From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx202.postini.com [74.125.245.202]) by kanga.kvack.org (Postfix) with SMTP id 60F966B0044 for ; Wed, 28 Mar 2012 06:46:31 -0400 (EDT) Received: from m4.gw.fujitsu.co.jp (unknown [10.0.50.74]) by fgwmail6.fujitsu.co.jp (Postfix) with ESMTP id 8ADD33EE0BC for ; Wed, 28 Mar 2012 19:46:29 +0900 (JST) Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 7072445DE50 for ; Wed, 28 Mar 2012 19:46:29 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (s4.gw.fujitsu.co.jp [10.0.50.94]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 56B2745DE54 for ; Wed, 28 Mar 2012 19:46:29 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id 33CDB1DB803F for ; Wed, 28 Mar 2012 19:46:29 +0900 (JST) Received: from m107.s.css.fujitsu.com (m107.s.css.fujitsu.com [10.240.81.147]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id DC5691DB803E for ; Wed, 28 Mar 2012 19:46:28 +0900 (JST) Message-ID: <4F72EB84.7080000@jp.fujitsu.com> Date: Wed, 28 Mar 2012 19:44:20 +0900 From: KAMEZAWA Hiroyuki MIME-Version: 1.0 Subject: [RFC][PATCH 0/6 v2] reducing page_cgroup size Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: "linux-mm@kvack.org" Cc: Linux Kernel , Michal Hocko , Johannes Weiner , Andrew Morton , Han Ying , Glauber Costa , Konstantin Khlebnikov , Suleiman Souhlal Hi, here is v2 (still RFC again because I changed many parts.) I'd like to post v3 without 'RFC' tag after Lsf-MM Summit. This series is for reducing size of 'struct page_cgroup' to 8 bytes. v2 contains 6 patches and did clean-ups and fixes race in v1 and adds a trial to integrate struct page_cgroup into struct page. each patches are... 1/6 ....add methods to access pc->mem_cgroup 2/6 ....add pc_set_mem_cgroup_and_flags() to set ->mem_cgroup and flags by one call. 3/6 ....add PageCgroupReset() for handling a race. 4/6 ....reduce size of struct page_cgroup by removing ->mem_cgroup 5/6 ....remove unnecessary memory barrier 6/6 ....add CONFIG_INTEGRATED_PAGE_CGROUP to place page_cgroup in struct page. Regards, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org