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Groups > linux.kernel > #1393250
| From | Akshay Adiga <akshay.adiga@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH -next 2/2] cpufreq: powernv: del_timer_sync when global and local pstate are equal |
| Date | 2016-05-03 11:50 +0200 |
| Message-ID | <ruF7Q-5LC-3@gated-at.bofh.it> (permalink) |
| References | <ruF7Q-5LC-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Deleting pending gpstates->timer for the policy when global and local pstate are equal while executing target_index(). This saves an unnecessary irq call. Signed-off-by: Akshay Adiga <akshay.adiga@linux.vnet.ibm.com> --- Patch is based on Rafael's linux-next drivers/cpufreq/powernv-cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 1f0e20c..54c4536 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -647,6 +647,8 @@ static int powernv_cpufreq_target_index(struct cpufreq_policy *policy, */ if (gpstate_id != freq_data.pstate_id) queue_gpstate_timer(gpstates); + else + del_timer_sync(&gpstates->timer); gpstates_done: freq_data.gpstate_id = gpstate_id; -- 2.5.5
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[PATCH -next 2/2] cpufreq: powernv: del_timer_sync when global and local pstate are equal Akshay Adiga <akshay.adiga@linux.vnet.ibm.com> - 2016-05-03 11:50 +0200
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