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From: Andrew Morton <akpm@linux-foundation.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Marcelo Tosatti <marcelo@kvack.org>,
	Rik van Riel <riel@redhat.com>,
	Daniel Spang <daniel.spang@gmail.com>
Subject: Re: [RFC][PATCH] a bit improvement of ZONE_DMA page reclaim
Date: Thu, 17 Jan 2008 23:21:47 -0800	[thread overview]
Message-ID: <20080117232147.85ae8cab.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080118151822.8FAE.KOSAKI.MOTOHIRO@jp.fujitsu.com>

On Fri, 18 Jan 2008 15:34:33 +0900 KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote:

> Hi
> 
> on X86, ZONE_DMA is very very small.
> It is often no used at all. 

In that case page-reclaim is supposed to set all_unreclaimable and
basically ignores the zone altogether until it looks like something might
have changed.

Is that code not working?  (quite possible).


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  reply	other threads:[~2008-01-18  7:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-18  6:34 KOSAKI Motohiro
2008-01-18  7:21 ` Andrew Morton [this message]
2008-01-18  7:28   ` KOSAKI Motohiro
2008-01-18 11:11     ` KOSAKI Motohiro

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