linux-kernel - Re: [PATCH 6/8] mm: lru_deactivate_fn should clear PG

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Message-ID: <20151104082253.GC29607@dhcp22.suse.cz>
Date:	Wed, 4 Nov 2015 09:22:53 +0100
From:	Michal Hocko <mhocko@...nel.org>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Michael Kerrisk <mtk.manpages@...il.com>,
	linux-api@...r.kernel.org, Hugh Dickins <hughd@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>,
	zhangyanfei@...fujitsu.com, Rik van Riel <riel@...hat.com>,
	Mel Gorman <mgorman@...e.de>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Jason Evans <je@...com>, Daniel Micay <danielmicay@...il.com>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	yalin.wang2010@...il.com, Shaohua Li <shli@...nel.org>
Subject: Re: [PATCH 6/8] mm: lru_deactivate_fn should clear PG_referenced

On Tue 03-11-15 10:10:30, Minchan Kim wrote:
> One thing I suspect is GUP with FOLL_TOUCH which calls mark_page_accesssed
> on anonymous page and will mark PG_referenced.

OK, this is what I've missed.
-- 
Michal Hocko
SUSE Labs
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