linux-kernel - Re: [PATCH 05/10] vmscan: Synchrounous lumpy reclaim use lock_page() instead trylock

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Message-ID: <20100908112835.GB7597@localhost>
Date:	Wed, 8 Sep 2010 19:28:35 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	Linux Kernel List <linux-kernel@...r.kernel.org>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Dave Chinner <david@...morbit.com>,
	Chris Mason <chris.mason@...cle.com>,
	Christoph Hellwig <hch@....de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 05/10] vmscan: Synchrounous lumpy reclaim use
 lock_page() instead trylock_page()

On Mon, Sep 06, 2010 at 06:47:28PM +0800, Mel Gorman wrote:
> From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> 
> With synchrounous lumpy reclaim, there is no reason to give up to reclaim
> pages even if page is locked. This patch uses lock_page() instead of
> trylock_page() in this case.
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Signed-off-by: Mel Gorman <mel@....ul.ie>

Acked-by: Wu Fengguang <fengguang.wu@...el.com>
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