linux/kernel/up.c
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   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/export.h>
   8#include <linux/smp.h>
   9
  10int 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}
  21EXPORT_SYMBOL(smp_call_function_single);
  22
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