Re: [RFC PATCH 4/4] kernel/workqueue: Let rescuers follow unbound wq cpumask changes

[Lai Jiangshan]

Hello, Juri

On Wed, Jan 17, 2024 at 12:20 AM Juri Lelli <juri.lelli@xxxxxxxxxx> wrote:

> +       /* rescuer needs to respect wq cpumask changes */
> +       if (ctx->wq->rescuer) {
> +               set_cpus_allowed_ptr(ctx->wq->rescuer->task, ctx->attrs->cpumask);
> +               wake_up_process(ctx->wq->rescuer->task);
> +       }
> +

What's the reason to wake up the rescuer?

I support this patch except for the wakeup:
Reviewed-by: Lai Jiangshan <jiangshanlai@xxxxxxxxx>

Thanks

Lai