X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fpgtable-generic.c;h=0c8323fe6c8f610b4068a2232eb4459c23f765f6;hb=943a451a87d229ca564a27274b58eaeae35fde5d;hp=e642627da6b75d7c6cf5258a59cfde49dca7c89e;hpb=f38787f4f921222d080d976ef59210ce3c6c6cb4;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index e642627..0c8323f 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -12,8 +12,8 @@
 
 #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 /*
- * Only sets the access flags (dirty, accessed, and
- * writable). Furthermore, we know it always gets set to a "more
+ * Only sets the access flags (dirty, accessed), as well as write 
+ * permission. Furthermore, we know it always gets set to a "more
  * permissive" setting, which allows most architectures to optimize
  * this. We return whether the PTE actually changed, which in turn
  * instructs the caller to do things like update__mmu_cache.  This
@@ -27,7 +27,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
 	int changed = !pte_same(*ptep, entry);
 	if (changed) {
 		set_pte_at(vma->vm_mm, address, ptep, entry);
-		flush_tlb_page(vma, address);
+		flush_tlb_fix_spurious_fault(vma, address);
 	}
 	return changed;
 }
@@ -88,7 +88,8 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long address,
 {
 	pte_t pte;
 	pte = ptep_get_and_clear((vma)->vm_mm, address, ptep);
-	flush_tlb_page(vma, address);
+	if (pte_accessible(pte))
+		flush_tlb_page(vma, address);
 	return pte;
 }
 #endif