Re: [PATCH tip/core/rcu 0/2] v2 Add callback-free CPUs

Peter Zijlstra
2012-10-31T07:26:11Z

On Tue, 2012-10-30 at 20:45 -0700, Paul E. McKenney wrote:
> This commit therefore adds the ability
> for selected CPUs ("rcu_nocbs=" boot parameter) to have their
> callbacks
> offloaded to kthreads, inspired by Joe Korty's and Jim Houston's JRCU.
> If the "rcu_nocb_poll" boot parameter is also specified, these
> kthreads
> will do polling, removing the need for the offloaded CPUs to do
> wakeups.

How much pain to make that dynamically configurable?