From a3dece6d69b0ad21b64104dff508c67a1a1f14dd Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Date: Fri, 29 Apr 2016 23:26:22 +1000 Subject: [PATCH] powerpc/radix: Update MMU cache With radix there is no MMU cache. Hence we don't need to do anything in update_mmu_cache(). Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/mm/mem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index ac79dbde1015b..89677884ecc85 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -499,6 +499,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, * called with either mm->page_table_lock held or ptl lock held */ unsigned long access = 0, trap; + if (radix_enabled()) + return; /* We only want HPTEs for linux PTEs that have _PAGE_ACCESSED set */ if (!pte_young(*ptep) || address >= TASK_SIZE) -- 2.30.2