linux-kernel - Re: [PATCH] rcu: ftrace: avoid tracing a few functions executed in multi_cpu

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Message-ID: <20220420122633.55d4ff6b@gandalf.local.home>
Date:   Wed, 20 Apr 2022 12:26:33 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     patrick wang <patrick.wang.shcn@...il.com>
Cc:     paulmck@...nel.org, frederic@...nel.org, quic_neeraju@...cinc.com,
        josh@...htriplett.org, mathieu.desnoyers@...icios.com,
        jiangshanlai@...il.com, joel@...lfernandes.org,
        rcu@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rcu: ftrace: avoid tracing a few functions executed in
 multi_cpu_stop()

On Wed, 20 Apr 2022 11:44:54 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> [*] You really should come up with a better way than stop machine, because
> the stop machine method is really disruptive, can you not use the break
> point method for updates?

Talk about dejavu!

  https://lore.kernel.org/all/mhng-62c2ef00-fb64-48c3-a2bb-43b2799161bf@palmer-ri-x1c9/

-- Steve