Re: [PATCH 2/3] RT: Cache cpus_allowed weight for optimizing migration

[Steven Rostedt <rostedt@goodmis.org>]

--
> @@ -5371,7 +5372,13 @@ int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
>  		goto out;
>  	}
>
> -	p->cpus_allowed = new_mask;
> +	if (p->sched_class->set_cpus_allowed)
> +		p->sched_class->set_cpus_allowed(p, new_mask);
> +	else {
> +		p->cpus_allowed    = new_mask;
> +		p->nr_cpus_allowed = cpus_weight(new_mask);
> +	}
> +

OK, forget everything I said on this topic. I must have replied while low
on caffeine.

I see here that you do the set_cpus_allowed code if defined _ELSE_ you
just update the weight.

So you do do what I asked.

/me slaps himself to wakeup.

-- Steve

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/