Commit 3c6ddb58 authored Mar 03, 2026 by Paul E. McKenney Committed by Boqun Feng Mar 05, 2026

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



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.  This commit therefore switches such refscale scenarios
to CONFIG_PREEMPT_LAZY.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun@kernel.org>
Link: https://patch.msgid.link/20260303235903.1967409-3-paulmck@kernel.org

parent 59af2d56

tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT

+2 −1

Original line number	Diff line number	Diff line
		CONFIG_SMP=y
		CONFIG_PREEMPT_NONE=y
		CONFIG_PREEMPT_LAZY=y
		CONFIG_PREEMPT_NONE=n
		CONFIG_PREEMPT_VOLUNTARY=n
		CONFIG_PREEMPT=n
		CONFIG_PREEMPT_DYNAMIC=n

tools/testing/selftests/rcutorture/configs/refscale/TINY

+2 −1

Original line number	Diff line number	Diff line
		CONFIG_SMP=n
		CONFIG_PREEMPT_NONE=y
		CONFIG_PREEMPT_LAZY=y
		CONFIG_PREEMPT_NONE=n
		CONFIG_PREEMPT_VOLUNTARY=n
		CONFIG_PREEMPT=n
		CONFIG_PREEMPT_DYNAMIC=n