On Sat, 11 Jan 2020 10:18:05 +0000 Li Xinhai <lixinhai.lxh@xxxxxxxxx> wrote: > When check_pte, pfn of normal, hugetlbfs and THP page need be compared. > The current implementation apply comparison as > - normal 4K page: page_pfn <= pfn < page_pfn + 1 > - hugetlbfs page: page_pfn <= pfn < page_pfn + HPAGE_PMD_NR > - THP page: page_pfn <= pfn < page_pfn + HPAGE_PMD_NR > in pfn_in_hpage. For hugetlbfs page, it should be > page_pfn == pfn Does this have any runtime effects? > Now, change pfn_in_hpage to pfn_is_match to highlight that comparison > is not only for THP and explicitly compare for these cases.
