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

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Pull NOHZ update from Thomas Gleixner:
 "Remove the call into the nohz idle code from the fake 'idle' thread in
  the powerclamp driver along with the export of those functions which
  was smuggeled in via the thermal tree.  People have tried to hack
  around it in the nohz core code, but it just violates all rightful
  assumptions of that code about the only valid calling context (i.e.
  the proper idle task).

  The powerclamp trainwreck will still work, it just wont get the
  benefit of long idle sleeps"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick/powerclamp: Remove tick_nohz_idle abuse
This commit is contained in:
Linus Torvalds 2014-12-19 13:29:20 -08:00
commit 4bb9374e0b
2 changed files with 0 additions and 4 deletions
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2
drivers/thermal/intel_powerclamp.c
View file

@ -435,7 +435,6 @@ static int clamp_thread(void *arg)
* allowed. thus jiffies are updated properly.
*/
preempt_disable();
tick_nohz_idle_enter();
/* mwait until target jiffies is reached */
while (time_before(jiffies, target_jiffies)) {
unsigned long ecx = 1;
@ -451,7 +450,6 @@ static int clamp_thread(void *arg)
start_critical_timings();
atomic_inc(&idle_wakeup_counter);
}
tick_nohz_idle_exit();
preempt_enable();
}
del_timer_sync(&wakeup_timer);

2
kernel/time/tick-sched.c
View file

@ -847,7 +847,6 @@ void tick_nohz_idle_enter(void)
local_irq_enable();
}
EXPORT_SYMBOL_GPL(tick_nohz_idle_enter);
/**
* tick_nohz_irq_exit - update next tick event from interrupt exit
@ -974,7 +973,6 @@ void tick_nohz_idle_exit(void)
local_irq_enable();
}
EXPORT_SYMBOL_GPL(tick_nohz_idle_exit);
static int tick_nohz_reprogram(struct tick_sched *ts, ktime_t now)
{