diff options
| author | Andrii Nakryiko <andrii@kernel.org> | 2023-10-11 15:37:24 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-10-16 13:49:18 +0200 |
| commit | 2d78928c9cf7bee08c3e2344e6e1755412855448 (patch) | |
| tree | d94e87cd0f8b942aabce0c87eff573704774dd01 /tools/testing/selftests/bpf/progs/percpu_alloc_array.c | |
| parent | 0e10fd4b7a6dd03cf6d1da293d5d50082917f0e0 (diff) | |
selftests/bpf: Improve percpu_alloc test robustness
Make these non-serial tests filter BPF programs by intended PID of
a test runner process. This makes it isolated from other parallel tests
that might interfere accidentally.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20231011223728.3188086-2-andrii@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/progs/percpu_alloc_array.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/percpu_alloc_array.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_array.c b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c index bbc45346e006..37c2d2608ec0 100644 --- a/tools/testing/selftests/bpf/progs/percpu_alloc_array.c +++ b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c @@ -71,6 +71,7 @@ int BPF_PROG(test_array_map_2) } int cpu0_field_d, sum_field_c; +int my_pid; /* Summarize percpu data */ SEC("?fentry/bpf_fentry_test3") @@ -81,6 +82,9 @@ int BPF_PROG(test_array_map_3) struct val_t *v; struct elem *e; + if ((bpf_get_current_pid_tgid() >> 32) != my_pid) + return 0; + e = bpf_map_lookup_elem(&array, &index); if (!e) return 0; @@ -130,6 +134,9 @@ int BPF_PROG(test_array_map_10) struct val_t *v; struct elem *e; + if ((bpf_get_current_pid_tgid() >> 32) != my_pid) + return 0; + e = bpf_map_lookup_elem(&array, &index); if (!e) return 0; |