diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index bd1103763551bb60afaa403bff72123617bb95eb..952cd0c223feb6eed184c212c6dfc63174d9eca2 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -150,8 +150,7 @@ struct rcu_node {
 	struct swait_queue_head nocb_gp_wq[2];
 				/* Place for rcu_nocb_kthread() to wait GP. */
 #endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-	int need_future_gp[2];
-				/* Counts of upcoming no-CB GP requests. */
+	int need_future_gp[4];	/* Counts of upcoming no-CB GP requests. */
 	raw_spinlock_t fqslock ____cacheline_internodealigned_in_smp;
 
 	spinlock_t exp_lock ____cacheline_internodealigned_in_smp;