138  * NOTE: the function is used to check folio orders after a split is performed,
139  * so it assumes [vaddr_start, len) fully maps to after-split folios within that
318 		ksft_exit_fail_msg("No RssAnon is allocated before split\n");  in verify_rss_anon_split_huge_page_all_zeroes()
320 	/* split all THPs */  in verify_rss_anon_split_huge_page_all_zeroes()
329 		ksft_exit_fail_msg("Still AnonHugePages not split\n");  in verify_rss_anon_split_huge_page_all_zeroes()
345 	ksft_test_result_pass("Split zero filled huge pages successful\n");  in split_pmd_zero_pages()
367 	/* split all THPs */  in split_pmd_thp_to_order()
381 		ksft_exit_fail_msg("Unexpected THP split\n");  in split_pmd_thp_to_order()
384 		ksft_exit_fail_msg("Still AnonHugePages not split\n");  in split_pmd_thp_to_order()
386 	ksft_test_result_pass("Split huge pages to order %d successful\n", order);  in split_pmd_thp_to_order()
442 	 * Verify that our THPs were not split yet. Note that  in split_pte_mapped_thp()
453 	/* Split all THPs through the remapped pages. */  in split_pte_mapped_thp()
457 	/* Corruption during mremap or split? */  in split_pte_mapped_thp()
465 	/* Split failed? */  in split_pte_mapped_thp()
470 		ksft_test_result_fail("THP %zu not split\n", i);  in split_pte_mapped_thp()
473 	ksft_test_result_pass("Split PTE-mapped huge pages successful\n");  in split_pte_mapped_thp()
513 		ksft_print_msg("Fail to create file-backed THP split testing file\n");  in split_file_backed_thp()
531 	/* split the file-backed THP */  in split_file_backed_thp()
534 	/* check file content after split */  in split_file_backed_thp()
570 	ksft_test_result_pass("File-backed THP split to order %d test done\n", order);  in split_file_backed_thp()
666 		ksft_test_result_skip("Pagecache folio split skipped\n");  in create_pagecache_thp_and_fd()
701 	 * use [split_addr, split_addr + pagesize) range to split THPs, since  in split_thp_in_pagecache_to_order_at()
702 	 * the debugfs function always split a range with pagesize step and  in split_thp_in_pagecache_to_order_at()
704 	 * splits, complicating after-split result checking.  in split_thp_in_pagecache_to_order_at()
734 		ksft_print_msg("Unexpected THP split\n");  in split_thp_in_pagecache_to_order_at()
740 		ksft_print_msg("Still FilePmdMapped not split\n");  in split_thp_in_pagecache_to_order_at()
751 			ksft_exit_fail_msg("Split PMD-mapped pagecache folio to order %d failed\n", order);  in split_thp_in_pagecache_to_order_at()
752 		ksft_test_result_pass("Split PMD-mapped pagecache folio to order %d passed\n", order);  in split_thp_in_pagecache_to_order_at()
755 …ksft_exit_fail_msg("Split PMD-mapped pagecache folio to order %d at in-folio offset %d failed\n", …  in split_thp_in_pagecache_to_order_at()
756 …ksft_test_result_pass("Split PMD-mapped pagecache folio to order %d at in-folio offset %d passed\n…  in split_thp_in_pagecache_to_order_at()