From: Steve Muckle smuckle@linaro.org
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@linaro.org Signed-off-by: Viresh Kumar viresh.kumar@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 f91c25718d16..45bd812be8bc 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1786,6 +1786,9 @@ 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