4561 	struct uffdio_move uffdio_move;  in userfaultfd_move()  local
4562 	struct uffdio_move __user *user_uffdio_move;  in userfaultfd_move()
4566 	user_uffdio_move = (struct uffdio_move __user *) arg;  in userfaultfd_move()
4575 	if (copy_from_user(&uffdio_move, user_uffdio_move,  in userfaultfd_move()
4577 			   sizeof(uffdio_move)-sizeof(__s64)))  in userfaultfd_move()
4584 	ret = validate_range(mm, uffdio_move.dst, uffdio_move.len);  in userfaultfd_move()
4588 	ret = validate_range(mm, uffdio_move.src, uffdio_move.len);  in userfaultfd_move()
4592 	if (uffdio_move.mode & ~(UFFDIO_MOVE_MODE_ALLOW_SRC_HOLES|  in userfaultfd_move()
4597 		ret = move_pages(ctx, uffdio_move.dst, uffdio_move.src,  in userfaultfd_move()
4598 				 uffdio_move.len, uffdio_move.mode);  in userfaultfd_move()
4612 	if (!(uffdio_move.mode & UFFDIO_MOVE_MODE_DONTWAKE)) {  in userfaultfd_move()
4613 		range.start = uffdio_move.dst;  in userfaultfd_move()
4616 	ret = range.len == uffdio_move.len ? 0 : -EAGAIN;  in userfaultfd_move()