linux-kernel - Re: [PATCH 14/14] mm,migration: Allow the migration of PageSwapCache pages

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Message-ID: <s2m28c262361004060837za9d8d7deo7eed2ffe720a3f17@mail.gmail.com>
Date:	Wed, 7 Apr 2010 00:37:50 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Adam Litke <agl@...ibm.com>, Avi Kivity <avi@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 14/14] mm,migration: Allow the migration of PageSwapCache 
	pages

On Sat, Apr 3, 2010 at 1:02 AM, Mel Gorman <mel@....ul.ie> wrote:
> PageAnon pages that are unmapped may or may not have an anon_vma so are
> not currently migrated. However, a swap cache page can be migrated and
> fits this description. This patch identifies page swap caches and allows
> them to be migrated but ensures that no attempt to made to remap the pages
> would would potentially try to access an already freed anon_vma.
>
> Signed-off-by: Mel Gorman <mel@....ul.ie>
Reviewed-by: Minchan Kim <minchan.kim@...il.com>

Thanks for your effort, Mel.

-- 
Kind regards,
Minchan Kim
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