x86_64: unstatic get_local_pda

This allows Xen's xen_cpu_up() to allocate a pda for the new CPU.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/smpboot.c

@@ -768,7 +768,7 @@ static void __cpuinit do_fork_idle(struct work_struct *work)
  *
  * Must be called after the _cpu_pda pointer table is initialized.
  */
-static int __cpuinit get_local_pda(int cpu)
+int __cpuinit get_local_pda(int cpu)
 {
 	struct x8664_pda *oldpda, *newpda;
 	unsigned long size = sizeof(struct x8664_pda);

include/asm-x86/smp.h

@@ -25,6 +25,8 @@ extern cpumask_t cpu_callin_map;
 extern void (*mtrr_hook)(void);
 extern void zap_low_mappings(void);
 
+extern int __cpuinit get_local_pda(int cpu);
+
 extern int smp_num_siblings;
 extern unsigned int num_processors;
 extern cpumask_t cpu_initialized;