Enable test_uffdio_minor for test_type == TEST_SHMEM, and modify the test slightly to pass in / check for the right feature flags.
Signed-off-by: Axel Rasmussen axelrasmussen@google.com --- tools/testing/selftests/vm/userfaultfd.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 5183ddb3080d..f31e9a4edc55 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -1410,7 +1410,7 @@ static int userfaultfd_minor_test(void) void *expected_page; char c; struct uffd_stats stats = { 0 }; - uint64_t features = UFFD_FEATURE_MINOR_HUGETLBFS; + uint64_t req_features, features_out;
if (!test_uffdio_minor) return 0; @@ -1418,10 +1418,18 @@ static int userfaultfd_minor_test(void) printf("testing minor faults: "); fflush(stdout);
- if (uffd_test_ctx_clear() || uffd_test_ctx_init_ext(&features)) + if (test_type == TEST_HUGETLB) + req_features = UFFD_FEATURE_MINOR_HUGETLBFS; + else if (test_type == TEST_SHMEM) + req_features = UFFD_FEATURE_MINOR_SHMEM; + else + return 1; + + features_out = req_features; + if (uffd_test_ctx_clear() || uffd_test_ctx_init_ext(&features_out)) return 1; - /* If kernel reports the feature isn't supported, skip the test. */ - if (!(features & UFFD_FEATURE_MINOR_HUGETLBFS)) { + /* If kernel reports required features aren't supported, skip test. */ + if ((features_out & req_features) != req_features) { printf("skipping test due to lack of feature support\n"); fflush(stdout); return 0; @@ -1431,7 +1439,7 @@ static int userfaultfd_minor_test(void) uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MINOR; if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) { - fprintf(stderr, "register failure\n"); + perror("register failure"); exit(1); }
@@ -1695,6 +1703,7 @@ static void set_test_type(const char *type) map_shared = true; test_type = TEST_SHMEM; uffd_test_ops = &shmem_uffd_test_ops; + test_uffdio_minor = true; } else { fprintf(stderr, "Unknown test type: %s\n", type); exit(1); }