linux-kernel - Re: [PATCH 7/8] Use TASK_KILLABLE instead TASK

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Message-Id: <20091215085226.5f07b470.minchan.kim@barrios-desktop>
Date:	Tue, 15 Dec 2009 08:52:26 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Rik van Riel <riel@...hat.com>, lwoodman@...hat.com,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, minchan.kim@...il.com
Subject: Re: [PATCH 7/8] Use TASK_KILLABLE instead TASK_UNINTERRUPTIBLE

On Mon, 14 Dec 2009 21:32:18 +0900 (JST)
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:

> When fork bomb invoke OOM Killer, almost task might start to reclaim and
> sleep on shrink_zone_begin(). if we use TASK_UNINTERRUPTIBLE, OOM killer
> can't kill such task. it mean we never recover from fork bomb.
> 
> This patch fixes it.
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>

I doubt wake_up_all, too. I think it's typo.
Otherwise, Looks good to me. 

Reviewed-by: Minchan Kim <minchan.kim@...il.com>

-- 
Kind regards,
Minchan Kim
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