提交 b14ea38e 编写于 作者: L Linus Torvalds

Merge branch 'v28-timers-for-linus' of...

Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  NOHZ: fix thinko in the timer restart code path
......@@ -567,11 +567,21 @@ static void tick_nohz_switch_to_nohz(void)
static void tick_nohz_kick_tick(int cpu)
{
struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
ktime_t delta, now;
if (!ts->tick_stopped)
return;
tick_nohz_restart(ts, ktime_get());
/*
* Do not touch the tick device, when the next expiry is either
* already reached or less/equal than the tick period.
*/
now = ktime_get();
delta = ktime_sub(ts->sched_timer.expires, now);
if (delta.tv64 <= tick_period.tv64)
return;
tick_nohz_restart(ts, now);
}
#else
......
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