46 	int r, fd;  in mfd_assert_new()  local
48 	fd = sys_memfd_create(name, flags);  in mfd_assert_new()
49 	if (fd < 0) {  in mfd_assert_new()
55 	r = ftruncate(fd, sz);  in mfd_assert_new()
61 	return fd;  in mfd_assert_new()
64 static __u64 mfd_assert_get_seals(int fd)  in mfd_assert_get_seals()  argument
68 	r = fcntl(fd, F_GET_SEALS);  in mfd_assert_get_seals()
70 		printf("GET_SEALS(%d) failed: %m\n", fd);  in mfd_assert_get_seals()
77 static void mfd_assert_has_seals(int fd, __u64 seals)  in mfd_assert_has_seals()  argument
81 	s = mfd_assert_get_seals(fd);  in mfd_assert_has_seals()
84 		       (unsigned long long)seals, (unsigned long long)s, fd);  in mfd_assert_has_seals()
89 static void mfd_assert_add_seals(int fd, __u64 seals)  in mfd_assert_add_seals()  argument
94 	s = mfd_assert_get_seals(fd);  in mfd_assert_add_seals()
95 	r = fcntl(fd, F_ADD_SEALS, seals);  in mfd_assert_add_seals()
98 		       fd, (unsigned long long)s, (unsigned long long)seals);  in mfd_assert_add_seals()
103 static int mfd_busy_add_seals(int fd, __u64 seals)  in mfd_busy_add_seals()  argument
108 	r = fcntl(fd, F_GET_SEALS);  in mfd_busy_add_seals()
114 	r = fcntl(fd, F_ADD_SEALS, seals);  in mfd_busy_add_seals()
117 		       fd, (unsigned long long)s, (unsigned long long)seals);  in mfd_busy_add_seals()
124 static void *mfd_assert_mmap_shared(int fd)  in mfd_assert_mmap_shared()  argument
132 		 fd,  in mfd_assert_mmap_shared()
142 static void *mfd_assert_mmap_private(int fd)  in mfd_assert_mmap_private()  argument
150 		 fd,  in mfd_assert_mmap_private()
231 	int fd, mfd, r;  in main()  local
262 	fd = open(argv[1], O_RDONLY | O_CLOEXEC);  in main()
263 	if (fd < 0) {  in main()
289 	r = read(fd, p, mfd_def_size);  in main()
325 	close(fd);  in main()