From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932953Ab2IGJRJ (ORCPT ); Fri, 7 Sep 2012 05:17:09 -0400 Received: from cantor2.suse.de ([195.135.220.15]:54855 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755052Ab2IGJRG (ORCPT ); Fri, 7 Sep 2012 05:17:06 -0400 Date: Fri, 7 Sep 2012 10:17:01 +0100 From: Mel Gorman To: Minchan Kim Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Kamezawa Hiroyuki , Yasuaki Ishimatsu , Xishi Qiu , Wen Congyang Subject: Re: [PATCH v3 0/4] memory-hotplug: handle page race between allocation and isolation Message-ID: <20120907091701.GW11266@suse.de> References: <1346978372-17903-1-git-send-email-minchan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1346978372-17903-1-git-send-email-minchan@kernel.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 07, 2012 at 09:39:28AM +0900, Minchan Kim wrote: > Memory hotplug has a subtle race problem so this patchset fixes the problem > (Look at [3/3] for detail and please confirm the problem before review > other patches in this series.) > > [1/4] is just clean up and help for [2/4]. > [2/4] keeps the migratetype information to freed page's index field > and [3/4] uses the information. > [3/4] fixes the race problem with [2/4]'s information. > [4/4] enhance memory-hotremove operation success ratio > > After applying [2/4], migratetype argument in __free_one_page > and free_one_page is redundant so we can remove it but I decide > to not touch them because it increases code size about 50 byte. > > This patchset is based on mmotm-2012-09-06-16-46 > Nothing jumped out and poked me in the eye so for the series; Acked-by: Mel Gorman Thanks! -- Mel Gorman SUSE Labs