[PATCH 1/3] arch/powerpc/hugetlb: Use pte_access_permitted for hugetlb access check
From: Aneesh Kumar K.V <hidden>
Date: 2017-12-04 02:19:29
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
No functional change in this patch. This update gup_hugepte to use the helper. This will help later when we add memory keys. Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/mm/hugetlbpage.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index a9b9083c5e49..c7e5afe5e118 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c@@ -855,9 +855,7 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr, pte = READ_ONCE(*ptep); - if (!pte_present(pte) || !pte_read(pte)) - return 0; - if (write && !pte_write(pte)) + if (!pte_access_permitted(pte, write)) return 0; /* hugepages are never "special" */
--
2.14.3