From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id A32F76B0011 for ; Fri, 13 May 2011 04:51:23 -0400 (EDT) From: Greg Thelen Subject: [RFC][PATCH v7 09/14] cgroup: move CSS_ID_MAX to cgroup.h Date: Fri, 13 May 2011 01:47:48 -0700 Message-Id: <1305276473-14780-10-git-send-email-gthelen@google.com> In-Reply-To: <1305276473-14780-1-git-send-email-gthelen@google.com> References: <1305276473-14780-1-git-send-email-gthelen@google.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, containers@lists.osdl.org, linux-fsdevel@vger.kernel.org, Andrea Righi , Balbir Singh , KAMEZAWA Hiroyuki , Daisuke Nishimura , Minchan Kim , Johannes Weiner , Ciju Rajan K , David Rientjes , Wu Fengguang , Vivek Goyal , Dave Chinner , Greg Thelen This allows users of css_id() to know the largest possible css_id value. This knowledge can be used to build per-cgroup bitmaps. Signed-off-by: Greg Thelen --- include/linux/cgroup.h | 1 + kernel/cgroup.c | 1 - 2 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index ab4ac0c..5eb6543 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -624,6 +624,7 @@ bool css_is_ancestor(struct cgroup_subsys_state *cg, const struct cgroup_subsys_state *root); /* Get id and depth of css */ +#define CSS_ID_MAX (65535) unsigned short css_id(struct cgroup_subsys_state *css); unsigned short css_depth(struct cgroup_subsys_state *css); struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id); diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 2731d11..ab7e7a7 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -129,7 +129,6 @@ static struct cgroupfs_root rootnode; * CSS ID -- ID per subsys's Cgroup Subsys State(CSS). used only when * cgroup_subsys->use_id != 0. */ -#define CSS_ID_MAX (65535) struct css_id { /* * The css to which this ID points. This pointer is set to valid value -- 1.7.3.1 -- 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