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From 23ee148c148ee9f20ce0c414f14f62a113f09a08 Mon Sep 17 00:00:00 2001
From: John Kacur <jkacur@redhat.com>
Date: Mon, 14 Nov 2011 02:44:42 +0100
Subject: [PATCH 186/274] rcu: Fix macro substitution for synchronize_rcu_bh()
on RT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
kernel/rcutorture.c:492: error: ‘synchronize_rcu_bh’ undeclared here (not in a function)
synchronize_rcu_bh() is not just called as a normal function, but can
also be referenced as a function pointer. When CONFIG_PREEMPT_RT_FULL
is enabled, synchronize_rcu_bh() is defined as synchronize_rcu(), but
needs to be defined without the parenthesis because the compiler will
complain when synchronize_rcu_bh is referenced as a function pointer
and not a function.
Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: stable-rt@vger.kernel.org
Link: http://lkml.kernel.org/r/1321235083-21756-1-git-send-email-jkacur@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/rcutree.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 5b2d03e..ba517b5 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -60,7 +60,7 @@ static inline void exit_rcu(void)
#ifndef CONFIG_PREEMPT_RT_FULL
extern void synchronize_rcu_bh(void);
#else
-# define synchronize_rcu_bh() synchronize_rcu()
+# define synchronize_rcu_bh synchronize_rcu
#endif
extern void synchronize_sched_expedited(void);
extern void synchronize_rcu_expedited(void);
--
1.7.10.4
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