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sched, thermal: Clean up preempt_enable_no_resched() abuse 

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 <peterz@infradead.org>
Cc: rjw@rjwysocki.net
Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: rui.zhang@intel.com
Cc: jacob.jun.pan@linux.intel.com
Cc: Mike Galbraith <bitbucket@online.de>
Cc: hpa@zytor.com
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: lenb@kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-zcfvacdlvlr63qmnn5i58vuj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2013-12-11 12:21:17 +01:00 committed by Ingo Molnar
parent 3708983452
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); atomic_inc(&idle_wakeup_counter);
} }
tick_nohz_idle_exit(); tick_nohz_idle_exit();
preempt_enable_no_resched(); preempt_enable();
} }
del_timer_sync(&wakeup_timer); del_timer_sync(&wakeup_timer);
clear_bit(cpunr, cpu_clamping_mask); clear_bit(cpunr, cpu_clamping_mask);