1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index cfe063372aa4..fa6355a97081 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -564,7 +564,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 
         vma->vm_ops = &gntdev_vmops;
 
-        vma->vm_flags |= VM_RESERVED|VM_DONTCOPY|VM_DONTEXPAND;
+        vma->vm_flags |= VM_RESERVED|VM_DONTCOPY|VM_DONTEXPAND|VM_PFNMAP;
 
         vma->vm_private_data = map;
         map->vma = vma;