-by: David Rientjes <rientjes@...gle.com>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@...il.com>

-- 
Kind regards,
Minchan Kim
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