diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2022-05-09 03:41:48 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-05-09 18:15:32 +0300 |
| commit | 7b3a06382442c4d83c9d35253638cb3f561da9b9 (patch) | |
| tree | ce565cfbc82681c5a94482e16c409884f032bd81 /tools | |
| parent | 0087a681fa8c22f719a567317e8f8f894d734b9c (diff) | |
| download | linux-7b3a06382442c4d83c9d35253638cb3f561da9b9.tar.xz | |
selftests/bpf: Test libbpf's ringbuf size fix up logic
Make sure we always excercise libbpf's ringbuf map size adjustment logic
by specifying non-zero size that's definitely not a page size multiple.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-10-andrii@kernel.org
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c | 12 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_ringbuf_multi.c | 2 |
2 files changed, 2 insertions, 12 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c index e945195b24c9..eb5f7f5aa81a 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c @@ -50,18 +50,6 @@ void test_ringbuf_multi(void) if (CHECK(!skel, "skel_open", "skeleton open failed\n")) return; - err = bpf_map__set_max_entries(skel->maps.ringbuf1, page_size); - if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) - goto cleanup; - - err = bpf_map__set_max_entries(skel->maps.ringbuf2, page_size); - if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) - goto cleanup; - - err = bpf_map__set_max_entries(bpf_map__inner_map(skel->maps.ringbuf_arr), page_size); - if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) - goto cleanup; - proto_fd = bpf_map_create(BPF_MAP_TYPE_RINGBUF, NULL, 0, 0, page_size, NULL); if (CHECK(proto_fd < 0, "bpf_map_create", "bpf_map_create failed\n")) goto cleanup; diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c b/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c index 197b86546dca..e416e0ce12b7 100644 --- a/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c +++ b/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c @@ -15,6 +15,8 @@ struct sample { struct ringbuf_map { __uint(type, BPF_MAP_TYPE_RINGBUF); + /* libbpf will adjust to valid page size */ + __uint(max_entries, 1000); } ringbuf1 SEC(".maps"), ringbuf2 SEC(".maps"); |