Re: [PATCH v3 1/6] cpufreq: schedutil: reset sg_cpus's flags at IDLE enter

From: Viresh Kumar
Date: Wed Dec 13 2017 - 04:06:39 EST


On 12-12-17, 15:16, Patrick Bellasi wrote:
> Since you are already changing some flags position, maybe we can have
> a better organization by using lower flags for "general bits" and
> higher ones for class specific, i.e.
>
> #define SCHED_CPUFREQ_CLEAR (1U << 0)
> #define SCHED_CPUFREQ_IOWAIT (1U << 1)
>
> #define SCHED_CPUFREQ_CFS (1U << 8)
> #define SCHED_CPUFREQ_RT (1U << 9)
> #define SCHED_CPUFREQ_DL (1U << 10)

Since we aren't normally going to add any more of class specific ones, I would
like to keep them as 0, 1 and 2. And using the top most bit for CLEAR seems
better to me somehow, just like the signed bit for 32 bit integers.

--
viresh