> On Aug 1, 2023, at 10:31, Kefeng Wang <[email protected]> wrote:
>
> It is better to use huge page size instead of PAGE_SIZE
> for stride when flush hugepage, which reduces the loop
> in __flush_tlb_range().
>
> Let's support arch's flush_hugetlb_tlb_range(), which is
> used in hugetlb_unshare_all_pmds(), move_hugetlb_page_tables()
> and hugetlb_change_protection() for now.
>
> Note, for hugepages based on contiguous bit, it has to be
> invalidated individually since the contiguous PTE bit is
> just a hint, the hardware may or may not take it into account.
>
> Signed-off-by: Kefeng Wang <[email protected]>
Reviewed-by: Muchun Song <[email protected]>