Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
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
-4
-2
drivers/thermal/intel_powerclamp.c
-2
drivers/thermal/intel_powerclamp.c
···
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* allowed. thus jiffies are updated properly.
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*/
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preempt_disable();
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-
tick_nohz_idle_enter();
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/* mwait until target jiffies is reached */
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while (time_before(jiffies, target_jiffies)) {
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unsigned long ecx = 1;
···
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start_critical_timings();
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atomic_inc(&idle_wakeup_counter);
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}
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-
tick_nohz_idle_exit();
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preempt_enable();
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}
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del_timer_sync(&wakeup_timer);
-2
kernel/time/tick-sched.c
-2
kernel/time/tick-sched.c
···
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local_irq_enable();
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}
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-
EXPORT_SYMBOL_GPL(tick_nohz_idle_enter);
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/**
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* tick_nohz_irq_exit - update next tick event from interrupt exit
···
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local_irq_enable();
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}
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-
EXPORT_SYMBOL_GPL(tick_nohz_idle_exit);
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static int tick_nohz_reprogram(struct tick_sched *ts, ktime_t now)
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{