From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <owner-linux-mm@kvack.org>
Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19])
	by kanga.kvack.org (Postfix) with SMTP id 48CC16B01B6
	for <linux-mm@kvack.org>; Mon, 31 May 2010 20:58:53 -0400 (EDT)
Received: from m2.gw.fujitsu.co.jp ([10.0.50.72])
	by fgwmail6.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o510x2iU030891
	for <linux-mm@kvack.org> (envelope-from kamezawa.hiroyu@jp.fujitsu.com);
	Tue, 1 Jun 2010 09:59:02 +0900
Received: from smail (m2 [127.0.0.1])
	by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id C89A045DE4F
	for <linux-mm@kvack.org>; Tue,  1 Jun 2010 09:59:01 +0900 (JST)
Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92])
	by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id A991245DE4E
	for <linux-mm@kvack.org>; Tue,  1 Jun 2010 09:59:01 +0900 (JST)
Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1])
	by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 972D3E08001
	for <linux-mm@kvack.org>; Tue,  1 Jun 2010 09:59:01 +0900 (JST)
Received: from m108.s.css.fujitsu.com (m108.s.css.fujitsu.com [10.249.87.108])
	by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 581841DB803C
	for <linux-mm@kvack.org>; Tue,  1 Jun 2010 09:58:58 +0900 (JST)
Date: Tue, 1 Jun 2010 09:54:46 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH 1/5] oom: select_bad_process: check PF_KTHREAD instead
 of !mm to skip kthreads
Message-Id: <20100601095446.3eefdec2.kamezawa.hiroyu@jp.fujitsu.com>
In-Reply-To: <20100531182526.1843.A69D9226@jp.fujitsu.com>
References: <20100531182526.1843.A69D9226@jp.fujitsu.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
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>, Nick Piggin <npiggin@suse.de>
List-ID: <linux-mm.kvack.org>

On Mon, 31 May 2010 18:33:06 +0900 (JST)
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> 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: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>