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RCU fixes for v7.0

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Fix a regression in RCU torture test pre-defined scenarios caused by
 commit 7dadeaa6e8 ("sched: Further restrict the preemption modes")
 which limits PREEMPT_NONE to architectures that do not support
 preemption at all and PREEMPT_VOLUNTARY to those architectures that do
 not yet have PREEMPT_LAZY support. Since major architectures (e.g. x86
 and arm64) no longer support CONFIG_PREEMPT_NONE and
 CONFIG_PREEMPT_VOLUNTARY, using them in rcutorture, rcuscale, refscale,
 and scftorture pre-defined scenarios causes config checking errors.
 Hence switch these kconfigs to PREEMPT_LAZY.
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Merge tag 'rcu-fixes.v7.0-20260307a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU selftest fixes from Boqun Feng:
 "Fix a regression in RCU torture test pre-defined scenarios caused by
  commit 7dadeaa6e8 ("sched: Further restrict the preemption modes")
  which limits PREEMPT_NONE to architectures that do not support
  preemption at all and PREEMPT_VOLUNTARY to those architectures that do
  not yet have PREEMPT_LAZY support.

  Since major architectures (e.g. x86 and arm64) no longer support
  CONFIG_PREEMPT_NONE and CONFIG_PREEMPT_VOLUNTARY, using them in
  rcutorture, rcuscale, refscale, and scftorture pre-defined scenarios
  causes config checking errors.

  Switch these kconfigs to PREEMPT_LAZY"

* tag 'rcu-fixes.v7.0-20260307a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux:
  scftorture: Update due to x86 not supporting none/voluntary preemption
  refscale: Update due to x86 not supporting none/voluntary preemption
  rcuscale: Update due to x86 not supporting none/voluntary preemption
  rcutorture: Update due to x86 not supporting none/voluntary preemption
This commit is contained in:
Linus Torvalds 2026-03-07 11:56:55 -08:00
commit 03dcad79ee
17 changed files with 39 additions and 18 deletions
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