linux-kernel - [PATCH 13/18] sysctl extern cleanup

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Date:	Sat, 20 Feb 2010 22:19:03 +0800
From:	Dave Young <hidave.darkstar@...il.com>
To:	Doug Gilbert <dgilbert@...erlog.com>,
	"James E.J. Bottomley" <James.Bottomley@...e.de>,
	Ingo Molnar <mingo@...e.hu>,
	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-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 13/18] sysctl extern cleanup - sg

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

Move sg_big_buff extern declaration to scsi/sg.h

Signed-off-by: Dave Young <hidave.darkstar@...il.com>
---
 include/scsi/sg.h |    5 +++++
 kernel/sysctl.c   |    5 +----
 2 files changed, 6 insertions(+), 4 deletions(-)

--- linux-2.6.32.orig/include/scsi/sg.h	2010-02-20 14:02:18.708258892 +0800
+++ linux-2.6.32/include/scsi/sg.h	2010-02-20 14:39:48.631369361 +0800
@@ -70,6 +70,11 @@ Major new features in SG 3.x driver (cf 
  (for the lk 2.2 series).
 */
 
+#ifdef __KERNEL__
+#if defined(CONFIG_SYSCTL) && defined(CONFIG_CHR_DEV_SG)
+extern int sg_big_buff;
+#endif
+#endif
 
 /* New interface introduced in the 3.x SG drivers follows */
 
--- linux-2.6.32.orig/kernel/sysctl.c	2010-02-20 14:27:50.691439411 +0800
+++ linux-2.6.32/kernel/sysctl.c	2010-02-20 14:38:51.008872869 +0800
@@ -62,6 +62,7 @@
 #include <linux/latencytop.h>
 #include <linux/file.h>
 #include <linux/blk-iopoll.h>
+#include <scsi/sg.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
@@ -100,10 +101,6 @@ static int min_percpu_pagelist_fract = 8
 
 static int ngroups_max = NGROUPS_MAX;
 
-#ifdef CONFIG_CHR_DEV_SG
-extern int sg_big_buff;
-#endif
-
 #ifdef CONFIG_SPARC
 #include <asm/system.h>
 #endif
--
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