linux-kernel - Re: [PATCH] mm: clean up __count_immobile

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Date:	Mon, 11 Jun 2012 14:40:11 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Minchan Kim <minchan@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...e.cz>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH] mm: clean up __count_immobile_pages

On Mon, 11 Jun 2012 11:07:22 +0900
Minchan Kim <minchan@...nel.org> wrote:

> __count_immobile_pages naming is rather awkward.
> This patch clean up the function and add comment.

This conflicts with
mm-compaction-handle-incorrect-migrate_unmovable-type-pageblocks.patch
and its fixes.

> + * This function can race in PageLRU and MIGRATE_MOVABLE can have unmovable
> + * pages so that it might be not exact.

I don't understand this.  Functions race against other functions, not
against a page flag.  Can we have another attempt at this description
please?

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