linux-kernel - Re: Instrumentation and RCU

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Message-ID: <20200309212540.GV2935@paulmck-ThinkPad-P72>
Date:   Mon, 9 Mar 2020 14:25:40 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Frederic Weisbecker <frederic@...nel.org>
Subject: Re: Instrumentation and RCU

On Mon, Mar 09, 2020 at 04:58:11PM -0400, Steven Rostedt wrote:
> On Mon, 9 Mar 2020 13:47:10 -0700
> "Paul E. McKenney" <paulmck@...nel.org> wrote:
> 
> > Yeah, I know.  Just what the kernel doesn't need, yet another variant
> > of RCU...
> 
> And call this variant: yarcu (Yet Another RCU) (pronounced yar-ku ?)

I was thinking in terms of rcu_read_lock_trace(), but hey!

							Thanx, Paul