From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755312AbbKDIW6 (ORCPT ); Wed, 4 Nov 2015 03:22:58 -0500 Received: from mail-wm0-f43.google.com ([74.125.82.43]:34959 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752543AbbKDIW4 (ORCPT ); Wed, 4 Nov 2015 03:22:56 -0500 Date: Wed, 4 Nov 2015 09:22:53 +0100 From: Michal Hocko To: Minchan Kim Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michael Kerrisk , linux-api@vger.kernel.org, Hugh Dickins , Johannes Weiner , zhangyanfei@cn.fujitsu.com, Rik van Riel , Mel Gorman , KOSAKI Motohiro , Jason Evans , Daniel Micay , "Kirill A. Shutemov" , yalin.wang2010@gmail.com, Shaohua Li Subject: Re: [PATCH 6/8] mm: lru_deactivate_fn should clear PG_referenced Message-ID: <20151104082253.GC29607@dhcp22.suse.cz> References: <1446188504-28023-1-git-send-email-minchan@kernel.org> <1446188504-28023-7-git-send-email-minchan@kernel.org> <20151030124711.GB23627@dhcp22.suse.cz> <20151103011030.GF17906@bbox> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151103011030.GF17906@bbox> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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