netdev - Re: [PATCH RFC v3 bpf-next 3/4] libbpf: support sleepable progs

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Message-ID: <CAEf4Bza44nCC_1dCww_rQbo9+SNLgBgpF5vpg_9tmZu0aSOFLg@mail.gmail.com>
Date:   Thu, 18 Jun 2020 15:34:51 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH RFC v3 bpf-next 3/4] libbpf: support sleepable progs

On Thu, Jun 11, 2020 at 3:25 PM Alexei Starovoitov
<alexei.starovoitov@...il.com> wrote:
>
> From: Alexei Starovoitov <ast@...nel.org>
>
> Pass request to load program as sleepable via ".s" suffix in the section name.
> If it happens in the future that all map types and helpers are allowed with
> BPF_F_SLEEPABLE flag "fmod_ret/" and "lsm/" can be aliased to "fmod_ret.s/" and
> "lsm.s/" to make all lsm and fmod_ret programs sleepable by default. The fentry
> and fexit programs would always need to have sleepable vs non-sleepable
> distinction, since not all fentry/fexit progs will be attached to sleepable
> kernel functions.
>
> Signed-off-by: Alexei Starovoitov <ast@...nel.org>
> Acked-by: KP Singh <kpsingh@...gle.com>
> ---

Acked-by: Andrii Nakryiko <andriin@...com>

>  tools/lib/bpf/libbpf.c | 25 ++++++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
>

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