linux-kernel - [PATCH tip/core/rcu 1/2] rcu: make lockdep_rcu

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Message-Id: <1267135607-7056-1-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Thu, 25 Feb 2010 14:06:46 -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, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	Valdis.Kletnieks@...edu, dhowells@...hat.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 1/2] rcu: make lockdep_rcu_dereference() message less alarmist

Change from "unsafe" to "suspicious", given that there will be false
alarms.

Suggested-by: Ingo Molnar <mingo@...e.hu>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
 kernel/lockdep.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 672c436..0c30d04 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -3816,9 +3816,9 @@ void lockdep_rcu_dereference(const char *file, const int line)
 
 	if (!debug_locks_off())
 		return;
-	printk("\n==============================================\n");
-	printk(  "[ BUG: Unsafe rcu_dereference_check() usage! ]\n");
-	printk(  "----------------------------------------------\n");
+	printk("\n===================================================\n");
+	printk(  "[ INFO: suspicious rcu_dereference_check() usage. ]\n");
+	printk(  "---------------------------------------------------\n");
 	printk("%s:%d invoked rcu_dereference_check() without protection!\n",
 			file, line);
 	printk("\nother info that might help us debug this:\n\n");
-- 
1.6.6

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