Re: [RFC perf,bpf 1/5] perf, bpf: Introduce PERF_RECORD_BPF_EVENT

[Alexei Starovoitov]

On 11/9/18 10:49 AM, Song Liu wrote:
> 
> 
>> On Nov 9, 2018, at 9:08 AM, David Ahern <dsahern@xxxxxxxxx> wrote:
>>
>> On 11/8/18 11:49 AM, Song Liu wrote:
>>> Could you please point me to more information about the use cases you worry
>>> about? I am more than happy to optimize the logic for those use cases.
>>
>> bpf load and unload as just another tracepoint to throw into a set of
>> events that are monitored. As mentioned before auditing the loads and
>> unloads is one example.
> 
> For the tracepoint approach, we need similar synchronous logic in perf to
> process BPF load/unload events. If we agree this is the right direction,
> I will modify the set with tracepoints.

we had tracepoints in bpf core. We removed it.
I don't think we'll be going back.