Re: [PATCH 09/12] mm: hugetlb_vmemmap: make vmemmap optimization folio-oriented

[Qi Zheng]

On 10/20/26 7:58 PM, Muchun Song wrote:
> Vmemmap optimization operates on one folio at a time, but the current
> interface exposes a raw address range and requires the HugeTLB caller to
> prepare part of the operation.  This splits the common mechanism across
> layers and obscures its natural unit of work.
>
> Make the folio the unit of vmemmap optimization and move the common
> mechanics behind a folio-oriented interface.  This keeps HugeTLB-specific]

This makes the interface much more solid. Nice cleanup!

> eligibility and state in the caller while making the remapping code
> applicable to any eligible folio.
>
> No functional change intended.
>
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> ---
>   mm/hugetlb_vmemmap.c | 67 ++++++++++++++++++++------------------------
>   1 file changed, 31 insertions(+), 36 deletions(-)

Reviewed-by: Qi Zheng <qi.zheng@xxxxxxxxx>

Thanks,
Qi