From: Terry Tritton <terry.tritton@linaro.org>
To: akpm@linux-foundation.org, shuah@kernel.org
Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org, peter.griffin@linaro.org,
bettyzhou@google.com, Terry Tritton <terry.tritton@linaro.org>
Subject: [PATCH] selftests/mm: uffd-unit-test check if huge page size is 0
Date: Mon, 5 Feb 2024 14:50:56 +0000 [thread overview]
Message-ID: <20240205145055.3545806-2-terry.tritton@linaro.org> (raw)
If HUGETLBFS is not enabled then the default_huge_page_size function will
return 0 and cause a divide by 0 error. Add a check to see if the huge page
size is 0 and skip the hugetlb tests if it is.
Signed-off-by: Terry Tritton <terry.tritton@linaro.org>
---
tools/testing/selftests/mm/uffd-unit-tests.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c
index cce90a10515a..2b9f8cc52639 100644
--- a/tools/testing/selftests/mm/uffd-unit-tests.c
+++ b/tools/testing/selftests/mm/uffd-unit-tests.c
@@ -1517,6 +1517,12 @@ int main(int argc, char *argv[])
continue;
uffd_test_start("%s on %s", test->name, mem_type->name);
+ if ((mem_type->mem_flag == MEM_HUGETLB ||
+ mem_type->mem_flag == MEM_HUGETLB_PRIVATE) &&
+ (default_huge_page_size() == 0)) {
+ uffd_test_skip("huge page size is 0, feature missing?");
+ continue;
+ }
if (!uffd_feature_supported(test)) {
uffd_test_skip("feature missing");
continue;
--
2.43.0.594.gd9cf4e227d-goog
reply other threads:[~2024-02-05 14:52 UTC|newest]
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