Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758300Ab1EMIwr (ORCPT ); Fri, 13 May 2011 04:52:47 -0400 Received: from smtp-out.google.com ([74.125.121.67]:40428 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758189Ab1EMIwq (ORCPT ); Fri, 13 May 2011 04:52:46 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=Iew+AQYt/UXHHBoVTDPpb2U60ZPtX4QDABNhP2M2eGy2AAHNMSyEGewiN/g7Vri5H vSxBlPjM7T9xj+XcD3oKQ== From: Greg Thelen 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 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> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: <1305276473-14780-1-git-send-email-gthelen@google.com> References: <1305276473-14780-1-git-send-email-gthelen@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1490 Lines: 41 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/