linux-kernel - Re: [PATCH] compaction: fix COMPACTPAGEFAILED counting

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Date:	Mon, 23 Aug 2010 11:41:49 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Minchan Kim <minchan.kim@...il.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel List <linux-kernel@...r.kernel.org>,
	linux-mm@...ck.org, Hugh Dickins <hughd@...gle.com>,
	Andi Kleen <andi@...stfloor.org>, Mel Gorman <mel@....ul.ie>
Subject: Re: [PATCH] compaction: fix COMPACTPAGEFAILED counting

On Tue, 24 Aug 2010, Minchan Kim wrote

> This patch introude new argument 'cleanup' to migrate_pages.
> Only if we set 1 to 'cleanup', migrate_page will clean up the lists.
> Otherwise, caller need to clean up the lists so it has a chance to postprocess
> the pages.

Could we simply make migrate_pages simply not do any cleanup?
Caller has to call putback_lru_pages()?

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