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Date: Thu, 3 Jun 2010 00:32:01 +0900
From: Minchan Kim <minchan.kim@gmail.com>
Subject: Re: [PATCH 1/5] oom: select_bad_process: check PF_KTHREAD instead
 of !mm to skip kthreads
Message-ID: <20100602153201.GB5326@barrios-desktop>
References: <20100531182526.1843.A69D9226@jp.fujitsu.com>
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In-Reply-To: <20100531182526.1843.A69D9226@jp.fujitsu.com>
Sender: owner-linux-mm@kvack.org
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, Oleg Nesterov <oleg@redhat.com>, David Rientjes <rientjes@google.com>, Andrew Morton <akpm@linux-foundation.org>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Nick Piggin <npiggin@suse.de>
List-ID: <linux-mm.kvack.org>

On Mon, May 31, 2010 at 06:33:06PM +0900, KOSAKI Motohiro wrote:
> From: Oleg Nesterov <oleg@redhat.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@redhat.com>
> Acked-by: David Rientjes <rientjes@google.com>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>

-- 
Kind regards,
Minchan Kim

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