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From: Roland McGrath <roland@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
       hidehiro.kawai.ez@hitachi.com, linux-kernel@vger.kernel.org,
       yumiko.sugita.yf@hitachi.com, satoshi.oshima.fk@hitachi.com
Subject: Re: [PATCH] coredump_filter: enable to change the default filter
In-Reply-To: Andrew Morton's message of  Thursday, 11 December 2008 15:10:03 -0800 <20081211151003.00572e04.akpm@linux-foundation.org>
References: <4940B426.6040509@hitachi.com>
	<20081211154349.5000.KOSAKI.MOTOHIRO@jp.fujitsu.com>
	<20081211151003.00572e04.akpm@linux-foundation.org>
Message-Id: <20081211232205.ED188FC3AB@magilla.sf.frob.com>
Date: Thu, 11 Dec 2008 15:22:05 -0800 (PST)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 597
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> Or does the patch change other behaviour?  Say, when mm_init() is
> called by a kernel thread (current->mm==NULL)?  call_usermodehelper(),
> for example?
> 
> If so, then setting init's filter doesn't cover that case.

Hmm, probably for the kernel thread case mm_init should use
task_active_pid_ns(current)->child_reaper->mm->flags.


Thanks,
Roland
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