xen/gntdev: Grant maps should not be subject to NUMA balancing

[firefly-linux-kernel-4.4.55.git] / drivers / xen / gntdev.c

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 0dbb222daaf1c694b1f073f3e206f755f5f77cc6..1be5dd048622f6c8c4f9aa805514b9fd5b5c5d7b 100644 (file)
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -433,7 +433,7 @@ static struct page *gntdev_vma_find_special_page(struct vm_area_struct *vma,
        return map->pages[(addr - map->pages_vm_start) >> PAGE_SHIFT];
 }
 
-static struct vm_operations_struct gntdev_vmops = {
+static const struct vm_operations_struct gntdev_vmops = {
        .open = gntdev_vma_open,
        .close = gntdev_vma_close,
        .find_special_page = gntdev_vma_find_special_page,
@@ -804,7 +804,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 
        vma->vm_ops = &gntdev_vmops;
 
-       vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+       vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
 
        if (use_ptemod)
                vma->vm_flags |= VM_DONTCOPY;