diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/perf_buffer.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/perf_buffer.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c index 6490e9673002..4e32f3586a75 100644 --- a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c +++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c @@ -43,9 +43,10 @@ int trigger_on_cpu(int cpu) return 0; } -void test_perf_buffer(void) +void serial_test_perf_buffer(void) { - int err, on_len, nr_on_cpus = 0, nr_cpus, i; + int err, on_len, nr_on_cpus = 0, nr_cpus, i, j; + int zero = 0, my_pid = getpid(); struct perf_buffer_opts pb_opts = {}; struct test_perf_buffer *skel; cpu_set_t cpu_seen; @@ -71,6 +72,10 @@ void test_perf_buffer(void) if (CHECK(!skel, "skel_load", "skeleton open/load failed\n")) goto out_close; + err = bpf_map_update_elem(bpf_map__fd(skel->maps.my_pid_map), &zero, &my_pid, 0); + if (!ASSERT_OK(err, "my_pid_update")) + goto out_close; + /* attach probe */ err = test_perf_buffer__attach(skel); if (CHECK(err, "attach_kprobe", "err %d\n", err)) @@ -107,19 +112,19 @@ void test_perf_buffer(void) "expect %d, seen %d\n", nr_on_cpus, CPU_COUNT(&cpu_seen))) goto out_free_pb; - if (CHECK(perf_buffer__buffer_cnt(pb) != nr_cpus, "buf_cnt", - "got %zu, expected %d\n", perf_buffer__buffer_cnt(pb), nr_cpus)) + if (CHECK(perf_buffer__buffer_cnt(pb) != nr_on_cpus, "buf_cnt", + "got %zu, expected %d\n", perf_buffer__buffer_cnt(pb), nr_on_cpus)) goto out_close; - for (i = 0; i < nr_cpus; i++) { + for (i = 0, j = 0; i < nr_cpus; i++) { if (i >= on_len || !online[i]) continue; - fd = perf_buffer__buffer_fd(pb, i); + fd = perf_buffer__buffer_fd(pb, j); CHECK(fd < 0 || last_fd == fd, "fd_check", "last fd %d == fd %d\n", last_fd, fd); last_fd = fd; - err = perf_buffer__consume_buffer(pb, i); + err = perf_buffer__consume_buffer(pb, j); if (CHECK(err, "drain_buf", "cpu %d, err %d\n", i, err)) goto out_close; @@ -127,12 +132,13 @@ void test_perf_buffer(void) if (trigger_on_cpu(i)) goto out_close; - err = perf_buffer__consume_buffer(pb, i); - if (CHECK(err, "consume_buf", "cpu %d, err %d\n", i, err)) + err = perf_buffer__consume_buffer(pb, j); + if (CHECK(err, "consume_buf", "cpu %d, err %d\n", j, err)) goto out_close; if (CHECK(!CPU_ISSET(i, &cpu_seen), "cpu_seen", "cpu %d not seen\n", i)) goto out_close; + j++; } out_free_pb: |