diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c index 167cd8a2edfd..1455911d9fcb 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c @@ -50,20 +50,15 @@ 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_create_map(BPF_MAP_TYPE_RINGBUF, 0, 0, page_size, 0); - if (CHECK(proto_fd < 0, "bpf_create_map", "bpf_create_map failed\n")) + /* validate ringbuf size adjustment logic */ + ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_before"); + ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size + 1), "rb1_resize"); + ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), 2 * page_size, "rb1_size_after"); + ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size), "rb1_reset"); + ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_final"); + + 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; err = bpf_map__set_inner_map_fd(skel->maps.ringbuf_hash, proto_fd); @@ -77,6 +72,10 @@ void test_ringbuf_multi(void) close(proto_fd); proto_fd = -1; + /* make sure we can't resize ringbuf after object load */ + if (!ASSERT_ERR(bpf_map__set_max_entries(skel->maps.ringbuf1, 3 * page_size), "rb1_resize_after_load")) + goto cleanup; + /* only trigger BPF program for current process */ skel->bss->pid = getpid(); |