selftests/mm: fix split huge page tests

Fix two inputs to check_anon_huge() and one if condition, so the tests
work as expected.

Link: https://lkml.kernel.org/r/20230306160907.16804-1-zi.yan@sent.com
Fixes: c07c343cda8e ("selftests/vm: dedup THP helpers")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Tested-by: Zach O'Keefe <zokeefe@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/mm/split_huge_page_test.c b/tools/testing/selftests/mm/split_huge_page_test.c
index 76e1c36..b8558c7 100644 (file)
--- a/tools/testing/selftests/mm/split_huge_page_test.c
+++ b/tools/testing/selftests/mm/split_huge_page_test.c
@@ -106,7 +106,7 @@ void split_pmd_thp(void)
        for (i = 0; i < len; i++)
                one_page[i] = (char)i;
 
-       if (!check_huge_anon(one_page, 1, pmd_pagesize)) {
+       if (!check_huge_anon(one_page, 4, pmd_pagesize)) {
                printf("No THP is allocated\n");
                exit(EXIT_FAILURE);
        }
@@ -122,7 +122,7 @@ void split_pmd_thp(void)
                }
 
 
-       if (check_huge_anon(one_page, 0, pmd_pagesize)) {
+       if (!check_huge_anon(one_page, 0, pmd_pagesize)) {
                printf("Still AnonHugePages not split\n");
                exit(EXIT_FAILURE);
        }
@@ -169,7 +169,7 @@ void split_pte_mapped_thp(void)
        for (i = 0; i < len; i++)
                one_page[i] = (char)i;
 
-       if (!check_huge_anon(one_page, 1, pmd_pagesize)) {
+       if (!check_huge_anon(one_page, 4, pmd_pagesize)) {
                printf("No THP is allocated\n");
                exit(EXIT_FAILURE);
        }