1 files changed, 7 insertions, 2 deletions

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 60c9c60e9108..41be02250e08 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -276,10 +276,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
 {
         unsigned long seq, last_jiffies, next_jiffies, delta_jiffies;
         ktime_t last_update, expires, ret = { .tv64 = 0 };
+        unsigned long rcu_delta_jiffies;
         struct clock_event_device *dev = __get_cpu_var(tick_cpu_device).evtdev;
         u64 time_delta;
 
-
         /* Read jiffies and the time when jiffies were updated last */
         do {
                 seq = read_seqbegin(&xtime_lock);
@@ -288,7 +288,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
                 time_delta = timekeeping_max_deferment();
         } while (read_seqretry(&xtime_lock, seq));
 
-        if (rcu_needs_cpu(cpu) || printk_needs_cpu(cpu) ||
+        if (rcu_needs_cpu(cpu, &rcu_delta_jiffies) || printk_needs_cpu(cpu) ||
             arch_needs_cpu(cpu)) {
                 next_jiffies = last_jiffies + 1;
                 delta_jiffies = 1;
@@ -296,6 +296,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
                 /* Get the next timer wheel timer */
                 next_jiffies = get_next_timer_interrupt(last_jiffies);
                 delta_jiffies = next_jiffies - last_jiffies;
+                if (rcu_delta_jiffies < delta_jiffies) {
+                        next_jiffies = last_jiffies + rcu_delta_jiffies;
+                        delta_jiffies = rcu_delta_jiffies;
+                }
         }
         /*
          * Do not stop the tick, if we are only one off
@@ -369,6 +373,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
                  */
                 if (!ts->tick_stopped) {
                         select_nohz_load_balancer(1);
+                        calc_load_enter_idle();
 
                         ts->last_tick = hrtimer_get_expires(&ts->sched_timer);
                         ts->tick_stopped = 1;