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SubjectRe: [PATCH v5 3/8] hugetlb: perform vmemmap optimization on a list of pages
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> On Sep 25, 2023, at 08:39, Mike Kravetz <mike.kravetz@oracle.com> wrote:
>
> When adding hugetlb pages to the pool, we first create a list of the
> allocated pages before adding to the pool. Pass this list of pages to a
> new routine hugetlb_vmemmap_optimize_folios() for vmemmap optimization.
>
> Due to significant differences in vmemmmap initialization for bootmem
> allocated hugetlb pages, a new routine prep_and_add_bootmem_folios
> is created.
>
> We also modify the routine vmemmap_should_optimize() to check for pages
> that are already optimized. There are code paths that might request
> vmemmap optimization twice and we want to make sure this is not
> attempted.
>
> Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>

Reviewed-by: Muchun Song <songmuchun@bytedance.com>

Thanks.

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