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From:   Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= <toke@kernel.org>
To:     Yafang Shao <laoar.shao@gmail.com>, ast@kernel.org,
        daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com,
        songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com,
        kpsingh@kernel.org, sdf@google.com, haoluo@google.com,
        jolsa@kernel.org
Cc:     bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
        Yafang Shao <laoar.shao@gmail.com>
Subject: Re: [RFC PATCH bpf-next 08/13] bpf: Alloc and free bpf_map id in
 bpf namespace
In-Reply-To: <20230326092208.13613-9-laoar.shao@gmail.com>
References: <20230326092208.13613-1-laoar.shao@gmail.com>
 <20230326092208.13613-9-laoar.shao@gmail.com>
Date:   Sun, 26 Mar 2023 12:50:58 +0200
Message-ID: <87mt3z7pm5.fsf@toke.dk>
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Yafang Shao <laoar.shao@gmail.com> writes:

> We only expose the bpf map id under current bpf namespace to user. The
> map->id is still the id in the init bpf namespace.
>
> The result as follows,
>
> Run bpftool in a new bpf namespace
> $ bpftool map show
> 4: array  name kprobe_b.rodata  flags 0x80
>         key 4B  value 37B  max_entries 1  memlock 360B
>         btf_id 159  frozen

The btf_id is identical for all the different objects in this example
output; surely that can't be right? Copy-paste error? Same thing in the
other patches...

-Toke