Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Thu, 16 Apr 2020 00:40:56 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     John Stultz <john.stultz@linaro.org>, paulmck@kernel.org,
        Josh Triplett <josh@joshtriplett.org>,
        lkml <linux-kernel@vger.kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Saravana Kannan <saravanak@google.com>,
        Todd Kjos <tkjos@google.com>, Stephen Boyd <sboyd@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: On trace_*_rcuidle functions in modules
Message-ID: <20200415224056.GO2483@worktop.programming.kicks-ass.net>
References: <CALAqxLV4rM74wuzuZ+BkUi+keccxkAxv30N4vrFO7CVQ5vnT1A@mail.gmail.com>
 <20200415085348.5511a5fe@gandalf.local.home>
 <CALAqxLV1A6sOC1GWpFYXeBoDff0+AJgoOYK7NktcTdvX3kvAeg@mail.gmail.com>
 <20200415161424.584d07d3@gandalf.local.home>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20200415161424.584d07d3@gandalf.local.home>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, Apr 15, 2020 at 04:14:24PM -0400, Steven Rostedt wrote:
> Which was added because the rcuidle variant called RCU code that was not
> exported either. Which would have the same issue now as
> rcu_irq_exit_irqson() is also not exported. Which would be needed.

Keeping all RCU_NONIDLE code in the core kernel allows us to eventually
clean it all up. Allowing it to escape into modules makes that ever so
much harder :/