#include <linux/cpu.h>
#include <linux/kthread.h>
#include <linux/rcupdate.h>
+#include <linux/smp.h>
#include <asm/irq.h>
/*
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
+ if (!per_cpu(ksoftirqd, hotcpu))
+ break;
/* Unbind so it can run. Fall thru. */
kthread_bind(per_cpu(ksoftirqd, hotcpu),
any_online_cpu(cpu_online_map));
register_cpu_notifier(&cpu_nfb);
return 0;
}
+
+#ifdef CONFIG_SMP
+/*
+ * Call a function on all processors
+ */
+int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait)
+{
+ int ret = 0;
+
+ preempt_disable();
+ ret = smp_call_function(func, info, retry, wait);
+ local_irq_disable();
+ func(info);
+ local_irq_enable();
+ preempt_enable();
+ return ret;
+}
+EXPORT_SYMBOL(on_each_cpu);
+#endif