linux-kernel - Re: [PATCH 1/2] Check PageUnevictable in lru_deactivate

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Message-ID: <4DBEC626.7060704@redhat.com>
Date:	Mon, 02 May 2011 10:56:38 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Minchan Kim <minchan.kim@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Ying Han <yinghan@...gle.com>
Subject: Re: [PATCH 1/2] Check PageUnevictable in lru_deactivate_fn

On 05/01/2011 11:03 AM, Minchan Kim wrote:
> The lru_deactivate_fn should not move page which in on unevictable lru
> into inactive list. Otherwise, we can meet BUG when we use isolate_lru_pages
> as __isolate_lru_page could return -EINVAL.
> It's really BUG and let's fix it.
>
> Reported-by: Ying Han<yinghan@...gle.com>
> Tested-by: Ying Han<yinghan@...gle.com>
> Signed-off-by: Minchan Kim<minchan.kim@...il.com>

Reviewed-by: Rik van Riel<riel@...hat.com>

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