49 static void write_bytes(char *addr, size_t length)  in write_bytes()  argument
53 	for (i = 0; i < length; i++)  in write_bytes()
57 static int read_bytes(char *addr, size_t length)  in read_bytes()  argument
62 	for (i = 0; i < length; i++)  in read_bytes()
75 	size_t length = LENGTH;  in main()  local
81 	if (hugepage_size > length)  in main()
82 		length = hugepage_size;  in main()
85 		length = atol(argv[1]) << 20;  in main()
96 	printf("Mapping %lu Mbytes\n", (unsigned long)length >> 20);  in main()
98 	addr = mmap(ADDR, length, PROTECTION, flags, -1, 0);  in main()
106 	write_bytes(addr, length);  in main()
107 	ret = read_bytes(addr, length);  in main()
110 	if (munmap(addr, length)) {  in main()