[PATCH 1/9] include/linux/cpu.h: Define architecture dependent cpu map update and state check functions

["Fenghua Yu" <fenghua.yu@intel.com>]

From: Fenghua Yu <fenghua.yu@intel.com>

arch_cpu_maps_update_begin() and arch_cpu_maps_update_done() are architecture
dependent cpu map update functions which are called during cpu_up() and
cpu_down().

arch_state_check() is architecture dependent state check function which is
called during hibernate and suspend.

They are empty __weak functions and are overriden in x86.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
---
 include/linux/cpu.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index b1a635a..88a6390 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -137,6 +137,8 @@ int cpu_up(unsigned int cpu);
 void notify_cpu_starting(unsigned int cpu);
 extern void cpu_maps_update_begin(void);
 extern void cpu_maps_update_done(void);
+extern void arch_cpu_maps_update_begin(void);
+extern void arch_cpu_maps_update_done(void);
 
 #else	/* CONFIG_SMP */
 
@@ -207,4 +209,8 @@ static inline int disable_nonboot_cpus(void) { return 0; }
 static inline void enable_nonboot_cpus(void) {}
 #endif /* !CONFIG_PM_SLEEP_SMP */
 
+#ifdef CONFIG_PM
+extern int  arch_state_check(void);
+#endif
+
 #endif /* _LINUX_CPU_H_ */
-- 
1.6.0.3