Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
authorLinus Torvalds <torvalds@linux-foundation.org>
Fri, 19 Dec 2014 21:29:20 +0000 (13:29 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 19 Dec 2014 21:29:20 +0000 (13:29 -0800)
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

drivers/thermal/intel_powerclamp.c
kernel/time/tick-sched.c

index b46c706e1cacf1027657fda668dfdd4057f6319e..e98b4249187c3eaec106fc3602fe520fa710c95d 100644 (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);
index 4d54b7540585a83c41a2dc0da34b1f9e7e9077d7..1363d58f07e976475ffc583dbf16c81c120b1a16 100644 (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)
 {