On Sun, Mar 13, 2016 at 10:22:09PM -0700, Michael Turquette wrote:
> +++ b/include/linux/sched.h
> @@ -2362,15 +2362,25 @@ extern u64 scheduler_tick_max_deferment(void);
> static inline bool sched_can_stop_tick(void) { return false; }
> #endif
>
> +enum sched_class_util {
> + cfs_util,
> + rt_util,
> + dl_util,
> + nr_util_types,
> +};
> +
> #ifdef CONFIG_CPU_FREQ
> struct freq_update_hook {
> + void (*func)(struct freq_update_hook *hook,
> + enum sched_class_util sched_class, u64 time,
> unsigned long util, unsigned long max);
> };
>
> void cpufreq_set_freq_update_hook(int cpu, struct freq_update_hook *hook,
> + void (*func)(struct freq_update_hook *hook,
> + enum sched_class_util sched_class,
> + u64 time, unsigned long util,
> + unsigned long max));
Have you looked at the asm that generated? At some point you'll start
spilling on the stack and it'll be a god awful mess.
