Re: [PATCH rcu 0/18] RCU no-CBs CPU updates for v5.17

[Yury Norov]

On Wed, Dec 01, 2021 at 04:28:48PM -0800, Paul E. McKenney wrote:
> Hello!

...

> 17.	Allow empty "rcu_nocbs" kernel parameter, courtesy of Frederic
> 	Weisbecker.

...

> Note that #17 might be updated given some ongoing work by Yury Norov
> to support "none" for bitmaps, including the cpumask taken by the
> rcu_nocbs kernel-boot parameter.

Hi Paul,

This is the only work that is needed to support 'none':

https://lkml.org/lkml/2021/11/24/2642

>From the last discussion, it's not clear is this 'none' needed or not.
If needed, I'll submit the patch.

Thanks,
Yury