[GIT PULL] locking fixes

[Ingo Molnar]

Linus,

Please pull the latest locking/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-urgent-2026-09-06

for you to fetch changes up to a3b8d46fe401cba3a5c46dea610e6eb3dc15370e:

Misc locking fixes:

 - Fix a softirq processing delay bug in local_interrupt_disable(),
   which should mostly only affect the Rust runtime (Boqun Feng)

 - Remove the hardirq_disable_count() function which caused the
   previous bug and is now unused & unnecessary (Boqun Feng)

 - lockdep: Invalidate stale class_cache entries for zapped classes
   (Eric Dumazet)

 - Fix rt_mutex specific futex scheduling helpers
   (Sebastian Andrzej Siewior)

 - Fix rcuwait use-after-free race during futex requeue PI (Yao Kai)

 Thanks,

	Ingo

------------------>
Boqun Feng (2):
      interrupt: Disable interrupt before modifying hardirq_disable counter
      preempt: Remove hardirq_disable_count()

Eric Dumazet (1):
      locking/lockdep: Invalidate stale class_cache entries for zapped classes

Sebastian Andrzej Siewior (1):
      futex: Provide rt_mutex_.*_schedule() equivalents for futex scheduling

Yao Kai (1):
      futex: Prevent rcuwait use-after-free during requeue PI


 include/linux/interrupt_rc.h | 22 +++++++++----------
 include/linux/preempt.h      |  4 ----
 include/linux/sched/rt.h     |  2 ++
 kernel/futex/pi.c            | 16 +++-----------
 kernel/futex/requeue.c       | 12 +++++++++--
 kernel/locking/lockdep.c     | 50 +++++++++++++++++++++++++++++++++++++-------
 kernel/locking/rtmutex_api.c |  2 ++
 kernel/sched/core.c          | 16 ++++++++++++++
 kernel/softirq.c             | 17 ++++-----------
 9 files changed, 90 insertions(+), 51 deletions(-)