rcu: add support for dynamic ticks and preempt rcu

[h-e-n] / kernel / time / tick-sched.c

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index fa9bb73..2968298 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -282,6 +282,7 @@ void tick_nohz_stop_sched_tick(void)
                        ts->idle_tick = ts->sched_timer.expires;
                        ts->tick_stopped = 1;
                        ts->idle_jiffies = last_jiffies;
+                       rcu_enter_nohz();
                }
 
                /*
@@ -375,6 +376,8 @@ void tick_nohz_restart_sched_tick(void)
                return;
        }
 
+       rcu_exit_nohz();
+
        /* Update jiffies first */
        select_nohz_load_balancer(0);
        now = ktime_get();