diff --git a/[refs] b/[refs]
index 8726ec41febf..62403659d9e5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9d96d82da437ed5f2053821779ed5d7797ed1f81
+refs/heads/master: 7e9abd89cbdf9b73d327d8173343abce9022609b
diff --git a/trunk/kernel/cgroup.c b/trunk/kernel/cgroup.c
index 15ac0e1e4f4d..f50edadfdd86 100644
--- a/trunk/kernel/cgroup.c
+++ b/trunk/kernel/cgroup.c
@@ -415,11 +415,11 @@ static struct css_set *find_css_set(
 
 	/* First see if we already have a cgroup group that matches
 	 * the desired set */
-	write_lock(&css_set_lock);
+	read_lock(&css_set_lock);
 	res = find_existing_css_set(oldcg, cgrp, template);
 	if (res)
 		get_css_set(res);
-	write_unlock(&css_set_lock);
+	read_unlock(&css_set_lock);
 
 	if (res)
 		return res;