[PATCH] um, pkeys: give UML an arch_vma_access_permitted()

From: Dave Hansen
Date: Thu Feb 18 2016 - 13:36:14 EST



From: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>

UML has a special mmu_context.h and needs updates whenever the generic one
is updated. The original pkeys patches missed this. This fixes it up.

Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
---

b/arch/um/include/asm/mmu_context.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff -puN arch/um/include/asm/mmu_context.h~pkeys-fix-um-arch_vma_access_permitted arch/um/include/asm/mmu_context.h
--- a/arch/um/include/asm/mmu_context.h~pkeys-fix-um-arch_vma_access_permitted 2016-02-18 10:19:17.675287570 -0800
+++ b/arch/um/include/asm/mmu_context.h 2016-02-18 10:20:09.214627363 -0800
@@ -27,6 +27,20 @@ static inline void arch_bprm_mm_init(str
struct vm_area_struct *vma)
{
}
+
+static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
+ bool write, bool execute, bool foreign)
+{
+ /* by default, allow everything */
+ return true;
+}
+
+static inline bool arch_pte_access_permitted(pte_t pte, bool write)
+{
+ /* by default, allow everything */
+ return true;
+}
+
/*
* end asm-generic/mm_hooks.h functions
*/
_