187 	int mem_size, vec_size, written, num_pages = 16;  in userfaultfd_tests()  local
213 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in userfaultfd_tests()
215 	if (written < 0)  in userfaultfd_tests()
216 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in userfaultfd_tests()
218 	ksft_test_result(written == 0, "%s all new pages must not be written (dirty)\n", __func__);  in userfaultfd_tests()
319 	/* 3. Repeated pattern of written and non-written pages */  in sanity_tests_sd()
329 			 "%s Repeated pattern of written and non-written pages\n", __func__);  in sanity_tests_sd()
331 	/* 4. Repeated pattern of written and non-written pages in parts */  in sanity_tests_sd()
350 			 "%s Repeated pattern of written and non-written pages in parts %ld %ld %ld\n",  in sanity_tests_sd()
353 	/* 5. Repeated pattern of written and non-written pages max_pages */  in sanity_tests_sd()
371 			 "%s Repeated pattern of written and non-written pages max_pages\n",  in sanity_tests_sd()
395 			 "%s only get 2 written pages and clear them as well\n", __func__);  in sanity_tests_sd()
682 	int written;  in base_tests()  local
686 		ksft_test_result_skip("%s all new pages must not be written (dirty)\n", prefix);  in base_tests()
687 		ksft_test_result_skip("%s all pages must be written (dirty)\n", prefix);  in base_tests()
700 	/* 1. all new pages must be not be written (dirty) */  in base_tests()
701 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in base_tests()
703 	if (written < 0)  in base_tests()
704 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
706 	ksft_test_result(written == 0, "%s all new pages must not be written (dirty)\n", prefix);  in base_tests()
708 	/* 2. all pages must be written */  in base_tests()
711 	written = pagemap_ioctl(mem, mem_size, vec, 1, 0, 0, PAGE_IS_WRITTEN, 0, 0,  in base_tests()
713 	if (written < 0)  in base_tests()
714 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
716 	ksft_test_result(written == 1 && LEN(vec[0]) == mem_size/page_size,  in base_tests()
717 			 "%s all pages must be written (dirty)\n", prefix);  in base_tests()
720 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in base_tests()
722 	if (written < 0)  in base_tests()
723 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
727 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in base_tests()
729 	if (written < 0)  in base_tests()
730 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
732 	ksft_test_result(written == 1 && LEN(vec[0]) >= vec_size - 2 && LEN(vec[0]) <= vec_size,  in base_tests()
735 	written = pagemap_ioctl(mem, mem_size, vec, 1, 0, 0,  in base_tests()
737 	if (written < 0)  in base_tests()
738 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
740 	ksft_test_result(written == 0,  in base_tests()
744 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in base_tests()
746 	if (written < 0)  in base_tests()
747 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
751 	written = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0, PAGE_IS_WRITTEN,  in base_tests()
753 	if (written < 0)  in base_tests()
754 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
756 	ksft_test_result(written == 1 && LEN(vec[0]) >= 1,  in base_tests()
760 	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,  in base_tests()
762 	if (written < 0)  in base_tests()
763 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
768 	written = pagemap_ioctl(&mem[vec_size/2 * page_size], 2 * page_size, vec, 1, 0,  in base_tests()
770 	if (written < 0)  in base_tests()
771 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in base_tests()
773 	ksft_test_result(written == 1 && vec[0].start == (uintptr_t)(&mem[vec_size/2 * page_size])  in base_tests()
819 		/* 1. all new huge page must not be written (dirty) */  in hpage_unit_tests()
826 		ksft_test_result(ret == 0, "%s all new huge page must not be written (dirty)\n",  in hpage_unit_tests()
829 		/* 2. all the huge page must not be written */  in hpage_unit_tests()
835 		ksft_test_result(ret == 0, "%s all the huge page must not be written\n", __func__);  in hpage_unit_tests()
837 		/* 3. all the huge page must be written and clear dirty as well */  in hpage_unit_tests()
847 				 "%s all the huge page must be written and clear\n", __func__);  in hpage_unit_tests()
849 		/* 4. only middle page written */  in hpage_unit_tests()
863 				 "%s only middle page written\n", __func__);  in hpage_unit_tests()
868 		ksft_test_result_skip("%s all new huge page must be written\n", __func__);  in hpage_unit_tests()
869 		ksft_test_result_skip("%s all the huge page must not be written\n", __func__);  in hpage_unit_tests()
870 		ksft_test_result_skip("%s all the huge page must be written and clear\n", __func__);  in hpage_unit_tests()
871 		ksft_test_result_skip("%s only middle page written\n", __func__);  in hpage_unit_tests()
997 	int written, len = 0x00040000;  in unmapped_region_tests()  local
1001 	/* 1. Get written pages */  in unmapped_region_tests()
1002 	written = pagemap_ioctl(start, len, vec, vec_size, 0, 0,  in unmapped_region_tests()
1004 	if (written < 0)  in unmapped_region_tests()
1005 		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));  in unmapped_region_tests()
1007 	ksft_test_result(written >= 0, "%s Get status of pages\n", __func__);  in unmapped_region_tests()
1029 			ksft_print_msg("written bit was 1, but should be 0 (i=%d)\n", i);  in test_simple()
1034 		/* Write something to the page to get the written bit enabled on the page */  in test_simple()
1039 			ksft_print_msg("written bit was 0, but should be 1 (i=%d)\n", i);  in test_simple()
1138 	/* 8. Find written present pages with return mask */  in sanity_tests()
1152 			 "%s Find written present pages with return mask\n", __func__);  in sanity_tests()
1251 	ksft_test_result(ret == 1 && LEN(vec) == 2, "%s Both pages written\n", __func__);  in mprotect_tests()
1258 			 "%s Both pages are not written (dirty)\n", __func__);  in mprotect_tests()
1287 			 "%s Both pages written after remap and mprotect\n", __func__);  in mprotect_tests()
1289 	/* 4. Clear and make the pages written */  in mprotect_tests()
1300 			 "%s Clear and make the pages written\n", __func__);  in mprotect_tests()