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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2014-10-27 17:16:04 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2015-07-29 15:44:58 +0200 |
| commit | 031a7f456adecaff692bc040b31a7d2262b4ee56 (patch) | |
| tree | 1c8973c5d1e8a57350f1075f26db817105db2b9f /arch/x86/kernel/apm_32.c | |
| parent | e075867681ca9b8c0b8823e24d0fb4ce3b4f2655 (diff) | |
| download | op-kernel-dev-031a7f456adecaff692bc040b31a7d2262b4ee56.zip op-kernel-dev-031a7f456adecaff692bc040b31a7d2262b4ee56.tar.gz | |
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>
Diffstat (limited to 'arch/x86/kernel/apm_32.c')
| -rw-r--r-- | arch/x86/kernel/apm_32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index 927ec92..052c9c3 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -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); |
