1350 typedef void (*non_anon_test_fn)(char *mem, const char *smem, size_t size);
1352 static void test_cow(char *mem, const char *smem, size_t size)  in test_cow()  argument
1357 	memcpy(old, smem, size);  in test_cow()
1363 	ksft_test_result(!memcmp(smem, old, size),  in test_cow()
1368 static void test_ro_pin(char *mem, const char *smem, size_t size)  in test_ro_pin()  argument
1373 static void test_ro_fast_pin(char *mem, const char *smem, size_t size)  in test_ro_fast_pin()  argument
1380 	char *mem, *smem, tmp;  in run_with_zeropage()  local
1391 	smem = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);  in run_with_zeropage()
1398 	tmp = *mem + *smem;  in run_with_zeropage()
1401 	fn(mem, smem, pagesize);  in run_with_zeropage()
1404 	if (smem != MAP_FAILED)  in run_with_zeropage()
1405 		munmap(smem, pagesize);  in run_with_zeropage()
1410 	char *mem, *smem, *mmap_mem, *mmap_smem, tmp;  in run_with_huge_zeropage()  local
1438 	smem = (char *)(((uintptr_t)mmap_smem + thpsize) & ~(thpsize - 1));  in run_with_huge_zeropage()
1441 	ret |= madvise(smem, thpsize, MADV_HUGEPAGE);  in run_with_huge_zeropage()
1452 	tmp = *mem + *smem;  in run_with_huge_zeropage()
1455 	    !pagemap_is_populated(pagemap_fd, smem + pagesize)) {  in run_with_huge_zeropage()
1460 	fn(mem, smem, thpsize);  in run_with_huge_zeropage()
1469 	char *mem, *smem, tmp;  in run_with_memfd()  local
1492 	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_memfd()
1499 	tmp = *mem + *smem;  in run_with_memfd()
1502 	fn(mem, smem, pagesize);  in run_with_memfd()
1505 	if (smem != MAP_FAILED)  in run_with_memfd()
1506 		munmap(smem, pagesize);  in run_with_memfd()
1513 	char *mem, *smem, tmp;  in run_with_tmpfile()  local
1543 	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_tmpfile()
1550 	tmp = *mem + *smem;  in run_with_tmpfile()
1553 	fn(mem, smem, pagesize);  in run_with_tmpfile()
1556 	if (smem != MAP_FAILED)  in run_with_tmpfile()
1557 		munmap(smem, pagesize);  in run_with_tmpfile()
1566 	char *mem, *smem, tmp;  in run_with_memfd_hugetlb()  local
1593 	smem = mmap(NULL, hugetlbsize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_memfd_hugetlb()
1600 	tmp = *mem + *smem;  in run_with_memfd_hugetlb()
1603 	fn(mem, smem, hugetlbsize);  in run_with_memfd_hugetlb()
1607 		munmap(smem, hugetlbsize);  in run_with_memfd_hugetlb()