From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755419Ab0JVIIl (ORCPT ); Fri, 22 Oct 2010 04:08:41 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:58751 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755357Ab0JVIIg (ORCPT ); Fri, 22 Oct 2010 04:08:36 -0400 Message-ID: <4CC146BA.7080009@cn.fujitsu.com> Date: Fri, 22 Oct 2010 16:09:30 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: "akpm >> Andrew Morton" CC: Paul Menage , Stephane Eranian , LKML , containers@lists.linux-foundation.org Subject: [PATCH 1/7] cgroups: Shrink struct cgroup_subsys References: <4CC146A4.9090505@cn.fujitsu.com> In-Reply-To: <4CC146A4.9090505@cn.fujitsu.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On x86_32, sizeof(struct cgroup_subsys) shrinks from 276 bytes to 264. Signed-off-by: Li Zefan --- include/linux/cgroup.h | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index ed4ba11..e23ded6 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -481,14 +481,16 @@ struct cgroup_subsys { void (*bind)(struct cgroup_subsys *ss, struct cgroup *root); int subsys_id; - int active; - int disabled; - int early_init; + + unsigned int active:1; + unsigned int disabled:1; + unsigned int early_init:1; /* * True if this subsys uses ID. ID is not available before cgroup_init() * (not available in early_init time.) */ - bool use_id; + unsigned int use_id:1; + #define MAX_CGROUP_TYPE_NAMELEN 32 const char *name; -- 1.7.0.1