367 void wp_range(int ufd, __u64 start, __u64 len, bool wp)  in wp_range()  argument
377 	if (ioctl(ufd, UFFDIO_WRITEPROTECT, &prms))  in wp_range()
381 static void continue_range(int ufd, __u64 start, __u64 len, bool wp)  in continue_range()  argument
392 	if (ioctl(ufd, UFFDIO_CONTINUE, &req))  in continue_range()
402 	ret = ioctl(ufd, UFFDIO_CONTINUE, &req);  in continue_range()
408 int uffd_read_msg(int ufd, struct uffd_msg *msg)  in uffd_read_msg()  argument
540 			uffd = msg.arg.fork.ufd;  in uffd_poll_thread()
560 static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,  in retry_copy_page()  argument
566 	if (ioctl(ufd, UFFDIO_COPY, uffdio_copy)) {  in retry_copy_page()
577 static void wake_range(int ufd, unsigned long addr, unsigned long len)  in wake_range()  argument
584 	if (ioctl(ufd, UFFDIO_WAKE, &uffdio_wake))  in wake_range()
589 int __copy_page(int ufd, unsigned long offset, bool retry, bool wp)  in __copy_page()  argument
603 	if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) {  in __copy_page()
608 		wake_range(ufd, uffdio_copy.dst, page_size);  in __copy_page()
614 			retry_copy_page(ufd, &uffdio_copy, offset);  in __copy_page()
621 int copy_page(int ufd, unsigned long offset, bool wp)  in copy_page()  argument
623 	return __copy_page(ufd, offset, false, wp);  in copy_page()