diff options
| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-03-22 01:17:43 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-03-22 23:13:36 +0100 |
| commit | 539a4c4247c2697d291a8fb02c485ccd7cf34f05 (patch) | |
| tree | 5f0259e9dfd4d16eb39acfbb3a381953da34798f | |
| parent | cpufreq: Always update current frequency before startig governor (diff) | |
| download | linux-dev-539a4c4247c2697d291a8fb02c485ccd7cf34f05.tar.xz linux-dev-539a4c4247c2697d291a8fb02c485ccd7cf34f05.zip | |
cpufreq: governor: Always schedule work on the CPU running update
Modify dbs_irq_work() to always schedule the process-context work
on the current CPU which also ran the dbs_update_util_handler()
that the irq_work being handled came from.
This causes the entire frequency update handling (involving the
"ondemand" or "conservative" governors) to be carried out by the
CPU whose frequency is to be updated and reduces the overall amount
of inter-CPU noise related to cpufreq.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 1c25ef405616..10a5cfeae8c5 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -329,7 +329,7 @@ static void dbs_irq_work(struct irq_work *irq_work) struct policy_dbs_info *policy_dbs; policy_dbs = container_of(irq_work, struct policy_dbs_info, irq_work); - schedule_work(&policy_dbs->work); + schedule_work_on(smp_processor_id(), &policy_dbs->work); } static void dbs_update_util_handler(struct update_util_data *data, u64 time, |