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Date:   Fri, 22 Jul 2022 12:37:43 -0400
From:   Steven Rostedt <rostedt@goodmis.org>
To:     Jiri Olsa <olsajiri@gmail.com>
Cc:     Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>,
        Ingo Molnar <mingo@redhat.com>, bpf <bpf@vger.kernel.org>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
        John Fastabend <john.fastabend@gmail.com>,
        KP Singh <kpsingh@chromium.org>,
        Stanislav Fomichev <sdf@google.com>,
        Hao Luo <haoluo@google.com>
Subject: Re: [RFC] ftrace: Add support to keep some functions out of ftrace
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On Fri, 22 Jul 2022 18:26:09 +0200
Jiri Olsa <olsajiri@gmail.com> wrote:

> > So, why not mark it as notrace? That will prevent ftrace from looking at it.  
> 
> there's still needs to be the instrument jump generated
> in order to use bpf_arch_text_poke on that

Can you explain the background on this. Why is bpf doing text_poke on
function entries? What was the direct use case for?

-- Steve