linux-kernel - [PATCH -mm 09/17] sysctl extern cleanup

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Message-ID: <20100221142412.GA3011@darkstar>
Date:	Sun, 21 Feb 2010 22:24:12 +0800
From:	Dave Young <hidave.darkstar@...il.com>
To:	Dipankar Sarma <dipankar@...ibm.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Vegard Nossum <vegard.nossum@...il.com>,
	Josh Triplett <josh@...htriplett.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	James Morris <jmorris@...ei.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH -mm 09/17] sysctl extern cleanup - rcu

Extern declarations in sysctl.c should be move to their own head file,
and then include them in relavant .c files.

Move rcutorture_runnable extern declaration to linux/rcupdate.h

Signed-off-by: Dave Young <hidave.darkstar@...il.com>
Acked-by: Josh Triplett <josh@...htriplett.org>
---
 include/linux/rcupdate.h |    4 ++++
 kernel/sysctl.c          |    3 ---
 2 files changed, 4 insertions(+), 3 deletions(-)

--- linux-2.6.32.orig/include/linux/rcupdate.h	2010-02-21 09:35:58.013190490 +0800
+++ linux-2.6.32/include/linux/rcupdate.h	2010-02-21 10:03:53.296358225 +0800
@@ -41,6 +41,10 @@
 #include <linux/lockdep.h>
 #include <linux/completion.h>
 
+#ifdef CONFIG_RCU_TORTURE_TEST
+extern int rcutorture_runnable; /* for sysctl */
+#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
+
 /**
  * struct rcu_head - callback structure for use with RCU
  * @next: next update requests in a list
--- linux-2.6.32.orig/kernel/sysctl.c	2010-02-21 09:58:40.029722800 +0800
+++ linux-2.6.32/kernel/sysctl.c	2010-02-21 10:01:30.257204779 +0800
@@ -75,9 +75,6 @@
 
 /* External variables not in a header file. */
 extern int max_threads;
-#ifdef CONFIG_RCU_TORTURE_TEST
-extern int rcutorture_runnable;
-#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
 #ifdef CONFIG_BLOCK
 extern int blk_iopoll_enabled;
 #endif
--
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