diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index a342b032112c..88d921c5c449 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -572,6 +572,7 @@ rcu_start_gp(struct rcu_state *rsp, unsigned long flags)
 	/* Special-case the common single-level case. */
 	if (NUM_RCU_NODES == 1) {
 		rnp->qsmask = rnp->qsmaskinit;
+		rsp->signaled = RCU_SIGNAL_INIT; /* force_quiescent_state OK. */
 		spin_unlock_irqrestore(&rnp->lock, flags);
 		return;
 	}