Re: [PATCH v3 1/4] s390/crypto: Replace cond_resched() with msleep(1)

[Heiko Carstens]

On Fri, Jul 31, 2026 at 10:40:27AM +0200, Peter Zijlstra wrote:
> On Fri, Jul 31, 2026 at 09:44:57AM +0200, Holger Dengler wrote:
> 
> > > Yes, guest migration is very likely far more disruptive than most
> > > anything else. Perhaps clarify the code comment to include some of this
> > > explanation?
> > 
> > I agree, the comment is not telling all main key points. What about the
> > following?
> > 
> > /*
> >  * Protected key expired due to relocation to another
> >  * host. The long runnning re-wrap has no asynchronous
> >  * completion notification, so polling is required.
> >  * Trigger a re-schedule of this request by returning
> >  * -ENOSPC ("hardware queue full") to the crypto engine.
> >  * To avoid immediately re-invocation of this callback,
> >  * tell scheduler to voluntarily give up the CPU here.
> >  */
> > 
> > (I would leave it up to Heiko to merge the comment in his series, or let
> > Harald/me do it in a separate patch)
> 
> Right, perhaps something like so, avoiding the endless copy/paste ?

I guess there won't be any disagreement. I'll merge your patch, and
add Holger's explanation to the commit message.

Thanks!