Re: [RFC PATCH 00/20] rv: Add support for BPF monitors

[Steven Rostedt]

On Fri, 04 Sep 2026 09:16:28 -0700
"Alexei Starovoitov" <alexei.starovoitov@xxxxxxxxx> wrote:

> You added a whole bunch of hardcoded "monitors". None of them were
> necessary. The whole RV is imo a waste of kernel code.
> All of that could have been done via existing bpf tracing functionality.
> One can delete kernel/trace/rv and do the same thing with bpf.
> So I'm strongly against bolting bpf to RV as yet another "monitor".
> It's a wrong design. Keep adding hard coded monitors and don't mess
> with bpf.

In the beginning, Daniel Bristot looked into doing this with BPF and found
issues with it. I do not recall what they were and unfortunately Daniel is
no longer around to explain it. Maybe Gabriele knows what they were.

> 
> > Gabriele will be presenting this work at Linux Plumbers[1]. This will  
> 
> I didn't vote for it. Other bpf maintainers did. Hence it's in schedule.
> But my stance is still a nack.

So be it, it will likely be a lively discussion ;-)

-- Steve