Re: [PATCH RFC v3 03/13] rcu-tasks: Add a Tasks RCU implementation for reader-marked trampolines

[Frederic Weisbecker]

Le Thu, Sep 17, 2026 at 08:40:10AM -0700, Paul E. McKenney a écrit :
> > > Trampolines that transfer control to tracing code could supply the needed
> > > cleanup call.  But last I checked, there were trampolines that transferred
> > > directly back to the original code, with no opportunity for cleaning up.
> > > 
> > > Or am I still missing a trick here?
> > 
> > You're right. So we'll indeed need to reuse the deferred qs points here.
> 
> Except this is getting a bit involved.
> 
> Don't get me wrong, if Josef is happy to take this on, far be it from me
> to stand in his way.  But if not, we should be willing to treat this
> optimization as a follow-on effort, whether by Josef or someone else.

Sure, I guess I can try the follow-on, especially if it leads to removing
all this RCU tasks black magic.

Thanks.

-- 
Frederic Weisbecker
SUSE Labs