[PATCH 0/4] rcu: Fix lazy-preemption regression in torture-test suites

[Paul E. McKenney]

Hello!

As of v7.0-rc1, architectures that support preemption, including x86 and
arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY.
Attempting to build kernels with these two Kconfig options results in
.config errors, which causes torture-test programs such as rcutorture
to throw false-positive errors.  This series fixes this v7.0-rc1
regression by converting these scanarios from CONFIG_PREEMPT_NONE=y or
CONFIG_PREEMPT_VOLUNTARY=y to CONFIG_PREEMPT_LAZY=y.

Those maintaining architectures not supporting preemption might wish to
run rcutorture with CONFIG_PREEMPT_NONE=y and CONFIG_PREEMPT_VOLUNTARY=y
because I no longer have access to any systems supporting these Kconfig
choices.

With all that said, the patches are as follows:

1.	rcutorture: Update due to x86 not supporting none/voluntary
	preemption.

2.	rcuscale: Update due to x86 not supporting none/voluntary
	preemption.

3.	refscale: Update due to x86 not supporting none/voluntary
	preemption.

4.	scftorture: Update due to x86 not supporting none/voluntary
	preemption.

						Thanx, Paul

------------------------------------------------------------------------

 rcu/SRCU-N         |    3 ++-
 rcu/SRCU-T         |    3 ++-
 rcu/SRCU-U         |    3 ++-
 rcu/TASKS02        |    3 ++-
 rcu/TINY01         |    3 ++-
 rcu/TINY02         |    3 ++-
 rcu/TRACE01        |    3 ++-
 rcu/TREE04         |    3 ++-
 rcu/TREE05         |    3 ++-
 rcu/TREE06         |    3 ++-
 rcu/TRIVIAL        |    3 ++-
 rcuscale/TINY      |    3 ++-
 rcuscale/TRACE01   |    3 ++-
 refscale/NOPREEMPT |    3 ++-
 refscale/TINY      |    3 ++-
 scf/NOPREEMPT      |    3 ++-
 16 files changed, 32 insertions(+), 16 deletions(-)