linux-kernel - [PATCH 1/2 UPDATED] klist: implement KLIST_INIT() and DEFINE

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Message-ID: <48121FE4.5010803@gmail.com>
Date:	Sat, 26 Apr 2008 03:16:04 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Greg KH <greg@...ah.com>
CC:	Peter Zijlstra <peterz@...radead.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Andrew Morton <akpm@...ux-foundation.org>, oliver@...kum.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>, zaitcev@...hat.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-usb@...r.kernel.org
Subject: [PATCH 1/2 UPDATED] klist: implement KLIST_INIT() and DEFINE_KLIST()

klist is missing static initializers and definition helper.  Add them.

Signed-off-by: Tejun Heo <htejun@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
---
Updated to use _name.k_lock as advised.

Thanks.

 include/linux/klist.h |    8 ++++++++
 1 file changed, 8 insertions(+)

Index: work/include/linux/klist.h
===================================================================
--- work.orig/include/linux/klist.h
+++ work/include/linux/klist.h
@@ -25,6 +25,14 @@ struct klist {
 	void			(*put)(struct klist_node *);
 };
 
+#define KLIST_INIT(_name, _get, _put)					\
+	{ .k_lock	= __SPIN_LOCK_UNLOCKED(_name.k_lock),		\
+	  .k_list	= LIST_HEAD_INIT(_name.k_list),			\
+	  .get		= _get,						\
+	  .put		= _put, }
+
+#define DEFINE_KLIST(_name, _get, _put)					\
+	struct klist _name = KLIST_INIT(_name, _get, _put)
 
 extern void klist_init(struct klist * k, void (*get)(struct klist_node *),
 		       void (*put)(struct klist_node *));
--
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