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| author | Kaixu Xia <xiakaixu@huawei.com> | 2015-08-06 07:02:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-09 22:50:06 -0700 |
| commit | 35578d7984003097af2b1e34502bc943d40c1804 (patch) | |
| tree | b2eca5ddc9446e771dd5a9e1629b12f98b9f2bf0 /include/uapi | |
| parent | ea317b267e9d03a8241893aa176fba7661d07579 (diff) | |
| download | linux-stable-35578d7984003097af2b1e34502bc943d40c1804.tar.gz linux-stable-35578d7984003097af2b1e34502bc943d40c1804.tar.bz2 linux-stable-35578d7984003097af2b1e34502bc943d40c1804.zip | |
bpf: Implement function bpf_perf_event_read() that get the selected hardware PMU conuter
According to the perf_event_map_fd and index, the function
bpf_perf_event_read() can convert the corresponding map
value to the pointer to struct perf_event and return the
Hardware PMU counter value.
Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/bpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index a1814e8e53a7..92a48e2d5461 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -271,6 +271,7 @@ enum bpf_func_id { */ BPF_FUNC_skb_get_tunnel_key, BPF_FUNC_skb_set_tunnel_key, + BPF_FUNC_perf_event_read, /* u64 bpf_perf_event_read(&map, index) */ __BPF_FUNC_MAX_ID, }; |