netdev - Re: [PATCH v3 bpf-next 0/4] Add support for cgroup bpf

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Message-ID: <CAADnVQK8oMZehQVt34=5zgN12VBc2940AWJJK2Ft0cbOi1jDhQ@mail.gmail.com>
Date:   Mon, 30 Mar 2020 15:50:24 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     David Ahern <dsahern@...il.com>
Cc:     Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Andrii Nakryiko <andriin@...com>, bpf <bpf@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrey Ignatov <rdna@...com>, Kernel Team <kernel-team@...com>
Subject: Re: [PATCH v3 bpf-next 0/4] Add support for cgroup bpf_link

On Mon, Mar 30, 2020 at 1:46 PM David Ahern <dsahern@...il.com> wrote:
> release. As it stands it is a half-baked feature.

speaking of half-baked.
I think as it stands (even without link_query) it's already extremely
useful addition and doesn't take anything away from existing cgroup-bpf
and doesn't hinder observability. 'bpftool cgroup' works just fine.
So I've applied the set.

Even if it was half-baked it would still be applie-able.
Many features are developed over the course of multiple
kernel releases. Example: your nexthops, mptcp, bpf-lsm.