Feedback-ID: iccd040f4:Fastmail
From:   Zi Yan <zi.yan@sent.com>
To:     Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc:     Zi Yan <ziy@nvidia.com>, linux-kernel@vger.kernel.org,
        linux-kselftest@vger.kernel.org, Shuah Khan <shuah@kernel.org>,
        Zach O'Keefe <zokeefe@google.com>
Subject: [PATCH] selftests/mm: fix split huge page tests
Date:   Mon,  6 Mar 2023 11:09:07 -0500
Message-Id: <20230306160907.16804-1-zi.yan@sent.com>
Reply-To: Zi Yan <ziy@nvidia.com>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
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From: Zi Yan <ziy@nvidia.com>

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

Fixes: c07c343cda8e ("selftests/vm: dedup THP helpers")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Zach O'Keefe <zokeefe@google.com>
---
 tools/testing/selftests/mm/split_huge_page_test.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/mm/split_huge_page_test.c b/tools/test=
ing/selftests/mm/split_huge_page_test.c
index 76e1c36dd9e5..b8558c7f1a39 100644
--- 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 =3D 0; i < len; i++)
 		one_page[i] =3D (char)i;
=20
-	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)
 		}
=20
=20
-	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 =3D 0; i < len; i++)
 		one_page[i] =3D (char)i;
=20
-	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);
 	}
--=20
2.39.2