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From: Dave Young on 21 Feb 2010 09:30
Extern declarations in sysctl.c should be move to their own head file,
and then include them in relavant .c files.

blk_iopoll_enabled declared in linux/blk-iopoll.h, remove the declaration in
sysctl.c, include the head file instead.

Signed-off-by: Dave Young <hidave.darkstar(a)gmail.com>
---
kernel/sysctl.c | 6 +++---
1 file changed, 3 insertion(+), 3 deletions(-)

--- linux-2.6.32.orig/kernel/sysctl.c 2010-02-21 10:01:30.257204779 +0800
+++ linux-2.6.32/kernel/sysctl.c 2010-02-21 11:16:42.329254793 +0800
@@ -60,6 +60,9 @@
#include <linux/compat.h>
#include <linux/latencytop.h>
#include <linux/file.h>
+#ifdef CONFIG_BLOCK
+#include <linux/blk-iopoll.h>
+#endif

#include <asm/uaccess.h>
#include <asm/processor.h>
@@ -75,9 +78,6 @@

/* External variables not in a header file. */
extern int max_threads;
-#ifdef CONFIG_BLOCK
-extern int blk_iopoll_enabled;
-#endif

/* Constants used for minimum and maximum */
#ifdef CONFIG_DETECT_SOFTLOCKUP
--
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