On Wed, Aug 18, 2021 at 01:53:28PM +0200, Peter Zijlstra wrote:
> On Wed, Aug 18, 2021 at 12:56:41PM +0200, Peter Zijlstra wrote:
> > On Wed, Aug 18, 2021 at 11:42:28AM +0100, Will Deacon wrote:
>
> > > I think the idea looks good, but perhaps we could wrap things up a bit:
> > >
> > > /* Comment about why this is useful with RT */
> > > static cpumask_t *clear_user_cpus_ptr(struct task_struct *p)
> > > {
> > > struct cpumask *user_mask = NULL;
> > >
> > > swap(user_mask, p->user_cpus_ptr);
> > > return user_mask;
> > > }
> > >
> > > void release_user_cpus_ptr(struct task_struct *p)
> > > {
> > > kfree(clear_user_cpus_ptr(p));
> > > }
> > >
> > > Then just use clear_user_cpus_ptr() in sched/core.c where we know what
> > > we're doing (well, at least one of us does!).
> >
> > OK, I'll go make it like that.
>
> Something like so then?
Looks good to me, thanks!
Will
