x86/xen: rename some PV-only functions in smp_pv.c

After code split between PV and HVM some functions in xen_smp_ops have
xen_pv_ prefix and some only xen_ which makes them look like they're
common for both PV and HVM while they're not. Rename all the rest to
have xen_pv_ prefix.

Signed-off-by: Vitaly Kuznetsov <[e-mail]>
Reviewed-by: Juergen Gross <[e-mail]>
Signed-off-by: Juergen Gross <[e-mail]>

arch/x86/xen/smp_pv.c

···
 	xen_init_spinlocks();
 }
 
-static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
+static void __init xen_pv_smp_prepare_cpus(unsigned int max_cpus)
 {
 	unsigned cpu;
 	unsigned int i;
···
 	return 0;
 }
 
-static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
+static int xen_pv_cpu_up(unsigned int cpu, struct task_struct *idle)
 {
 	int rc;
 
···
 	return 0;
 }
 
-static void xen_smp_cpus_done(unsigned int max_cpus)
+static void xen_pv_smp_cpus_done(unsigned int max_cpus)
 {
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-static int xen_cpu_disable(void)
+static int xen_pv_cpu_disable(void)
 {
 	unsigned int cpu = smp_processor_id();
 	if (cpu == 0)
···
 	}
 }
 
-static void xen_play_dead(void) /* used only with HOTPLUG_CPU */
+static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */
 {
 	play_dead_common();
 	HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(smp_processor_id()), NULL);
···
 }
 
 #else /* !CONFIG_HOTPLUG_CPU */
-static int xen_cpu_disable(void)
+static int xen_pv_cpu_disable(void)
 {
 	return -ENOSYS;
 }
···
 	BUG();
 }
 
-static void xen_play_dead(void)
+static void xen_pv_play_dead(void)
 {
 	BUG();
 }
···
 	BUG();
 }
 
-static void xen_stop_other_cpus(int wait)
+static void xen_pv_stop_other_cpus(int wait)
 {
 	smp_call_function(stop_self, NULL, wait);
 }
···
 
 static const struct smp_ops xen_smp_ops __initconst = {
 	.smp_prepare_boot_cpu = xen_pv_smp_prepare_boot_cpu,
-	.smp_prepare_cpus = xen_smp_prepare_cpus,
-	.smp_cpus_done = xen_smp_cpus_done,
+	.smp_prepare_cpus = xen_pv_smp_prepare_cpus,
+	.smp_cpus_done = xen_pv_smp_cpus_done,
 
-	.cpu_up = xen_cpu_up,
+	.cpu_up = xen_pv_cpu_up,
 	.cpu_die = xen_pv_cpu_die,
-	.cpu_disable = xen_cpu_disable,
-	.play_dead = xen_play_dead,
+	.cpu_disable = xen_pv_cpu_disable,
+	.play_dead = xen_pv_play_dead,
 
-	.stop_other_cpus = xen_stop_other_cpus,
+	.stop_other_cpus = xen_pv_stop_other_cpus,
 	.smp_send_reschedule = xen_smp_send_reschedule,
 
 	.send_call_func_ipi = xen_smp_send_call_function_ipi,