linux-kernel - Re: [PATCH 4/4] zone_reclaim

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Message-ID: <20090518090950.GA10439@localhost>
Date:	Mon, 18 May 2009 17:09:50 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [PATCH 4/4] zone_reclaim_mode is always 0 by default

On Wed, May 13, 2009 at 12:08:12PM +0900, KOSAKI Motohiro wrote:
> Index: b/mm/page_alloc.c
> ===================================================================
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -2494,13 +2494,6 @@ static void build_zonelists(pg_data_t *p
>  		int distance = node_distance(local_node, node);
>  
>  		/*
> -		 * If another node is sufficiently far away then it is better
> -		 * to reclaim pages in a zone before going off node.
> -		 */
> -		if (distance > RECLAIM_DISTANCE)
> -			zone_reclaim_mode = 1;
> -

Also remove the RECLAIM_DISTANCE definitions in
include/linux/topology.h and arch/ia64/include/asm/topology.h?
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