linux-kernel - Re: [PATCH 2/2] mm: support MIGRATE

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Message-ID: <20120907081029.GU11266@suse.de>
Date:	Fri, 7 Sep 2012 09:10:29 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Kyungmin Park <kmpark@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH 2/2] mm: support MIGRATE_DISCARD

On Fri, Sep 07, 2012 at 11:26:01AM +0900, Minchan Kim wrote:
> On Fri, Sep 07, 2012 at 09:57:12AM +0900, Kyungmin Park wrote:
> > Hi Mel,
> > 
> > After apply your patch, It got the below message.
> > Please note that it's not the latest kernel. it's kernel v3.0.31 + CMA
> > + your patch.
> > It seems it should not be active but it contains active field.
> 
> Yeb. At the moment, shrink_page_list shouldn't handle active pages
> so we should clear PG_active bit in reclaim_clean_pages_from_list.
> 

Yep, that was an obvious thing I missed. It was a very fast prototype to
illustrate my point. It should be possible to fix.

-- 
Mel Gorman
SUSE Labs
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