Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

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

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 69dba0c71727b70828fbd9b3122392feba4c2f3c..d63008b09a4cee1cfc71b5e53e929b39312afff0 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -191,7 +191,6 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time)
 void tick_nohz_stop_sched_tick(void)
 {
        unsigned long seq, last_jiffies, next_jiffies, delta_jiffies, flags;
-       unsigned long rt_jiffies;
        struct tick_sched *ts;
        ktime_t last_update, expires, now;
        struct clock_event_device *dev = __get_cpu_var(tick_cpu_device).evtdev;
@@ -243,10 +242,6 @@ void tick_nohz_stop_sched_tick(void)
        next_jiffies = get_next_timer_interrupt(last_jiffies);
        delta_jiffies = next_jiffies - last_jiffies;
 
-       rt_jiffies = rt_needs_cpu(cpu);
-       if (rt_jiffies && rt_jiffies < delta_jiffies)
-               delta_jiffies = rt_jiffies;
-
        if (rcu_needs_cpu(cpu))
                delta_jiffies = 1;
        /*
@@ -281,6 +276,7 @@ void tick_nohz_stop_sched_tick(void)
                        ts->tick_stopped = 1;
                        ts->idle_jiffies = last_jiffies;
                        rcu_enter_nohz();
+                       sched_clock_tick_stop(cpu);
                }
 
                /*
@@ -380,6 +376,7 @@ void tick_nohz_restart_sched_tick(void)
        select_nohz_load_balancer(0);
        now = ktime_get();
        tick_do_update_jiffies64(now);
+       sched_clock_tick_start(cpu);
        cpu_clear(cpu, nohz_cpu_mask);
 
        /*
@@ -398,6 +395,7 @@ void tick_nohz_restart_sched_tick(void)
                sub_preempt_count(HARDIRQ_OFFSET);
        }
 
+       touch_softlockup_watchdog();
        /*
         * Cancel the scheduled timer and restore the tick
         */