x86: move cpu_exit_clear to process_32.c

Take it out of smpboot.c, and move it to process_32.c, closer
to its only user.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 17 insertions, 18 deletions

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index c2a11d77b1b..9a139f6c9df 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -74,6 +74,22 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 
 #ifdef CONFIG_HOTPLUG_CPU
 #include <asm/nmi.h>
+
+static void cpu_exit_clear(void)
+{
+	int cpu = raw_smp_processor_id();
+
+	idle_task_exit();
+
+	cpu_uninit();
+	irq_ctx_exit(cpu);
+
+	cpu_clear(cpu, cpu_callout_map);
+	cpu_clear(cpu, cpu_callin_map);
+
+	numa_remove_cpu(cpu);
+}
+
 /* We don't actually take CPU down, just spin without interrupts. */
 static inline void play_dead(void)
 {
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 820c23dbe76..67af727f733 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -181,7 +181,7 @@ static void map_cpu_to_logical_apicid(void)
 	map_cpu_to_node(cpu, node);
 }
 
-static void numa_remove_cpu(int cpu)
+void numa_remove_cpu(int cpu)
 {
 	cpu_2_logical_apicid[cpu] = BAD_APICID;
 	unmap_cpu_to_node(cpu);
@@ -1227,23 +1227,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
 
 #ifdef CONFIG_HOTPLUG_CPU
 
-#  ifdef CONFIG_X86_32
-void cpu_exit_clear(void)
-{
-	int cpu = raw_smp_processor_id();
-
-	idle_task_exit();
-
-	cpu_uninit();
-	irq_ctx_exit(cpu);
-
-	cpu_clear(cpu, cpu_callout_map);
-	cpu_clear(cpu, cpu_callin_map);
-
-	numa_remove_cpu(cpu);
-}
-#  endif /* CONFIG_X86_32 */
-
 static void remove_siblinginfo(int cpu)
 {
 	int sibling;