On Tue, Aug 28, 2018 at 02:53:11PM +0100, Patrick Bellasi wrote: > diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h > index 72df2dc779bc..513608ae4908 100644 > --- a/kernel/sched/sched.h > +++ b/kernel/sched/sched.h > @@ -764,6 +764,50 @@ extern void rto_push_irq_work_func(struct irq_work > *work); > #endif > #endif /* CONFIG_SMP */ > > +#ifdef CONFIG_UCLAMP_TASK > +/** > + * struct uclamp_group - Utilization clamp Group > + * @value: utilization clamp value for tasks on this clamp group > + * @tasks: number of RUNNABLE tasks on this clamp group > + * > + * Keep track of how many tasks are RUNNABLE for a given utilization > + * clamp value. > + */ > +struct uclamp_group { > + int value; > + int tasks; > +};
We could use bit fields again to compress in 10:22 bits I suppose. 4M tasks is quite a lot to have runnable on a single CPU ;-)