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| author | Alexei Starovoitov <ast@kernel.org> | 2021-02-09 19:36:31 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-02-11 16:19:20 +0100 |
| commit | 9ed9e9ba2337205311398a312796c213737bac35 (patch) | |
| tree | 361082a8f4e91f8d2891a77168843bdce88a9958 /tools/include | |
| parent | 406c557edc5bb903db9f6cdd543cfc282c663ad8 (diff) | |
| download | linux-stable-9ed9e9ba2337205311398a312796c213737bac35.tar.gz linux-stable-9ed9e9ba2337205311398a312796c213737bac35.tar.bz2 linux-stable-9ed9e9ba2337205311398a312796c213737bac35.zip | |
bpf: Count the number of times recursion was prevented
Add per-program counter for number of times recursion prevention mechanism
was triggered and expose it via show_fdinfo and bpf_prog_info.
Teach bpftool to print it.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210210033634.62081-7-alexei.starovoitov@gmail.com
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index c001766adcbc..c547ad1ffe43 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -4501,6 +4501,7 @@ struct bpf_prog_info { __aligned_u64 prog_tags; __u64 run_time_ns; __u64 run_cnt; + __u64 recursion_misses; } __attribute__((aligned(8))); struct bpf_map_info { |