Re: [PATCH v1 0/4] mm: Fix apply_to_pte_range() vs lazy MMU mode

Andrew Morton
2025-04-07T18:35:44Z

On Mon, 7 Apr 2025 17:11:26 +0200 Alexander Gordeev <agordeev@linux.ibm.com> wrote:

> This series is an attempt to fix the violation of lazy MMU mode context
> requirement as described for arch_enter_lazy_mmu_mode():
>
> This mode can only be entered and left under the protection of
> the page table locks for all page tables which may be modified.
>
> On s390 if I make arch_enter_lazy_mmu_mode() -> preempt_enable() and
> arch_leave_lazy_mmu_mode() -> preempt_disable() I am getting this:
>
> ...
>

Could you please reorganize this into two series? One series which
should be fast-tracked into 6.15-rcX and one series for 6.16-rc1?

And in the first series, please suggest whether its patches should be
backported into -stable and see if we can come up with suitable Fixes:
targets?

Thanks.