linux-kernel - [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

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Date:	Tue, 7 Aug 2012 16:43:25 +0800
From:	Zhao Chenhui <chenhui.zhao@...escale.com>
To:	<linuxppc-dev@...ts.ozlabs.org>, <galak@...nel.crashing.org>
CC:	<linux-kernel@...r.kernel.org>, <leoli@...escale.com>
Subject: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily.
Therefore, the related functions should be exported.

Signed-off-by: Zhao Chenhui <chenhui.zhao@...escale.com>
---
 include/linux/cpu.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ce7a074..df8f73d 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -146,6 +146,8 @@ void notify_cpu_starting(unsigned int cpu);
 extern void cpu_maps_update_begin(void);
 extern void cpu_maps_update_done(void);
 
+extern void cpu_hotplug_disable_before_freeze(void);
+extern void cpu_hotplug_enable_after_thaw(void);
 #else	/* CONFIG_SMP */
 
 #define cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
@@ -167,6 +169,8 @@ static inline void cpu_maps_update_done(void)
 {
 }
 
+static inline void cpu_hotplug_disable_before_freeze(void)	{}
+static inline void cpu_hotplug_enable_after_thaw(void)	{}
 #endif /* CONFIG_SMP */
 extern struct bus_type cpu_subsys;
 
-- 
1.6.4.1


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