Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / kernel / time / tick-sched.c

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 63f24b55069551f4331f09c090657b66be139f7e..2968298f8f364923010c440fe68f6e02d2f32e2a 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -137,6 +137,7 @@ void tick_nohz_update_jiffies(void)
 
        cpu_clear(cpu, nohz_cpu_mask);
        now = ktime_get();
+       ts->idle_waketime = now;
 
        local_irq_save(flags);
        tick_do_update_jiffies64(now);
@@ -281,6 +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();
                }
 
                /*
@@ -374,6 +376,8 @@ void tick_nohz_restart_sched_tick(void)
                return;
        }
 
+       rcu_exit_nohz();
+
        /* Update jiffies first */
        select_nohz_load_balancer(0);
        now = ktime_get();
@@ -400,6 +404,7 @@ void tick_nohz_restart_sched_tick(void)
         * Cancel the scheduled timer and restore the tick
         */
        ts->tick_stopped  = 0;
+       ts->idle_exittime = now;
        hrtimer_cancel(&ts->sched_timer);
        ts->sched_timer.expires = ts->idle_tick;
 
@@ -679,7 +684,7 @@ int tick_check_oneshot_change(int allow_nohz)
        if (ts->nohz_mode != NOHZ_MODE_INACTIVE)
                return 0;
 
-       if (!timekeeping_is_continuous() || !tick_is_oneshot_available())
+       if (!timekeeping_valid_for_hres() || !tick_is_oneshot_available())
                return 0;
 
        if (!allow_nohz)