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

David Hildenbrand david at redhat.com
Fri Oct 24 07:02:28 AEDT 2025


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



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