linux-kernel - Re: [PATCH 09/10] mm: vmscan: Check if kswapd should writepage once per pgdat scan

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Message-ID: <20130418164424.GK2018@cmpxchg.org>
Date:	Thu, 18 Apr 2013 09:44:24 -0700
From:	Johannes Weiner <hannes@...xchg.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	Rik van Riel <riel@...hat.com>,
	Zlatko Calusic <zcalusic@...sync.net>,
	dormando <dormando@...ia.net>, Michal Hocko <mhocko@...e.cz>,
	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/10] mm: vmscan: Check if kswapd should writepage once
 per pgdat scan

On Thu, Apr 11, 2013 at 08:57:57PM +0100, Mel Gorman wrote:
> Currently kswapd checks if it should start writepage as it shrinks
> each zone without taking into consideration if the zone is balanced or
> not. This is not wrong as such but it does not make much sense either.
> This patch checks once per pgdat scan if kswapd should be writing pages.
> 
> Signed-off-by: Mel Gorman <mgorman@...e.de>
> Reviewed-by: Michal Hocko <mhocko@...e.cz>
> Acked-by: Rik van Riel <riel@...hat.com>

Acked-by: Johannes Weiner <hannes@...xchg.org>
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