1407 typedef void (*non_anon_test_fn)(char *mem, const char *smem, size_t size);
1409 static void test_cow(char *mem, const char *smem, size_t size)  in test_cow()  argument
1414 	memcpy(old, smem, size);  in test_cow()
1420 	ksft_test_result(!memcmp(smem, old, size),  in test_cow()
1425 static void test_ro_pin(char *mem, const char *smem, size_t size)  in test_ro_pin()  argument
1430 static void test_ro_fast_pin(char *mem, const char *smem, size_t size)  in test_ro_fast_pin()  argument
1437 	char *mem, *smem, tmp;  in run_with_zeropage()  local
1448 	smem = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);  in run_with_zeropage()
1455 	tmp = *mem + *smem;  in run_with_zeropage()
1458 	fn(mem, smem, pagesize);  in run_with_zeropage()
1461 	if (smem != MAP_FAILED)  in run_with_zeropage()
1462 		munmap(smem, pagesize);  in run_with_zeropage()
1467 	char *mem, *smem, *mmap_mem, *mmap_smem, tmp;  in run_with_huge_zeropage()  local
1495 	smem = (char *)(((uintptr_t)mmap_smem + pmdsize) & ~(pmdsize - 1));  in run_with_huge_zeropage()
1498 	ret |= madvise(smem, pmdsize, MADV_HUGEPAGE);  in run_with_huge_zeropage()
1509 	tmp = *mem + *smem;  in run_with_huge_zeropage()
1512 	    !pagemap_is_populated(pagemap_fd, smem + pagesize)) {  in run_with_huge_zeropage()
1517 	fn(mem, smem, pmdsize);  in run_with_huge_zeropage()
1526 	char *mem, *smem, tmp;  in run_with_memfd()  local
1549 	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_memfd()
1556 	tmp = *mem + *smem;  in run_with_memfd()
1559 	fn(mem, smem, pagesize);  in run_with_memfd()
1562 	if (smem != MAP_FAILED)  in run_with_memfd()
1563 		munmap(smem, pagesize);  in run_with_memfd()
1570 	char *mem, *smem, tmp;  in run_with_tmpfile()  local
1600 	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_tmpfile()
1607 	tmp = *mem + *smem;  in run_with_tmpfile()
1610 	fn(mem, smem, pagesize);  in run_with_tmpfile()
1613 	if (smem != MAP_FAILED)  in run_with_tmpfile()
1614 		munmap(smem, pagesize);  in run_with_tmpfile()
1623 	char *mem, *smem, tmp;  in run_with_memfd_hugetlb()  local
1650 	smem = mmap(NULL, hugetlbsize, PROT_READ, MAP_SHARED, fd, 0);  in run_with_memfd_hugetlb()
1657 	tmp = *mem + *smem;  in run_with_memfd_hugetlb()
1660 	fn(mem, smem, hugetlbsize);  in run_with_memfd_hugetlb()
1664 		munmap(smem, hugetlbsize);  in run_with_memfd_hugetlb()