Re: [PATCH v10 net-next 2/2] net: filter: split filter.h and expose eBPF to user space

* David Miller [off-list ref] wrote:

From: Ingo Molnar <redacted>
Date: Mon, 8 Sep 2014 07:23:29 +0200

quoted

* Alexei Starovoitov [off-list ref] wrote:

quoted

quoted

I don't think the speed up of the llvm submission is a 
good argument, this sounds to me similar to the "please 
apply this patch that reserves this new netlink family in 
include/linux/netlink.h, I promise this new subsystem will 
be submitted soon though. Meanwhile this will speed up 
submission of my userspace software to distributions for 
packaging" argument.

You're not correct here. I'm not saying 'I promise it will 
be submitted'. There _were_ already submitted. [...]

And this split-up smaller submissions was requested by David 
Miller, the networking maintainer, so if Pablo wants another 
submission format, he needs to take it up with David - we 
can't do both at once obviously.

I think that just because I asked the submission size to be 
smaller, it does not mean that you can submit things before you 
provide the initial user as well.

And how to work that out and keep the submission size 
reasonable is the submitter's problem, not mine.

That's a pretty harsh requirement but might be doable 
technically: Alexei, please submit a series that is large enough 
to provide self-sufficient functionality as per Pablo's request,
but is also small and minimal, as per David's request.

If that fails then another route would be to decouple from 
networking initially and create something new and stand-alone in 
kernel/ebpf/ (or any other name really), with tracing and perf 
usecases, with networking integration and code deduplication to 
be done at the end, when there can be no legitimate argument 
about its utility.

Thanks,

	Ingo