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
Date: Tue, 1 May 2018 10:06:23 -0400 [thread overview]
Message-ID: <20180501100623.7ebec465@gandalf.local.home> (raw)
In-Reply-To: <20180501014204.67548-4-joelaf@google.com>
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
next prev parent reply other threads:[~2018-05-01 14:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-01 1:41 [PATCH RFC v5 0/6] Centralize and unify usage of preempt/irq tracepoints Joel Fernandes
2018-05-01 1:41 ` [PATCH RFC v5 1/6] softirq: reorder trace_softirqs_on to prevent lockdep splat Joel Fernandes
2018-05-01 14:02 ` Steven Rostedt
2018-05-01 15:00 ` Joel Fernandes
2018-05-01 1:42 ` [PATCH RFC v5 2/6] srcu: Add notrace variants of srcu_read_{lock,unlock} Joel Fernandes
2018-05-01 14:04 ` Steven Rostedt
2018-05-01 1:42 ` [PATCH RFC v5 3/6] srcu: Add notrace variant of srcu_dereference Joel Fernandes
2018-05-01 14:06 ` Steven Rostedt [this message]
2018-05-01 15:07 ` Joel Fernandes
2018-05-01 14:18 ` Paul E. McKenney
2018-05-01 15:04 ` Steven Rostedt
2018-05-01 15:27 ` Paul E. McKenney
2018-05-01 1:42 ` [PATCH RFC v5 4/6] trace/irqsoff: Split reset into seperate functions Joel Fernandes
2018-05-01 3:45 ` Randy Dunlap
2018-05-01 3:46 ` [kernel-team] " Joel Fernandes
2018-05-01 1:42 ` [PATCH RFC v5 5/6] tracepoint: Make rcuidle tracepoint callers use SRCU Joel Fernandes
2018-05-01 1:56 ` Joel Fernandes
2018-05-01 14:24 ` Steven Rostedt
2018-05-01 14:24 ` Steven Rostedt
2018-05-01 14:36 ` Paul E. McKenney
2018-05-01 15:16 ` Joel Fernandes
2018-05-01 15:21 ` Paul E. McKenney
2018-05-01 15:23 ` Joel Fernandes
2018-05-01 15:42 ` Paul E. McKenney
2018-05-01 15:53 ` Joel Fernandes
2018-05-01 16:44 ` Joel Fernandes
2018-05-01 1:42 ` [PATCH RFC v5 6/6] tracing: Centralize preemptirq tracepoints and unify their usage Joel Fernandes
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180501100623.7ebec465@gandalf.local.home \
--to=rostedt@goodmis.org \
--cc=baohong.liu@intel.com \
--cc=boqun.feng@gmail.com \
--cc=fengguang.wu@intel.com \
--cc=fweisbec@gmail.com \
--cc=joelaf@google.com \
--cc=kernel-team@android.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mhiramat@kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=peterz@infradead.org \
--cc=rdunlap@infradead.org \
--cc=tglx@linutronix.de \
--cc=tom.zanussi@linux.intel.com \
--cc=vedang.patel@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).