From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752654AbcEJPOH (ORCPT ); Tue, 10 May 2016 11:14:07 -0400 Received: from mx2.suse.de ([195.135.220.15]:52783 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751773AbcEJPOE (ORCPT ); Tue, 10 May 2016 11:14:04 -0400 Subject: Re: [PATCH 4/6] mm/page_owner: introduce split_page_owner and replace manual handling To: js1304@gmail.com, Andrew Morton References: <1462252984-8524-1-git-send-email-iamjoonsoo.kim@lge.com> <1462252984-8524-5-git-send-email-iamjoonsoo.kim@lge.com> Cc: mgorman@techsingularity.net, Minchan Kim , Alexander Potapenko , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim From: Vlastimil Babka Message-ID: <5731FABA.8070308@suse.cz> Date: Tue, 10 May 2016 17:14:02 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <1462252984-8524-5-git-send-email-iamjoonsoo.kim@lge.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/03/2016 07:23 AM, js1304@gmail.com wrote: > From: Joonsoo Kim > > split_page() calls set_page_owner() to set up page_owner to each pages. > But, it has a drawback that head page and the others have different > stacktrace because callsite of set_page_owner() is slightly differnt. > To avoid this problem, this patch copies head page's page_owner to > the others. It needs to introduce new function, split_page_owner() but > it also remove the other function, get_page_owner_gfp() so looks good > to do. OK. Acked-by: Vlastimil Babka