Re: [PATCH 1/6] cpufreq: schedutil: reset sg_cpus's flags at IDLE enter

Rafael J. Wysocki
2017-03-28T22:23:49Z

On Thursday, March 02, 2017 03:45:02 PM Patrick Bellasi wrote:
> Currently, sg_cpu's flags are set to the value defined by the last call of
> the cpufreq_update_util()/cpufreq_update_this_cpu(); for RT/DL classes
> this corresponds to the SCHED_CPUFREQ_{RT/DL} flags always being set.
>
> When multiple CPU shares the same frequency domain it might happen that a
> CPU which executed an RT task, right before entering IDLE, has one of the
> SCHED_CPUFREQ_RT_DL flags set, permanently, until it exits IDLE.

But if it is idle, it won't be taken into account by sugov_next_freq_shared(), will it?

Thanks,
Rafael