diff --git a/[refs] b/[refs]
index 49008b8748c2..9c1100c6c3e9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e268337dfe26dfc7efd422a804dbb27977a3cccc
+refs/heads/master: 67175b855bfd6ed95ffeff95532173c07de6432d
diff --git a/trunk/include/linux/kref.h b/trunk/include/linux/kref.h
index abc0120b09b7..9c07dcebded7 100644
--- a/trunk/include/linux/kref.h
+++ b/trunk/include/linux/kref.h
@@ -17,6 +17,7 @@
 
 #include <linux/bug.h>
 #include <linux/atomic.h>
+#include <linux/kernel.h>
 
 struct kref {
 	atomic_t refcount;