linux-kernel - Re: [RFC][PATCH 2/3] Freezer: Take kernel

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Message-ID: <20070226124538.GF3386@elf.ucw.cz>
Date:	Mon, 26 Feb 2007 13:45:38 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...l.org>,
	Oleg Nesterov <oleg@...sign.ru>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Aneesh Kumar <aneesh.kumar@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>
Subject: Re: [RFC][PATCH 2/3] Freezer: Take kernel_execve into consideration

On Mon 2007-02-26 11:49:09, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@...k.pl>
> 
> Kernel threads can become userland processes by calling kernel_execve().  In
> particular, this may happen right after try_to_freeze_tasks(FREEZER_USER_SPACE)
> has returned, so try_to_freeze_tasks() needs to take userspace processes
> into consideration even if it is called with FREEZER_KERNEL_THREADS.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

ACK.
								Pavel

-- 
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