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From: Dave Young on 20 Feb 2010 09:20
Extern declarations in sysctl.c should be move to their own head file,
and then include them in relavant .c files.

Move pid/pid_max_min/pid_max_max extern declarations to linux/pid.h

Signed-off-by: Dave Young <hidave.darkstar(a)gmail.com>
---
include/linux/pid.h | 5 +++++
kernel/sysctl.c | 3 +--
2 files changed, 6 insertions(+), 2 deletions(-)

--- linux-2.6.32.orig/include/linux/pid.h 2010-02-12 13:14:44.865985182 +0800
+++ linux-2.6.32/include/linux/pid.h 2010-02-12 13:16:24.436926508 +0800
@@ -3,6 +3,11 @@

#include <linux/rcupdate.h>

+#ifdef CONFIG_SYSCTL
+extern int pid_max;
+extern int pid_max_min, pid_max_max;
+#endif
+
enum pid_type
{
PIDTYPE_PID,
--- linux-2.6.32.orig/kernel/sysctl.c 2010-02-12 13:13:47.572658484 +0800
+++ linux-2.6.32/kernel/sysctl.c 2010-02-12 13:16:53.471807743 +0800
@@ -57,6 +57,7 @@
#include <linux/signal.h>
#include <linux/threads.h>
#include <linux/binfmts.h>
+#include <linux/pid.h>

#include <asm/uaccess.h>
#include <asm/processor.h>
@@ -71,9 +72,7 @@
#if defined(CONFIG_SYSCTL)

/* External variables not in a header file. */
-extern int pid_max;
extern int min_free_kbytes;
-extern int pid_max_min, pid_max_max;
extern int compat_log;
extern int latencytop_enabled;
extern int sysctl_nr_open_min, sysctl_nr_open_max;
--
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