Messages in this thread Patch in this message | | | From | Peter Xu <> | Subject | [PATCH v5 16/26] mm/hugetlb: Introduce huge pte version of uffd-wp helpers | Date | Thu, 15 Jul 2021 16:16:18 -0400 |
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They will be used in the follow up patches to either check/set/clear uffd-wp bit of a huge pte.
So far it reuses all the small pte helpers. Archs can overwrite these versions when necessary (with __HAVE_ARCH_HUGE_PTE_UFFD_WP* macros) in the future.
Signed-off-by: Peter Xu <peterx@redhat.com> --- include/asm-generic/hugetlb.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h index 8e1e6244a89d..c45b9deb41ff 100644 --- a/include/asm-generic/hugetlb.h +++ b/include/asm-generic/hugetlb.h @@ -32,6 +32,21 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot) return pte_modify(pte, newprot); } +static inline pte_t huge_pte_mkuffd_wp(pte_t pte) +{ + return pte_mkuffd_wp(pte); +} + +static inline pte_t huge_pte_clear_uffd_wp(pte_t pte) +{ + return pte_clear_uffd_wp(pte); +} + +static inline int huge_pte_uffd_wp(pte_t pte) +{ + return pte_uffd_wp(pte); +} + #ifndef __HAVE_ARCH_HUGE_PTE_CLEAR static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz) -- 2.31.1
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