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Message-ID: <CAD8CoPDASe7hpkFbK+UzJats7j4sbgsCh_P4zaQYVuKD7jWu2w@mail.gmail.com>
Date:   Mon, 22 May 2023 10:07:42 +0800
From:   Ze Gao <zegao2021@...il.com>
To:     Jiri Olsa <olsajiri@...il.com>
Cc:     Yonghong Song <yhs@...a.com>, Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Hao Luo <haoluo@...gle.com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Song Liu <song@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Yonghong Song <yhs@...com>, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        kafai@...com, kpsingh@...omium.org, netdev@...r.kernel.org,
        paulmck@...nel.org, songliubraving@...com,
        Ze Gao <zegao@...cent.com>
Subject: Re:

Oops, I missed that. Thanks for pointing that out, which I thought is
conditional use of rcu_is_watching before.

One last point, I think we should double check on this
     "fentry does not filter with !rcu_is_watching"
as quoted from Yonghong and argue whether it needs
the same check for fentry as well.

Regards,
Ze