linux-kernel - Re: [patch] mm: order evictable rescue in LRU putback

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Message-ID: <4ACCECD4.1050509@redhat.com>
Date:	Wed, 07 Oct 2009 15:32:36 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Johannes Weiner <hannes@...xchg.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Mel Gorman <mel@....ul.ie>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [patch] mm: order evictable rescue in LRU putback

Johannes Weiner wrote:

> This patch adds an explicit full barrier to force ordering between
> SetPageLRU() and PageMlocked() so that either one of the competitors
> rescues the page.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>
> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: Hugh Dickins <hugh.dickins@...cali.co.uk>
> Cc: Mel Gorman <mel@....ul.ie>
> Cc: Lee Schermerhorn <Lee.Schermerhorn@...com>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>

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

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