diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 70191a5..cce2559 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -275,6 +275,7 @@
 extern void rcu_init(void);
 extern void rcu_check_callbacks(int cpu, int user);
 extern void rcu_restart_cpu(int cpu);
+extern long rcu_batches_completed(void);
 
 /* Exported interfaces */
 extern void FASTCALL(call_rcu(struct rcu_head *head,