diff mbox series

[v2,2/3] selftests/mm: Skip uffd hugetlb tests with insufficient hugepages

Message ID 20240306223714.320681-3-npache@redhat.com (mailing list archive)
State New
Headers show
Series selftests/mm: Improve Hugepage Test Handling in MM Selftests | expand

Commit Message

Nico Pache March 6, 2024, 10:37 p.m. UTC 
Now that run_vmtests.sh does not guarantee that the correct hugepage
count is available, add a check inside the userfaultfd hugetlb test to
verify the nr_hugepages count before continuing.

Signed-off-by: Nico Pache <npache@redhat.com>
---
 tools/testing/selftests/mm/uffd-stress.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c
index 7e83829bbb335..1165446f10883 100644
--- a/tools/testing/selftests/mm/uffd-stress.c
+++ b/tools/testing/selftests/mm/uffd-stress.c
@@ -441,6 +441,12 @@  int main(int argc, char **argv)
 	parse_test_type_arg(argv[1]);
 	bytes = atol(argv[2]) * 1024 * 1024;
 
+	if (test_type == TEST_HUGETLB &&
+	   get_free_hugepages() < bytes / page_size) {
+		printf("skip: Skipping userfaultfd... not enough hugepages\n");
+		return KSFT_SKIP;
+	}
+
 	nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
 
 	nr_pages_per_cpu = bytes / page_size / nr_cpus;