diff options
| author | Terry Tritton <terry.tritton@linaro.org> | 2024-02-05 17:50:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 15:35:00 +0300 |
| commit | 0b34dca1bfd5eb98e8a2e84aa5ed0d137450562a (patch) | |
| tree | d97d1fc2af7febf96d96a990d5658564dac71277 /tools/testing/selftests/mm | |
| parent | 3c884ee7c5d4715b09062a0b713b76cd8dd83f1c (diff) | |
| download | linux-0b34dca1bfd5eb98e8a2e84aa5ed0d137450562a.tar.xz | |
selftests/mm: uffd-unit-test check if huge page size is 0
commit 7efa6f2c803366f84c3c362f01e822490669d72b upstream.
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.
Link: https://lkml.kernel.org/r/20240205145055.3545806-2-terry.tritton@linaro.org
Fixes: 16a45b57cbf2 ("selftests/mm: add framework for uffd-unit-test")
Signed-off-by: Terry Tritton <terry.tritton@linaro.org>
Cc: Peter Griffin <peter.griffin@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/mm')
| -rw-r--r-- | tools/testing/selftests/mm/uffd-unit-tests.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c index 2709a34a39c5..2c68709062da 100644 --- a/tools/testing/selftests/mm/uffd-unit-tests.c +++ b/tools/testing/selftests/mm/uffd-unit-tests.c @@ -1309,6 +1309,12 @@ 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; |