Re: [PATCH 2/7] rcu: limit PREEMPT_RCU configurations

[Peter Zijlstra]

On Wed, Oct 09, 2024 at 02:16:43PM -0700, Paul E. McKenney wrote:

> Because we don't need a bunch of people surprised by this change in
> behavior.

I'm not sure what change in behaviour; Lazy is brand spanking new, it
will have new behaviour not in line with previous modes. Just put in the
help text that if you're looking for a reality closer to the old
Voluntary to use PREEMPT_RCU=n.

In reality very few people will care, because distros will be running
PREEMPT_DYNAMIC and the 3 people doing their own thing ought to be savvy
enough to deal with things, no?