Re: [PATCH v8 12/14] treewide: introduce arch_has_pmd_leaves()

["Zi Yan" <ziy@nvidia.com>]

On Thu Sep 17, 2026 at 9:45 PM EDT, Luiz Capitulino wrote:
> Now that all the has_transparent_hugepage() callers have been converted
> to pgtable_has_pmd_leaves(), this commit does two things:
>
> 1. Rename has_transparent_hugepage() arch implementations to
>    arch_has_pmd_leaves(), since that's what the helper checks for
>
> 2. Introduce the default implementation of arch_has_pmd_leaves() as
>    IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE). This means that if
>    the arch doesn't implement arch_has_pmd_leaves() we default to checking
>    CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE as a way to determine if
>    PMD-sized pages are supported
>
> Note that arch_has_pmd_leaves() is supposed to be called only by
> pgtable_leaf_support_init(). The remaining exception is hugepage_init()
> which will be converted in a future commit.
>
> Signed-off-by: Luiz Capitulino <luizcap@redhat.com>
> ---
>  arch/mips/include/asm/pgtable.h               |  4 ++--
>  arch/mips/mm/pgtable.c                        |  6 +++---
>  arch/powerpc/include/asm/book3s/64/hash-4k.h  |  2 +-
>  arch/powerpc/include/asm/book3s/64/hash-64k.h |  2 +-
>  arch/powerpc/include/asm/book3s/64/pgtable.h  | 10 +++++-----
>  arch/powerpc/include/asm/book3s/64/radix.h    |  2 +-
>  arch/powerpc/mm/book3s64/hash_pgtable.c       |  4 ++--
>  arch/s390/include/asm/pgtable.h               |  4 ++--
>  arch/x86/include/asm/pgtable.h                |  4 ++--
>  include/linux/pgtable.h                       |  4 ++--
>  mm/huge_memory.c                              |  2 +-
>  mm/memory.c                                   |  2 +-
>  12 files changed, 23 insertions(+), 23 deletions(-)
>

Acked-by: Zi Yan <ziy@nvidia.com>


-- 
Best Regards,
Yan, Zi