linux-kernel - [PATCH v3 5/5] trace: events: rcu: Change description of rcu

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Message-Id: <20200504120505.89351-6-joel@joelfernandes.org>
Date:   Mon,  4 May 2020 08:05:05 -0400
From:   "Joel Fernandes (Google)" <joel@...lfernandes.org>
To:     linux-kernel@...r.kernel.org
Cc:     Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Andy Lutomirski <luto@...nel.org>,
        Frederic Weisbecker <fweisbec@...il.com>, frextrite@...il.com,
        Ingo Molnar <mingo@...hat.com>,
        Josh Triplett <josh@...htriplett.org>, kernel-team@...roid.com,
        Lai Jiangshan <jiangshanlai@...il.com>,
        madhuparnabhowmik04@...il.com,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Paul E. McKenney" <paulmck@...nel.org>, peterz@...radead.org,
        Petr Mladek <pmladek@...e.com>, rcu@...r.kernel.org,
        rostedt@...dmis.org, tglx@...utronix.de, vpillai@...italocean.com
Subject: [PATCH v3 5/5] trace: events: rcu: Change description of rcu_dyntick trace event

From: Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>

The different strings used for describing the polarity are
Start, End and StillNonIdle. Since StillIdle is not used in any trace
point for rcu_dyntick, it can be removed and StillNonIdle can be added
in the description. Because StillNonIdle is used in a few tracepoints for
rcu_dyntick.

Similarly, USER, IDLE and IRQ are used for describing context in
the rcu_dyntick tracepoints. Since, "KERNEL" is not used for any
of the rcu_dyntick tracepoints, remove it from the description.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>
Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>
---
 include/trace/events/rcu.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 164c43b72ca29..02dcd119f3263 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -437,9 +437,9 @@ TRACE_EVENT_RCU(rcu_fqs,
 /*
  * Tracepoint for dyntick-idle entry/exit events.  These take 2 strings
  * as argument:
- * polarilty: "Start", "End", "StillIdle" for entering, exiting or still being
- * in dyntick-idle mode.
- * context: "USER" or "KERNEL" or "IRQ".
+ * polarilty: "Start", "End", "StillNonIdle" for entering, exiting or still not
+ *            being in dyntick-idle mode.
+ * context: "USER" or "IDLE" or "IRQ".
  * NMIs nested in IRQs are inferred with dynticks_nesting > 1 in IRQ context.
  *
  * These events also take a pair of numbers, which indicate the nesting
-- 
2.26.2.526.g744177e7f7-goog