Commit 031a7f45 authored Oct 27, 2014 by Frederic Weisbecker

apm32: Fix cputime == jiffies assumption



That code wrongly assumes that cputime_t wraps jiffies_t. Lets use
the correct accessors/mutators.

No real harm now as that code can't be used with full dynticks.

Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc; John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

parent e0758676

arch/x86/kernel/apm_32.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -919,7 +919,7 @@ recalc:
		} else if (jiffies_since_last_check > idle_period) {
		unsigned int idle_percentage;

		idle_percentage = stime - last_stime;
		idle_percentage = cputime_to_jiffies(stime - last_stime);
		idle_percentage *= 100;
		idle_percentage /= jiffies_since_last_check;
		use_apm_idle = (idle_percentage > idle_threshold);

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