netdev - Re: [PATCH bpf-next] bpf: print a little more info about maps via cat /sys/fs/bpf/pinned

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Date:   Wed, 25 May 2022 09:32:42 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        BPF Mailing List <bpf@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH bpf-next] bpf: print a little more info about maps via cat /sys/fs/bpf/pinned_name

On Wed, May 25, 2022 at 9:14 AM Maciej Żenczykowski
<zenczykowski@...il.com> wrote:
>
> When it works it's really nice...

Load your own bpf map iterator program and pin anywhere
in bpffs under name of choice and your own access permissions.
See selftests/bpf/progs/bpf_iter_bpf_map.c