Hi Rafael,
On 09/02/16 21:05, Rafael J. Wysocki wrote:
[...]
> +/**
> + * cpufreq_update_util - Take a note about CPU utilization changes.
> + * @util: Current utilization.
> + * @max: Utilization ceiling.
> + *
> + * This function is called by the scheduler on every invocation of
> + * update_load_avg() on the CPU whose utilization is being updated.
> + */
> +void cpufreq_update_util(unsigned long util, unsigned long max)
> +{
> + struct update_util_data *data;
> +
> + rcu_read_lock();
> +
> + data = rcu_dereference(*this_cpu_ptr(&cpufreq_update_util_data));
> + if (data && data->func)
> + data->func(data, cpu_clock(smp_processor_id()), util, max);
Are util and max used anywhere? It seems to me that cpu_clock is used by
the callbacks to check if the sampling period is elapsed, but I couldn't
yet find who is using util and max.
Thanks,
- Juri
