Re: Question on threaded handlers for managed interrupts

[John Garry]

Hi Thomas,

On 23/04/2021 14:01, Thomas Gleixner wrote:
> On Fri, Apr 23 2021 at 12:50, Thomas Gleixner wrote:
> > On Thu, Apr 22 2021 at 17:10, John Garry wrote:
> > OTOH, the way how you splitted the handling into hard/thread context
> > provides already the base for this.
> >
> > The missing piece is infrastructure at the irq/scheduler core level to
> > handle this transparently.
> >
> > I have some horrible ideas how to solve that, but I'm sure the scheduler
> > wizards can come up with a reasonable and generic solution.
> So one thing I forgot to ask is:
>
> Is the thread simply stuck in the while() loop forever or is
> this just an endless hardirq/thread/hardirq/thread stream?

The thread will process all available completions and then return. I 
added some debug there, and at most we handle maybe max 150-300 
completions per thread run.

So I figure that we have the endless hardirq/thread/hardirq/thread stream.

Thanks,
John