netdev - Re: [PATCHv5 bpf-next 1/7] bpf: Allow trampoline re-attach for tracing and lsm programs

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Message-ID: <CACYkzJ5osRepe1ruPH1cr6jCsyiwa78CU=TWRN0WyNh=CX+UDA@mail.gmail.com>
Date:   Tue, 20 Apr 2021 00:47:00 +0200
From:   KP Singh <kpsingh@...nel.org>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     Jiri Olsa <jolsa@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>,
        kernel test robot <lkp@...el.com>,
        Julia Lawall <julia.lawall@...6.fr>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        Julia Lawall <julia.lawall@...ia.fr>
Subject: Re: [PATCHv5 bpf-next 1/7] bpf: Allow trampoline re-attach for
 tracing and lsm programs

On Fri, Apr 16, 2021 at 1:22 AM Andrii Nakryiko
<andrii.nakryiko@...il.com> wrote:
>
> On Wed, Apr 14, 2021 at 5:44 PM 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 and
> > lsm programs.
> >
> > Fixing missing unlock with proper cleanup goto jump reported
> > by Julia.
> >
> > Reported-by: kernel test robot <lkp@...el.com>
> > Reported-by: Julia Lawall <julia.lawall@...6.fr>
> > Acked-by: Toke Høiland-Jørgensen <toke@...hat.com>
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> > ---
>
> Acked-by: Andrii Nakryiko <andrii@...nel.org>

Thanks!

Acked-by: KP Singh <kpsingh@...nel.org>