#ifndef _LINUX_LIST_SORT_H
  #define _LINUX_LIST_SORT_H
  
  #include <linux/types.h>
  
  struct list_head;
  
  void list_sort(void *priv, struct list_head *head,
  	       int (*cmp)(void *priv, struct list_head *a,
  			  struct list_head *b));
  #endif