1250 	struct vma_iterator vmi;  in userfaultfd_register()  local
1295 	vma_iter_init(&vmi, mm, start);  in userfaultfd_register()
1296 	vma = vma_find(&vmi, end);  in userfaultfd_register()
1374 	} for_each_vma_range(vmi, cur, end);  in userfaultfd_register()
1422 	struct vma_iterator vmi;  in userfaultfd_unregister()  local
1443 	vma_iter_init(&vmi, mm, start);  in userfaultfd_unregister()
1444 	vma = vma_find(&vmi, end);  in userfaultfd_unregister()
1481 	} for_each_vma_range(vmi, cur, end);  in userfaultfd_unregister()
1484 	vma_iter_set(&vmi, start);  in userfaultfd_unregister()
1485 	prev = vma_prev(&vmi);  in userfaultfd_unregister()
1490 	for_each_vma_range(vmi, vma, end) {  in userfaultfd_unregister()
1521 		vma = userfaultfd_clear_vma(&vmi, prev, vma,  in userfaultfd_unregister()