linux-kernel - [PATCH tip/core/rcu 3/6] rcu: Use new nesting value for rcu_dyntick trace in rcu_eqs_enter

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Message-Id: <1357405778-13903-3-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Sat,  5 Jan 2013 09:09:35 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, edumazet@...gle.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu, patches@...aro.org,
	Li Zhong <zhong@...ux.vnet.ibm.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 3/6] rcu: Use new nesting value for rcu_dyntick trace in rcu_eqs_enter_common

From: Li Zhong <zhong@...ux.vnet.ibm.com>

This patch uses the real new value of dynticks_nesting instead of 0 in
rcu_eqs_enter_common().

Signed-off-by: Li Zhong <zhong@...ux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/rcutree.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index cceda76..d145796 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -336,7 +336,7 @@ static struct rcu_node *rcu_get_root(struct rcu_state *rsp)
 static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
 				bool user)
 {
-	trace_rcu_dyntick("Start", oldval, 0);
+	trace_rcu_dyntick("Start", oldval, rdtp->dynticks_nesting);
 	if (!user && !is_idle_task(current)) {
 		struct task_struct *idle = idle_task(smp_processor_id());
 
-- 
1.7.8

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