Re: [PATCH mm-unstable v1 2/5] mm: introduce is_pmd_order helper

[Zi Yan]

On 11 Feb 2026, at 21:18, Nico Pache wrote:

> In order to add mTHP support to khugepaged, we will often be checking if a
> given order is (or is not) a PMD order. Some places in the kernel already
> use this check, so lets create a simple helper function to keep the code
> clean and readable.
>
> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
> Signed-off-by: Nico Pache <npache@xxxxxxxxxx>
>
> arches#    pick b3ace8be204f # mm/khugepaged: rename hpage_collapse_* to collapse_*
> ---
>  include/linux/huge_mm.h | 5 +++++
>  mm/huge_memory.c        | 2 +-
>  mm/khugepaged.c         | 4 ++--
>  mm/mempolicy.c          | 2 +-
>  mm/page_alloc.c         | 2 +-
>  5 files changed, 10 insertions(+), 5 deletions(-)
>
LGTM.

Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>

Best Regards,
Yan, Zi