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author | Yafang Shao <laoar.shao@gmail.com> | 2023-07-09 05:56:28 +0300 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2023-07-12 06:07:51 +0300 |
commit | 1b715e1b0ec531fae72cd6698fe1c98affa436f8 (patch) | |
tree | 0929b06277eab4cf8f393cdf105311f123f7212b /io_uring/openclose.h | |
parent | 57d485376552480602ab83bf7499b451bae5a1b9 (diff) | |
download | linux-1b715e1b0ec531fae72cd6698fe1c98affa436f8.tar.xz |
bpf: Support ->fill_link_info for perf_event
By introducing support for ->fill_link_info to the perf_event link, users
gain the ability to inspect it using `bpftool link show`. While the current
approach involves accessing this information via `bpftool perf show`,
consolidating link information for all link types in one place offers
greater convenience. Additionally, this patch extends support to the
generic perf event, which is not currently accommodated by
`bpftool perf show`. While only the perf type and config are exposed to
userspace, other attributes such as sample_period and sample_freq are
ignored. It's important to note that if kptr_restrict is not permitted, the
probed address will not be exposed, maintaining security measures.
A new enum bpf_perf_event_type is introduced to help the user understand
which struct is relevant.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230709025630.3735-9-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'io_uring/openclose.h')
0 files changed, 0 insertions, 0 deletions