Commit 5fa5b16b authored Dec 04, 2017 by Aneesh Kumar K.V Committed by Michael Ellerman Dec 22, 2017

powerpc/mm/hugetlb: Use pte_access_permitted for hugetlb access check



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 <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 7e436355

arch/powerpc/mm/hugetlbpage.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -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" */