linux-kernel - [PATCH 2/7] rcu: fix tracepoint string when RCU CPU kthread runs

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Message-Id: <20191015102402.1978-3-laijs@linux.alibaba.com>
Date:   Tue, 15 Oct 2019 10:23:57 +0000
From:   Lai Jiangshan <laijs@...ux.alibaba.com>
To:     linux-kernel@...r.kernel.org
Cc:     Lai Jiangshan <laijs@...ux.alibaba.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Josh Triplett <josh@...htriplett.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Joel Fernandes <joel@...lfernandes.org>, rcu@...r.kernel.org
Subject: [PATCH 2/7] rcu: fix tracepoint string when RCU CPU kthread runs

"rcu_wait" is incorrct here, use "rcu_run" instead.

Signed-off-by: Lai Jiangshan <jiangshanlai@...il.com>
Signed-off-by: Lai Jiangshan <laijs@...ux.alibaba.com>
---
 kernel/rcu/tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 278798e58698..c351fc280945 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2485,7 +2485,7 @@ static void rcu_cpu_kthread(unsigned int cpu)
 	int spincnt;
 
 	for (spincnt = 0; spincnt < 10; spincnt++) {
-		trace_rcu_utilization(TPS("Start CPU kthread@..._wait"));
+		trace_rcu_utilization(TPS("Start CPU kthread@..._run"));
 		local_bh_disable();
 		*statusp = RCU_KTHREAD_RUNNING;
 		local_irq_disable();
@@ -2496,7 +2496,7 @@ static void rcu_cpu_kthread(unsigned int cpu)
 			rcu_core();
 		local_bh_enable();
 		if (*workp == 0) {
-			trace_rcu_utilization(TPS("End CPU kthread@..._wait"));
+			trace_rcu_utilization(TPS("End CPU kthread@..._run"));
 			*statusp = RCU_KTHREAD_WAITING;
 			return;
 		}
-- 
2.20.1