Re: [PATCH v3 09/13] powerpc/mm: replace batch->active with in_lazy_mmu_mode()

David Hildenbrand
2025-10-23T20:02:34Z

On 15.10.25 10:27, Kevin Brodsky wrote:
> The generic lazy_mmu layer now tracks whether a task is in lazy MMU
> mode. As a result we no longer need to track whether the per-CPU TLB
> batch struct is active - we know it is if in_lazy_mmu_mode() returns
> true.

It's worth adding that disabling preemption while enabled makes sure
that we cannot reschedule while in lazy MMU mode, so when the per-CPU
TLB batch structure is active.

--
Cheers

David / dhildenb