netdev - Re: [RFC PATCH bpf-next 1/4] bpf: Allow trampoline re-attach

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Message-ID: <3769AEAD-120B-4936-98DF-C73CEC11CFD6@fb.com>
Date:   Tue, 30 Mar 2021 01:18:51 +0000
From:   Song Liu <songliubraving@...com>
To:     Jiri Olsa <jolsa@...nel.org>
CC:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
        Martin Lau <kafai@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Toke Høiland-Jørgensen <toke@...hat.com>
Subject: Re: [RFC PATCH bpf-next 1/4] bpf: Allow trampoline re-attach



> On Mar 28, 2021, at 4:26 AM, Jiri Olsa <jolsa@...nel.org> wrote:
> 
> Currently we don't allow re-attaching of trampolines. Once
> it's detached, it can't be re-attach even when the program
> is still loaded.
> 
> Adding the possibility to re-attach the loaded tracing
> kernel program.
> 
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>

LGTM. 

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

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