linux-kernel - [PATCH 1/3] kernel/srcu: merge common code into a macro

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Date:	Tue, 19 Mar 2013 15:16:44 +0100
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Lai Jiangshan <laijs@...fujitsu.com>, linux-kernel@...r.kernel.org,
	tglx@...utronix.de,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: [PATCH 1/3] kernel/srcu: merge common code into a macro

DEFINE_SRCU() and DEFINE_STATIC_SRCU() does the same thing except for
the "static" attribute. This patch moves the common pieces into
_DEFINE_SRCU() which is used by the the former macros either adding the
static attribute or not.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---
 include/linux/srcu.h |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 6eb691b..d04acb8 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -102,13 +102,13 @@ void process_srcu(struct work_struct *work);
  * define and init a srcu struct at build time.
  * dont't call init_srcu_struct() nor cleanup_srcu_struct() on it.
  */
-#define DEFINE_SRCU(name)						\
+#define _DEFINE_SRCU(name, mod)						\
 	static DEFINE_PER_CPU(struct srcu_struct_array, name##_srcu_array);\
-	struct srcu_struct name = __SRCU_STRUCT_INIT(name);
+	mod struct srcu_struct name =					\
+				__SRCU_STRUCT_INIT(name);
 
-#define DEFINE_STATIC_SRCU(name)					\
-	static DEFINE_PER_CPU(struct srcu_struct_array, name##_srcu_array);\
-	static struct srcu_struct name = __SRCU_STRUCT_INIT(name);
+#define DEFINE_SRCU(name)		_DEFINE_SRCU(name, )
+#define DEFINE_STATIC_SRCU(name)	_DEFINE_SRCU(name, static)
 
 /**
  * call_srcu() - Queue a callback for invocation after an SRCU grace period
-- 
1.7.10.4

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