[PATCH v4 0/2] ARM: Remaining PREEMPT_RT bits

this is the last batch I have to enable PREEMPT_RT on the ARM
architecture. It is just sending a signal with disabled interrupts and finally
enabling PREEMPT_RT on ARM.

Is this okay?

v3…v4: https://lore.kernel.org/all/20251110145555.2555055-1-bigeasy@linutronix.de (local)
  - Dropped applied patches
  - Rebased the remaining one on top of the recent fault handler and branch
    predictor fixes.

v2…v3: https://lore.kernel.org/all/20251103101545.760243-1-bigeasy@linutronix.de (local)
  - Collected tags.

v1…v2: https://lore.kernel.org/all/20251029155918.503060-1-bigeasy@linutronix.de (local)
  - Allow to enable jump-labels on UP. The UP build does not involve
    stop_machine(). Reworked by Arnd.

  - Instead of forbidding HAVE_GUP_FAST with HIGHPTE enabled just
    disable HIGHPTE on PREEMPT_RT. As Arnd explained, HIGHPTE is rarely
    needed.

  - Don't let ARCH_SUPPORTS_RT depend on HAVE_POSIX_CPU_TIMERS_TASK_WORK
    which in turn depends on !KVM. Since KVM has been removed from ARM
    it is sufficient to unconditionally allow ARCH_SUPPORTS_RT. Noted
    by Arnd.

Sebastian Andrzej Siewior (1):
  ARM: Allow to enable RT

Yadi.hu (1):
  ARM: mm: fault: Enable interrupts before invoking __do_user_fault()

 arch/arm/Kconfig    | 1 +
 arch/arm/mm/fault.c | 4 ++++
 2 files changed, 5 insertions(+)

-- 
2.51.0