linux-kernel - Re: [RFC 1/3] softirq: Use preempt_latency

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Message-ID: <20190604080153.554a9ffd@oasis.local.home>
Date:   Tue, 4 Jun 2019 08:01:53 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Daniel Bristot de Oliveira <bristot@...hat.com>
Cc:     Joel Fernandes <joel@...lfernandes.org>,
        linux-kernel@...r.kernel.org, williams@...hat.com,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Yangtao Li <tiny.windzz@...il.com>,
        Tommaso Cucinotta <tommaso.cucinotta@...tannapisa.it>
Subject: Re: [RFC 1/3] softirq: Use preempt_latency_stop/start to trace
 preemption

On Tue, 4 Jun 2019 12:39:03 +0200
Daniel Bristot de Oliveira <bristot@...hat.com> wrote:

> > This sounds more like a break in behavior not a functional change. I
> > guess moving it to a header and making it a static __always_inline
> > should be fine though.  
> 
> Steve, which header should I use?

I would say include/linux/preempt.h if Peter doesn't have any issues
with that.

-- Steve