45 	int r, fd;  in mfd_assert_new()  local
47 	fd = sys_memfd_create(name, flags);  in mfd_assert_new()
48 	if (fd < 0) {  in mfd_assert_new()
54 	r = ftruncate(fd, sz);  in mfd_assert_new()
60 	return fd;  in mfd_assert_new()
63 static __u64 mfd_assert_get_seals(int fd)  in mfd_assert_get_seals()  argument
67 	r = fcntl(fd, F_GET_SEALS);  in mfd_assert_get_seals()
69 		printf("GET_SEALS(%d) failed: %m\n", fd);  in mfd_assert_get_seals()
76 static void mfd_assert_has_seals(int fd, __u64 seals)  in mfd_assert_has_seals()  argument
80 	s = mfd_assert_get_seals(fd);  in mfd_assert_has_seals()
83 		       (unsigned long long)seals, (unsigned long long)s, fd);  in mfd_assert_has_seals()
88 static void mfd_assert_add_seals(int fd, __u64 seals)  in mfd_assert_add_seals()  argument
93 	s = mfd_assert_get_seals(fd);  in mfd_assert_add_seals()
94 	r = fcntl(fd, F_ADD_SEALS, seals);  in mfd_assert_add_seals()
97 		       fd, (unsigned long long)s, (unsigned long long)seals);  in mfd_assert_add_seals()
102 static int mfd_busy_add_seals(int fd, __u64 seals)  in mfd_busy_add_seals()  argument
107 	r = fcntl(fd, F_GET_SEALS);  in mfd_busy_add_seals()
113 	r = fcntl(fd, F_ADD_SEALS, seals);  in mfd_busy_add_seals()
116 		       fd, (unsigned long long)s, (unsigned long long)seals);  in mfd_busy_add_seals()
123 static void *mfd_assert_mmap_shared(int fd)  in mfd_assert_mmap_shared()  argument
131 		 fd,  in mfd_assert_mmap_shared()
141 static void *mfd_assert_mmap_private(int fd)  in mfd_assert_mmap_private()  argument
149 		 fd,  in mfd_assert_mmap_private()
230 	int fd, mfd, r;  in main()  local
261 	fd = open(argv[1], O_RDONLY | O_CLOEXEC);  in main()
262 	if (fd < 0) {  in main()
288 	r = read(fd, p, mfd_def_size);  in main()
324 	close(fd);  in main()