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

From: Zhao Chenhui
Date: Tue Aug 07 2012 - 04:41:46 EST


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@xxxxxxxxxxxxx>
---
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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