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sched, thermal: Clean up preempt_enable_no_resched() abuse

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The only valid use of preempt_enable_no_resched() is if the very next
line is schedule() or if we know preemption cannot actually be enabled
by that statement due to known more preempt_count 'refs'.

Signed-off-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: Eliezer Tamir <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Mike Galbraith <[email protected]>
Cc: [email protected]
Cc: Arjan van de Ven <[email protected]>
Cc: [email protected]
Cc: Linus Torvalds <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2013-12-11 12:21:17 +01:00 • committed by Ingo Molnar
commit 130816ce4d
1 changed files with 1 additions and 1 deletions
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2
drivers/thermal/intel_powerclamp.c
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@ -443,7 +443,7 @@ static int clamp_thread(void *arg)
atomic_inc(&idle_wakeup_counter);
}
tick_nohz_idle_exit();
preempt_enable_no_resched();
preempt_enable();
}
del_timer_sync(&wakeup_timer);
clear_bit(cpunr, cpu_clamping_mask);