Re: [PATCH tip/core/rcu 0/5] Provide SRCU polling grace-period interfaces

[Paul E. McKenney]

On Fri, Nov 20, 2020 at 08:05:53PM -0500, Steven Rostedt wrote:
> On Fri, 20 Nov 2020 16:58:09 -0800
> "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote:
> 
> > 	OK, maybe no one needs it, but rcutorture does need it, so here
> > 	it is anyway.
> 
> Ah, so there was a use case. I was scratching my head a bit before
> reading this ;-)

Indeed, the overhead of start_poll_synchronize_srcu() is a killer for
some parts of rcutorture, plus those parts don't care if no grace period
gets started...

							Thanx, Paul