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From: Li Zefan <lizf@cn.fujitsu.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Menage <menage@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com>,
	Matt Helsley <matthltc@us.ibm.com>,
	Stephane Eranian <eranian@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	containers@lists.linux-foundation.org
Subject: [PATCH v2 1/6] cgroups: Shrink struct cgroup_subsys
Date: Wed, 15 Dec 2010 17:35:01 +0800	[thread overview]
Message-ID: <4D088BC5.5060707@cn.fujitsu.com> (raw)
In-Reply-To: <4D088BB5.30903@cn.fujitsu.com>

On x86_32, sizeof(struct cgroup_subsys) shrinks from 276 bytes
to 264.

Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 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..63d953d 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;
+
+	bool active:1;
+	bool disabled:1;
+	bool 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;
+	bool use_id:1;
+
 #define MAX_CGROUP_TYPE_NAMELEN 32
 	const char *name;
 
-- 
1.6.3

  reply	other threads:[~2010-12-15  9:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-15  9:34 [PATCH v2 0/6] cgroups: Bindable cgroup subsystems Li Zefan
2010-12-15  9:35 ` Li Zefan [this message]
2010-12-15  9:35 ` [PATCH v2 2/6] cgroups: Allow to bind a subsystem to a cgroup hierarchy Li Zefan
2010-12-15  9:35 ` [PATCH v2 3/6] cgroups: Allow to unbind subsystem from " Li Zefan
2010-12-15  9:36 ` [PATCH v2 4/6] cgroups: Mark some subsystems bindable/unbindable Li Zefan
2010-12-15  9:36 ` [PATCH v2 5/6] cgroups: Triger BUG if a bindable subsystem calls css_get() Li Zefan
2010-12-15  9:36 ` [PATCH v2 6/6] cgroups: Update documentation for bindable subsystems Li Zefan

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