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-rw-r--r--kernel/rcutree.c18
1 files changed, 0 insertions, 18 deletions
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. */