#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/cpu.h>
+#include <linux/slab.h>
#include "offline_states.h"
#include <asm/prom.h>
#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
-static DEFINE_MUTEX(pseries_cpu_hotplug_mutex);
-
-void cpu_hotplug_driver_lock(void)
-__acquires(pseries_cpu_hotplug_mutex)
-{
- mutex_lock(&pseries_cpu_hotplug_mutex);
-}
-
-void cpu_hotplug_driver_unlock(void)
-__releases(pseries_cpu_hotplug_mutex)
-{
- mutex_unlock(&pseries_cpu_hotplug_mutex);
-}
-
static int dlpar_online_cpu(struct device_node *dn)
{
int rc = 0;