diff options
| author |   Matt Mullins <mmullins@fb.com> | 2018-12-12 16:42:37 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2018-12-18 14:08:12 -0800 |
| commit | a38d1107f937ca95dcf820161ef44ea683d6a0b1 (patch) | |
| tree | 6fe1371db87f368a635d6d4aa7ef58031a940cf7 /include/linux/trace_events.h | |
| parent | Merge branch 'bpf-bpftool-mount-tracefs' (diff) | |
| download | linux-dev-a38d1107f937ca95dcf820161ef44ea683d6a0b1.tar.xz linux-dev-a38d1107f937ca95dcf820161ef44ea683d6a0b1.zip | |
bpf: support raw tracepoints in modules
Distributions build drivers as modules, including network and filesystem
drivers which export numerous tracepoints. This enables
bpf(BPF_RAW_TRACEPOINT_OPEN) to attach to those tracepoints.
Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/trace_events.h')
| -rw-r--r-- | include/linux/trace_events.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h index 4130a5497d40..8a62731673f7 100644 --- a/include/linux/trace_events.h +++ b/include/linux/trace_events.h @@ -471,7 +471,8 @@ void perf_event_detach_bpf_prog(struct perf_event *event); int perf_event_query_prog_array(struct perf_event *event, void __user *info); int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *prog); int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *prog); -struct bpf_raw_event_map *bpf_find_raw_tracepoint(const char *name); +struct bpf_raw_event_map *bpf_get_raw_tracepoint(const char *name); +void bpf_put_raw_tracepoint(struct bpf_raw_event_map *btp); int bpf_get_perf_event_info(const struct perf_event *event, u32 *prog_id, u32 *fd_type, const char **buf, u64 *probe_offset, u64 *probe_addr); @@ -502,10 +503,13 @@ static inline int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf { return -EOPNOTSUPP; } -static inline struct bpf_raw_event_map *bpf_find_raw_tracepoint(const char *name) +static inline struct bpf_raw_event_map *bpf_get_raw_tracepoint(const char *name) { return NULL; } +static inline void bpf_put_raw_tracepoint(struct bpf_raw_event_map *btp) +{ +} static inline int bpf_get_perf_event_info(const struct perf_event *event, u32 *prog_id, u32 *fd_type, const char **buf, u64 *probe_offset, |