Re: [RFC 1/2] softirq: Defer net rx/tx processing to ksoftirqd context

[Linus Torvalds]

On Wed, Jan 10, 2018 at 7:22 PM, Frederic Weisbecker
<frederic@xxxxxxxxxx> wrote:
>
> Makes sense, but I think you need to keep the TASK_RUNNING check.

Yes, good point.

> So perhaps it should be:
>
> -       return tsk && (tsk->state == TASK_RUNNING);
> +       return (tsk == current) && (tsk->state == TASK_RUNNING);

Looks good to me - definitely worth trying.

Maybe that weakens the thing so much that it doesn't actually help the
UDP packet storm case?

And maybe it's not sufficient for the dvb issue.

But I think it's worth at least testing. Maybe it makes neither side
entirely happy, but maybe it might be a good halfway point?

               Linus