Re: [RFC PATCH v2 09/47] hugetlb: make huge_pte_lockptr take an explicit shift argument.

[Mike Kravetz]

On 10/21/22 16:36, James Houghton wrote:
> This is needed to handle PTL locking with high-granularity mapping. We
> won't always be using the PMD-level PTL even if we're using the 2M
> hugepage hstate. It's possible that we're dealing with 4K PTEs, in which
> case, we need to lock the PTL for the 4K PTE.
> 
> Signed-off-by: James Houghton <jthoughton@xxxxxxxxxx>
> ---
>  arch/powerpc/mm/pgtable.c | 3 ++-
>  include/linux/hugetlb.h   | 9 ++++-----
>  mm/hugetlb.c              | 7 ++++---
>  mm/migrate.c              | 3 ++-
>  4 files changed, 12 insertions(+), 10 deletions(-)

Straight forward substitution,

Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>

-- 
Mike Kravetz