kernel/up.c

   1 /*
   2  * Uniprocessor-only support functions.  The counterpart to kernel/smp.c
   3  */
   4
   5 #include <linux/interrupt.h>
   6 #include <linux/kernel.h>
   7 #include <linux/module.h>
   8 #include <linux/smp.h>
   9
  10 int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
  11                                 int wait)
  12 {
  13         WARN_ON(cpu != 0);
  14
  15         local_irq_disable();
  16         (func)(info);
  17         local_irq_enable();
  18
  19         return 0;
  20 }
  21 EXPORT_SYMBOL(smp_call_function_single);