linux-kernel - Re: [PATCH 2/4] Do not unconditionally treat zones that fail zone

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Message-ID: <4A2EA5D9.6050602@redhat.com>
Date:	Tue, 09 Jun 2009 14:11:37 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Mel Gorman <mel@....ul.ie>
CC:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	yanmin.zhang@...el.com, Wu Fengguang <fengguang.wu@...el.com>,
	linuxram@...ibm.com, linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] Do not unconditionally treat zones that fail zone_reclaim()
 as full

Mel Gorman wrote:

> There is a side-effect to this patch. Currently, if zone_reclaim()
> successfully reclaimed SWAP_CLUSTER_MAX, an allocation attempt would
> go ahead. With this patch applied, zone watermarks are rechecked after
> zone_reclaim() does some work.
> 
> Signed-off-by: Mel Gorman <mel@....ul.ie>
> Reviewed-by: Wu Fengguang <fengguang.wu@...el.com>

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

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