linux-kernel - Re: [PATCH] mm: compaction: Iron out isolate_freepages_block() and isolate_freepages

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Message-ID: <20121008065330.GC13817@bbox>
Date:	Mon, 8 Oct 2012 15:53:30 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Peter Ujfalusi <peter.ujfalusi@...com>
Subject: Re: [PATCH] mm: compaction: Iron out isolate_freepages_block() and
 isolate_freepages_range() -fix1

On Thu, Oct 04, 2012 at 03:00:17PM +0100, Mel Gorman wrote:
> The following patch is still missing from linux-next/akpm so am
> resending in case it got lost in the mess.
> 
> 
> CMA is reported to be broken in next-20120926. Minchan Kim pointed out
> that this was due to nr_scanned != total_isolated in the case of CMA
> because PageBuddy pages are one scan but many isolations in CMA. This
> patch should address the problem.
> 
> This patch is a fix for
> mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
> 
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Andrew, please fold this into [1] and pick.
Mel, Thanks for seeing this problem while I enjoy holiday.

[1] mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix2
-- 
Kind regards,
Minchan Kim
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