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>

4 files changed, 18 insertions, 19 deletions

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index c2a11d77b1b5..9a139f6c9df3 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 820c23dbe761..67af727f733a 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;
diff --git a/include/asm-x86/numa_32.h b/include/asm-x86/numa_32.h
index a02674f64869..ed6c88eac848 100644
--- a/include/asm-x86/numa_32.h
+++ b/include/asm-x86/numa_32.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_32_NUMA_H 1
 
 extern int pxm_to_nid(int pxm);
+extern void numa_remove_cpu(int cpu);
 
 #ifdef CONFIG_NUMA
 extern void __init remap_numa_kva(void);
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index fc1007321ef6..fad45f6a193f 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -188,7 +188,6 @@ static inline int hard_smp_processor_id(void)
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_HOTPLUG_CPU
-extern void cpu_exit_clear(void);
 extern void cpu_uninit(void);
 #endif