Re: [PATCH -next v1 10/16] rcu-tasks: Document that RCU Tasks Trace grace periods now imply RCU grace periods

[Frederic Weisbecker]

Le Wed, Mar 18, 2026 at 12:04:23PM +0100, Frederic Weisbecker a écrit :
> Le Tue, Mar 17, 2026 at 05:22:11PM -0400, Joel Fernandes a écrit :
> > From: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
> > 
> > Now that RCU Tasks Trace is implemented in terms of SRCU-fast, the fact
> > that each SRCU-fast grace period implies at least two RCU grace periods
> 
> two or one?
> 
> AFAIU srcu_readers_active_idx_check() it's only one?

But as Paul just told me offline, we flip the idx so it's two. Sorry for the noise.

Thanks.

-- 
Frederic Weisbecker
SUSE Labs