From 430517d74fc61bfe206e025407fa17854d4d771b Mon Sep 17 00:00:00 2001
From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 22 Apr 2010 17:30:40 +0800
Subject: [PATCH] --- yaml --- r: 190681 b: refs/heads/master c:
 b629317e66fb1c6066c550dded45ab85a936163c h: refs/heads/master i:   190679:
 3d3ecd42f94bc059d61b7c8feb745f80e5cc8357 v: v3

---
 [refs]                     | 2 +-
 trunk/kernel/sched_debug.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 4fa53cdf5f97..251f12621522 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fae9c791703606636c1220e47f6690660042ce7f
+refs/heads/master: b629317e66fb1c6066c550dded45ab85a936163c
diff --git a/trunk/kernel/sched_debug.c b/trunk/kernel/sched_debug.c
index 9b49db144037..19be00ba6123 100644
--- a/trunk/kernel/sched_debug.c
+++ b/trunk/kernel/sched_debug.c
@@ -114,7 +114,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
 	{
 		char path[64];
 
+		rcu_read_lock();
 		cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
+		rcu_read_unlock();
 		SEQ_printf(m, " %s", path);
 	}
 #endif