From: Steve Muckle <smuckle.li...@gmail.com>
In preparation for the scheduler cpufreq callback happening on remote
CPUs, check for this case in intel_pstate which currently requires the
callback run on the local CPU. Such callbacks are ignored for now.
Signed-off-by: Steve Muckle <smuckle.li...@gmail.com>
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
drivers/cpufreq/intel_pstate.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 3d37219a0dd7..bd60f1cd7ea6 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1930,6 +1930,9 @@ static void intel_pstate_update_util(struct
update_util_data *data, u64 time,
struct cpudata *cpu = container_of(data, struct cpudata, update_util);
u64 delta_ns;
+ if (smp_processor_id() != data->cpu)
+ return;
+
if (pstate_funcs.get_target_pstate == get_target_pstate_use_cpu_load) {
if (flags & SCHED_CPUFREQ_IOWAIT) {
cpu->iowait_boost = int_tofp(1);
--
2.7.1.410.g6faf27b
