linux-kernel - Re: [patch 1/2] mm: vmscan: fix force-scanning small targets without swap

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Message-ID: <CAEwNFnBAHTTqJnzjpB9eAqUu=3SdP5r+DKJ6+kzcwxhc9fH-6g@mail.gmail.com>
Date:	Fri, 12 Aug 2011 08:16:15 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Johannes Weiner <jweiner@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>, Ying Han <yinghan@...gle.com>,
	Balbir Singh <bsingharora@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Mel Gorman <mel@....ul.ie>
Subject: Re: [patch 1/2] mm: vmscan: fix force-scanning small targets without swap

On Fri, Aug 12, 2011 at 5:31 AM, Johannes Weiner <jweiner@...hat.com> wrote:
> Without swap, anonymous pages are not scanned.  As such, they should
> not count when considering force-scanning a small target if there is
> no swap.
>
> Otherwise, targets are not force-scanned even when their effective
> scan number is zero and the other conditions--kswapd/memcg--apply.
>
> Signed-off-by: Johannes Weiner <jweiner@...hat.com>
Reviewed-by: Minchan Kim <minchan.kim@...il.com>

Good catch!


-- 
Kind regards,
Minchan Kim
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