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