x86: add cpu hotplug hooks into smp_ops

Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 13 insertions, 9 deletions

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 3b7a1ddcc0bc..e382fe0ccd66 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -91,7 +91,7 @@ static void cpu_exit_clear(void)
 }
 
 /* We don't actually take CPU down, just spin without interrupts. */
-static inline void play_dead(void)
+void native_play_dead(void)
 {
         /* This must be done before dead CPU ack */
         cpu_exit_clear();
@@ -107,7 +107,7 @@ static inline void play_dead(void)
         wbinvd_halt();
 }
 #else
-static inline void play_dead(void)
+void native_play_dead(void)
 {
         BUG();
 }
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 71553b664e2a..dfd3f5752085 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -90,7 +90,7 @@ DECLARE_PER_CPU(int, cpu_state);
 
 #include <asm/nmi.h>
 /* We halt the CPU with physical CPU hotplug */
-static inline void play_dead(void)
+void native_play_dead(void)
 {
         idle_task_exit();
         mb();
@@ -102,7 +102,7 @@ static inline void play_dead(void)
         wbinvd_halt();
 }
 #else
-static inline void play_dead(void)
+void native_play_dead(void)
 {
         BUG();
 }
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 361b7a4c640c..18f9b19f5f8f 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -214,12 +214,16 @@ void smp_call_function_single_interrupt(struct pt_regs *regs)
 struct smp_ops smp_ops = {
         .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
         .smp_prepare_cpus = native_smp_prepare_cpus,
-        .cpu_up = native_cpu_up,
         .smp_cpus_done = native_smp_cpus_done,
 
         .smp_send_stop = native_smp_send_stop,
         .smp_send_reschedule = native_smp_send_reschedule,
 
+        .cpu_up = native_cpu_up,
+        .cpu_die = native_cpu_die,
+        .cpu_disable = native_cpu_disable,
+        .play_dead = native_play_dead,
+
         .send_call_func_ipi = native_send_call_func_ipi,
         .send_call_func_single_ipi = native_send_call_func_single_ipi,
 };
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 7985c5b3f916..c414cee296ba 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1346,7 +1346,7 @@ static void __ref remove_cpu_from_maps(int cpu)
         numa_remove_cpu(cpu);
 }
 
-int __cpu_disable(void)
+int native_cpu_disable(void)
 {
         int cpu = smp_processor_id();
 
@@ -1385,7 +1385,7 @@ int __cpu_disable(void)
         return 0;
 }
 
-void __cpu_die(unsigned int cpu)
+void native_cpu_die(unsigned int cpu)
 {
         /* We don't do anything here: idle task is faking death itself. */
         unsigned int i;
@@ -1403,12 +1403,12 @@ void __cpu_die(unsigned int cpu)
         printk(KERN_ERR "CPU %u didn't die...\n", cpu);
 }
 #else /* ... !CONFIG_HOTPLUG_CPU */
-int __cpu_disable(void)
+int native_cpu_disable(void)
 {
         return -ENOSYS;
 }
 
-void __cpu_die(unsigned int cpu)
+void native_cpu_die(unsigned int cpu)
 {
         /* We said "no" in __cpu_disable */
         BUG();