#ifndef _LINUX_CPUPRI_H
  #define _LINUX_CPUPRI_H
  
  #include <linux/sched.h>

  #define CPUPRI_NR_PRIORITIES	(MAX_RT_PRIO + 2)
  #define CPUPRI_NR_PRI_WORDS	BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)

  
  #define CPUPRI_INVALID -1
  #define CPUPRI_IDLE     0
  #define CPUPRI_NORMAL   1
  /* values 2-101 are RT priorities 0-99 */
  
  struct cpupri_vec {

  	raw_spinlock_t lock;

  	int        count;

  	cpumask_var_t mask;

  };
  
  struct cpupri {
  	struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
  	long              pri_active[CPUPRI_NR_PRI_WORDS];
  	int               cpu_to_pri[NR_CPUS];
  };
  
  #ifdef CONFIG_SMP
  int  cpupri_find(struct cpupri *cp,

  		 struct task_struct *p, struct cpumask *lowest_mask);

  void cpupri_set(struct cpupri *cp, int cpu, int pri);

  int cpupri_init(struct cpupri *cp);

  void cpupri_cleanup(struct cpupri *cp);

  #else
  #define cpupri_set(cp, cpu, pri) do { } while (0)
  #define cpupri_init() do { } while (0)
  #endif
  
  #endif /* _LINUX_CPUPRI_H */