Re: [PATCH v7 03/15] sched/core: uclamp: Add system default clamps

Peter Zijlstra
2019-03-18T13:10:50Z

On Mon, Mar 18, 2019 at 12:18:04PM +0000, Patrick Bellasi wrote:
> On 13-Mar 21:18, Peter Zijlstra wrote:
> > On Fri, Feb 08, 2019 at 10:05:42AM +0000, Patrick Bellasi wrote:
> > > +static void uclamp_fork(struct task_struct *p)
> > > +{
> > > + unsigned int clamp_id;
> > > +
> > > + if (unlikely(!p->sched_class->uclamp_enabled))
> > > + return;
> > > +
> > > + for (clamp_id = 0; clamp_id < UCLAMP_CNT; ++clamp_id)
> > > + p->uclamp[clamp_id].active = false;
> > > +}
> >
> > Because in that case .active == false, and copy_process() will have done
> > thr right thing?
>
> Don't really get what you mean here? :/

Why don't we have to set .active=false when
!sched_class->uclamp_enabled?