8     int pagesize = getpagesize();  in test_anonymous()  local
12     page = mmap(NULL, pagesize, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);  in test_anonymous()
16     ret = mprotect(page, pagesize, PROT_READ | PROT_WRITE);  in test_anonymous()
21     ret = madvise(page, pagesize, MADV_DONTNEED);  in test_anonymous()
25     ret = munmap(page, pagesize);  in test_anonymous()
32     int pagesize = getpagesize();  in test_file()  local
45     ret = ftruncate(fd, pagesize);  in test_file()
47     page = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE, fd, 0);  in test_file()
51     ret = mprotect(page, pagesize, PROT_READ | PROT_WRITE);  in test_file()
56     ret = madvise(page, pagesize, MADV_DONTNEED);  in test_file()
60     ret = munmap(page, pagesize);  in test_file()