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| author | Song Liu <song@kernel.org> | 2021-04-25 23:43:33 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 15:30:58 +0200 |
| commit | 5508c9dae2a4a111acc7472900164f556ae75346 (patch) | |
| tree | fd1feda22a604bcc179794b2acf320ad7c66d97b /tools/perf/util/bpf_counter.h | |
| parent | perf stat: Introduce ':b' modifier (diff) | |
| download | linux-5508c9dae2a4a111acc7472900164f556ae75346.tar.xz linux-5508c9dae2a4a111acc7472900164f556ae75346.zip | |
perf stat: Introduce bpf_counter_ops->disable()
Introduce bpf_counter_ops->disable(), which is used stop counting the
event.
Committer notes:
Added a dummy bpf_counter__disable() to the python binding to avoid
having 'perf test python' failing.
bpf_counter isn't supported in the python binding.
Signed-off-by: Song Liu <song@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: kernel-team@fb.com
Link: https://lore.kernel.org/r/20210425214333.1090950-6-song@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf_counter.h')
| -rw-r--r-- | tools/perf/util/bpf_counter.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h index cb9c532e0a07..d6d907c3dcf9 100644 --- a/tools/perf/util/bpf_counter.h +++ b/tools/perf/util/bpf_counter.h @@ -18,6 +18,7 @@ typedef int (*bpf_counter_evsel_install_pe_op)(struct evsel *evsel, struct bpf_counter_ops { bpf_counter_evsel_target_op load; bpf_counter_evsel_op enable; + bpf_counter_evsel_op disable; bpf_counter_evsel_op read; bpf_counter_evsel_op destroy; bpf_counter_evsel_install_pe_op install_pe; @@ -32,6 +33,7 @@ struct bpf_counter { int bpf_counter__load(struct evsel *evsel, struct target *target); int bpf_counter__enable(struct evsel *evsel); +int bpf_counter__disable(struct evsel *evsel); int bpf_counter__read(struct evsel *evsel); void bpf_counter__destroy(struct evsel *evsel); int bpf_counter__install_pe(struct evsel *evsel, int cpu, int fd); @@ -51,6 +53,11 @@ static inline int bpf_counter__enable(struct evsel *evsel __maybe_unused) return 0; } +static inline int bpf_counter__disable(struct evsel *evsel __maybe_unused) +{ + return 0; +} + static inline int bpf_counter__read(struct evsel *evsel __maybe_unused) { return -EAGAIN; |