netdev - Re: [PATCH bpf-next 04/11] bpf: show prog and map id in fdinfo

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Message-ID: <CAPhsuW4BL_y74F3k2DXn3QQJiiEDtdj_p5dw=G29gADgy-p-9A@mail.gmail.com>
Date:   Wed, 30 May 2018 09:15:25 -0700
From:   Song Liu <liu.song.a23@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     Jesper Dangaard Brouer <brouer@...hat.com>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH bpf-next 04/11] bpf: show prog and map id in fdinfo

On Tue, May 29, 2018 at 12:55 PM, Daniel Borkmann <daniel@...earbox.net> wrote:
> On 05/29/2018 07:27 PM, Jesper Dangaard Brouer wrote:
>> On Mon, 28 May 2018 02:43:37 +0200
>> Daniel Borkmann <daniel@...earbox.net> wrote:
>>
>>> Its trivial and straight forward to expose it for scripts that can
>>> then use it along with bpftool in order to inspect an individual
>>> application's used maps and progs. Right now we dump some basic
>>> information in the fdinfo file but with the help of the map/prog
>>> id full introspection becomes possible now.
>>>
>>> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
>>> Acked-by: Alexei Starovoitov <ast@...nel.org>

Acked-by: Song Liu <songliubraving@...com>

>>
>> AFAICR iproute uses this proc fdinfo, for pinned maps.  Have you tested
>> if this change is handled gracefully by tc ?
>
> Yep, it works just fine, I also tested it before submission.