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Date: Thu, 18 Apr 2013 09:44:24 -0700
From: Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH 09/10] mm: vmscan: Check if kswapd should writepage once
 per pgdat scan
Message-ID: <20130418164424.GK2018@cmpxchg.org>
References: <1365710278-6807-1-git-send-email-mgorman@suse.de>
 <1365710278-6807-10-git-send-email-mgorman@suse.de>
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To: Mel Gorman <mgorman@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>, Jiri Slaby <jslaby@suse.cz>, Valdis Kletnieks <Valdis.Kletnieks@vt.edu>, Rik van Riel <riel@redhat.com>, Zlatko Calusic <zcalusic@bitsync.net>, dormando <dormando@rydia.net>, Michal Hocko <mhocko@suse.cz>, Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Linux-MM <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>

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@suse.de>
> Reviewed-by: Michal Hocko <mhocko@suse.cz>
> Acked-by: Rik van Riel <riel@redhat.com>

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

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