> On Aug 1, 2023, at 10:31, Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> 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 <wangkefeng.wang@xxxxxxxxxx> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
