diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 7789e666394d..49bb363a0837 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -984,26 +984,8 @@ rcu_start_gp(struct rcu_state *rsp, unsigned long flags)
 	rsp->fqs_state = RCU_GP_INIT; /* Hold off force_quiescent_state. */
 	rsp->jiffies_force_qs = jiffies + RCU_JIFFIES_TILL_FORCE_QS;
 	record_gp_stall_check_time(rsp);
-
-	/* Special-case the common single-level case. */
-	if (NUM_RCU_NODES == 1) {
-		rcu_preempt_check_blocked_tasks(rnp);
-		rnp->qsmask = rnp->qsmaskinit;
-		rnp->gpnum = rsp->gpnum;
-		rnp->completed = rsp->completed;
-		rsp->fqs_state = RCU_SIGNAL_INIT; /* force_quiescent_state OK */
-		rcu_start_gp_per_cpu(rsp, rnp, rdp);
-		rcu_preempt_boost_start_gp(rnp);
-		trace_rcu_grace_period_init(rsp->name, rnp->gpnum,
-					    rnp->level, rnp->grplo,
-					    rnp->grphi, rnp->qsmask);
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;
-	}
-
 	raw_spin_unlock(&rnp->lock);  /* leave irqs disabled. */
 
-
 	/* Exclude any concurrent CPU-hotplug operations. */
 	raw_spin_lock(&rsp->onofflock);  /* irqs already disabled. */