Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

[powerpc.git] / kernel / time / tick-sched.c

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index f4fc867..3483e6c 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -217,6 +217,14 @@ void tick_nohz_stop_sched_tick(void)
                 * the scheduler tick in nohz_restart_sched_tick.
                 */
                if (!ts->tick_stopped) {
+                       if (select_nohz_load_balancer(1)) {
+                               /*
+                                * sched tick not stopped!
+                                */
+                               cpu_clear(cpu, nohz_cpu_mask);
+                               goto out;
+                       }
+
                        ts->idle_tick = ts->sched_timer.expires;
                        ts->tick_stopped = 1;
                        ts->idle_jiffies = last_jiffies;
@@ -285,6 +293,7 @@ void tick_nohz_restart_sched_tick(void)
        now = ktime_get();
 
        local_irq_disable();
+       select_nohz_load_balancer(0);
        tick_do_update_jiffies64(now);
        cpu_clear(cpu, nohz_cpu_mask);