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s390 fixes for final 7.1

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- s390 selects GENERIC_LOCKBREAK when PREEMPT is enabled to tackle
   an old compile error that no longer exists. Since recently PREEMPT
   is always enabled, which causes massive performance regressions.
   Remove GENERIC_LOCKBREAK from s390 Kconfig to fix the degradation.
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Merge tag 's390-7.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fix from Alexander Gordeev:

 - s390 selects GENERIC_LOCKBREAK when PREEMPT is enabled to tackle an
   old compile error that no longer exists. Since recently PREEMPT is
   always enabled, this LOCKBREAK config causes massive performance
   regressions.

   Remove GENERIC_LOCKBREAK from s390 Kconfig to fix the degradation.

* tag 's390-7.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: Remove GENERIC_LOCKBREAK Kconfig option
This commit is contained in:
Linus Torvalds 2026-06-11 10:30:37 -07:00
commit 2b414a95b8
1 changed files with 0 additions and 3 deletions
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3
arch/s390/Kconfig
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@ -29,9 +29,6 @@ config GENERIC_BUG
config GENERIC_BUG_RELATIVE_POINTERS
def_bool y
config GENERIC_LOCKBREAK
def_bool y if PREEMPTION
config AUDIT_ARCH
def_bool y