---

yaml --- r: 190537 b: refs/heads/master c: 8b46f88 h: refs/heads/master i: 190535: f7fdb73 v: v3
git-mirror · Apr 30, 2010 · fc915b9 · fc915b9
1 parent 09dff43
commit fc915b9
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8b08ca52f5942c21564bbb90ccfb61053f2c26a1
+refs/heads/master: 8b46f880841aac821af8efa6581bb0e46b8b9845
diff --git a/trunk/kernel/cgroup_freezer.c b/trunk/kernel/cgroup_freezer.c
@@ -205,9 +205,12 @@ static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
 	 * No lock is needed, since the task isn't on tasklist yet,
 	 * so it can't be moved to another cgroup, which means the
 	 * freezer won't be removed and will be valid during this
-	 * function call.
+	 * function call.  Nevertheless, apply RCU read-side critical
+	 * section to suppress RCU lockdep false positives.
 	 */
+	rcu_read_lock();
 	freezer = task_freezer(task);
+	rcu_read_unlock();
 
 	/*
 	 * The root cgroup is non-freezable, so we can skip the