rcu-tasks: Further refactor RCU-tasks to allow adding more variants

This commit refactors RCU tasks to allow variants to be added.  These
variants will share the current Tasks-RCU tasklist scan and the holdout
list processing.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2020-03-04 17:31:43 -08:00
commit e4fe5dd6f2