Messages in this thread | | | Date | Wed, 18 Aug 2021 13:19:01 +0100 | From | Will Deacon <> | Subject | Re: [PATCH v11 08/16] sched: Allow task CPU affinity to be restricted on asymmetric systems |
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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
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