Re: [PATCH v6 03/14] powerpc/mm: implement arch_flush_lazy_mmu_mode()

Ritesh Harjani
2025-12-16T05:16:56Z

Kevin Brodsky <kevin.brodsky@arm.com> writes:

> Upcoming changes to the lazy_mmu API will cause
> arch_flush_lazy_mmu_mode() to be called when leaving a nested
> lazy_mmu section.
>
> Move the relevant logic from arch_leave_lazy_mmu_mode() to
> arch_flush_lazy_mmu_mode() and have the former call the latter. The
> radix_enabled() check is required in both as
> arch_flush_lazy_mmu_mode() will be called directly from the generic
> layer in a subsequent patch.
>
> Note: the additional this_cpu_ptr() and radix_enabled() calls on the
> arch_leave_lazy_mmu_mode() path will be removed in a subsequent
> patch.
>
> Acked-by: David Hildenbrand <david@redhat.com>
> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
> Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
> ---
> .../powerpc/include/asm/book3s/64/tlbflush-hash.h | 15 ++++++++++++---
> 1 file changed, 12 insertions(+), 3 deletions(-)

Sorry I was away for a while.

Thanks for taking care of the radix path as we had discussed previously
here [1].

[1]: https://lore.kernel.org/all/87jz044xn4.ritesh.list@gmail.com/

The change looks good to me. So, please feel free to add:

Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>