linux-kernel - [PATCH] cpu hotplug: remove unused cpuhotplug_mutex

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Date:	Fri, 06 Feb 2009 14:39:17 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Gautham R Shenoy <ego@...ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] cpu hotplug: remove unused cpuhotplug_mutex_lock()


cpuhotplug_mutex_lock() is not used. this patch remove it.

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
 cpu.h |   16 ----------------
 1 file changed, 16 deletions(-)
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index c2747ac..2643d84 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -23,7 +23,6 @@
 #include <linux/node.h>
 #include <linux/compiler.h>
 #include <linux/cpumask.h>
-#include <linux/mutex.h>
 
 struct cpu {
 	int node_id;		/* The node which contains the CPU */
@@ -103,16 +102,6 @@ extern struct sysdev_class cpu_sysdev_class;
 #ifdef CONFIG_HOTPLUG_CPU
 /* Stop CPUs going up and down. */
 
-static inline void cpuhotplug_mutex_lock(struct mutex *cpu_hp_mutex)
-{
-	mutex_lock(cpu_hp_mutex);
-}
-
-static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex)
-{
-	mutex_unlock(cpu_hp_mutex);
-}
-
 extern void get_online_cpus(void);
 extern void put_online_cpus(void);
 #define hotcpu_notifier(fn, pri) {				\
@@ -126,11 +115,6 @@ int cpu_down(unsigned int cpu);
 
 #else		/* CONFIG_HOTPLUG_CPU */
 
-static inline void cpuhotplug_mutex_lock(struct mutex *cpu_hp_mutex)
-{ }
-static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex)
-{ }
-
 #define get_online_cpus()	do { } while (0)
 #define put_online_cpus()	do { } while (0)
 #define hotcpu_notifier(fn, pri)	do { (void)(fn); } while (0)


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