linux-kernel - Re: [PATCH 05/12] Memory compaction core

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Date:	Wed, 17 Feb 2010 10:45:46 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Mel Gorman <mel@....ul.ie>
CC:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	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>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 05/12] Memory compaction core

On 02/17/2010 08:29 AM, Mel Gorman wrote:

> Fix concerns from Kosaki Motohiro (merge with compaction core)
>
> o Fewer pages are isolated. Hence, cc->migrate_pfn in
>    isolate_migratepages() is updated slightly differently and the debug
>    checks change
> o LRU lists are no longer rotated
> o NR_ISOLATED_* is updated
> o del_page_from_lru_list() is used instead list_move when isolated so
>    that the counters get updated correctly.
> o Pages that fail to migrate are put back on the LRU promptly to avoid
>    being isolated for too long.
>
> Signed-off-by: Mel Gorman<mel@....ul.ie>

Acked-by: Rik van Riel <riel@...hat.com>

Consider this an ack to your patch 5/12 with these fixes.

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