Kaixu Xia 35578d7984 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>

2015-08-09 22:50:06 -07:00

8.5 KiB

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