Re: [PATCH v10 3/5] sched: Enforce user requested affinity

[Waiman Long]

On 10/7/22 06:01, Peter Zijlstra wrote:
> On Thu, Sep 22, 2022 at 02:00:39PM -0400, Waiman Long wrote:
> > @@ -9647,6 +9656,9 @@ void __init sched_init(void)
> >   			cpumask_size(), GFP_KERNEL, cpu_to_node(i));
> >   		per_cpu(select_rq_mask, i) = (cpumask_var_t)kzalloc_node(
> >   			cpumask_size(), GFP_KERNEL, cpu_to_node(i));
> > +		per_cpu(runqueues.scratch_mask, i) =
> > +			(cpumask_var_t)kzalloc_node(cpumask_size(),
> > +						    GFP_KERNEL, cpu_to_node(i));
> >   	}
> >   #endif /* CONFIG_CPUMASK_OFFSTACK */
> >   
> That doesn't actually apply; I've made it:
>
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -9748,6 +9748,7 @@ void __init sched_init(void)
>   
>   		rq->core_cookie = 0UL;
>   #endif
> +		zalloc_cpumask_var_node(&per_cpu(runqueues.scratch_mask, i), GFP_KERNEL, cpu_to_node(i));
>   	}
>   
>   	set_load_weight(&init_task, false);
Sorry, I should have worked on the latest tip tree instead.

Thanks,
Longman