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Date: Tue, 1 May 2018 10:06:23 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Joel Fernandes <joelaf@google.com>
Cc: linux-kernel@vger.kernel.org, Peter Zilstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Tom Zanussi <tom.zanussi@linux.intel.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Thomas Glexiner <tglx@linutronix.de>,
        Boqun Feng <boqun.feng@gmail.com>,
        Paul McKenney <paulmck@linux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Fenguang Wu <fengguang.wu@intel.com>,
        Baohong Liu <baohong.liu@intel.com>,
        Vedang Patel <vedang.patel@intel.com>, kernel-team@android.com
Subject: Re: [PATCH RFC v5 3/6] srcu: Add notrace variant of
 srcu_dereference
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On Mon, 30 Apr 2018 18:42:01 -0700
Joel Fernandes <joelaf@google.com> wrote:

> In this series, we are making lockdep use an rcuidle tracepoint. For
> this reason we need a notrace variant of srcu_dereference since
> otherwise we get lockdep splats since lockdep hooks may not have run
> yet. This patch adds the needed variant.

This change log is rather confusing. Why would lockdep use an rcuidle
tracepoint? I think we need to explain more here.

-- Steve