Re: [PATCH 5/6] rcu/nocb: Allow empty "rcu_nocbs" kernel parameter

[Frederic Weisbecker]

On Wed, Nov 24, 2021 at 04:47:20PM -0800, Paul E. McKenney wrote:
> On Tue, Nov 23, 2021 at 01:37:07AM +0100, Frederic Weisbecker wrote:
> > If a user wants to boot without any CPU in offloaded mode initially but
> > with the possibility to offload them later using cpusets, provide a way
> > to simply pass an empty "rcu_nocbs" kernel parameter which will enforce
> > the creation of dormant nocb kthreads.
> 
> Huh.  This would have been a use for Yury Norov's "none" bitmask
> specifier.  ;-)

This must be the last missing piece before we can finally support NR_CPUS=0 ;)

> 
> I pulled this one in with the usual wordsmithing.

Thanks!