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From: Frederic Weisbecker <fweisbec@gmail.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Josh Triplett <josh@joshtriplett.org>
Subject: [PATCH 2/4] rcu: Irq nesting is always 0 on rcu_enter_idle_common
Date: Mon, 28 Nov 2011 22:24:45 +0100	[thread overview]
Message-ID: <1322515487-18690-3-git-send-email-fweisbec@gmail.com> (raw)
In-Reply-To: <1322515487-18690-1-git-send-email-fweisbec@gmail.com>

So pass 0 directly as a nesting value on the tracing calls.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutree.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index c2aaadf..b80cb41 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -350,11 +350,10 @@ static int rcu_implicit_offline_qs(struct rcu_data *rdp)
  */
 static void rcu_idle_enter_common(struct rcu_dynticks *rdtp)
 {
-	trace_rcu_dyntick("Start", rdtp->dynticks_nesting);
+	trace_rcu_dyntick("Start", 0);
 	if (!idle_cpu(smp_processor_id())) {
 		WARN_ON_ONCE(1);	/* must be idle task! */
-		trace_rcu_dyntick("Error on entry: not idle task",
-				   rdtp->dynticks_nesting);
+		trace_rcu_dyntick("Error on entry: not idle task", 0);
 		ftrace_dump(DUMP_ALL);
 	}
 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
-- 
1.7.5.4


  parent reply	other threads:[~2011-11-28 21:25 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-28 21:24 [PATCH 0/4] rcu: Make new RCU dynticks API work with nohz cpusets Frederic Weisbecker
2011-11-28 21:24 ` [PATCH 1/4] rcu: Don't check irq nesting from rcu idle entry/exit Frederic Weisbecker
2011-11-29  0:22   ` Paul E. McKenney
2011-11-29  0:26     ` Frederic Weisbecker
2011-11-29  0:39       ` Paul E. McKenney
2011-11-29  0:58         ` Frederic Weisbecker
2011-11-28 21:24 ` Frederic Weisbecker [this message]
2011-11-29  0:29   ` [PATCH 2/4] rcu: Irq nesting is always 0 on rcu_enter_idle_common Paul E. McKenney
2011-11-29  1:00     ` Frederic Weisbecker
2011-11-28 21:24 ` [PATCH 3/4 RFC] rcu: New rcu_user_enter() and rcu_user_exit() APIs Frederic Weisbecker
2011-11-28 21:24 ` [PATCH 4/4 RFC] rcu: New rcu_user_enter_irq() and rcu_user_exit_irq() APIs Frederic Weisbecker
2011-11-28 21:53   ` Josh Triplett
2011-11-29  1:00     ` Paul E. McKenney
2011-11-29  5:21       ` Josh Triplett
2011-11-29 14:05       ` Frederic Weisbecker
2011-11-29 18:23         ` Paul E. McKenney
2011-11-29 13:53     ` Frederic Weisbecker
2011-11-29  5:22 ` [PATCH 0/4] rcu: Make new RCU dynticks API work with nohz cpusets Josh Triplett
2011-11-29  5:43   ` Paul E. McKenney
2011-11-29  8:48     ` Josh Triplett
2011-11-29 17:44       ` Paul E. McKenney
2011-11-29 18:07         ` Frederic Weisbecker

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