#ifndef _ZBUD_H_
  #define _ZBUD_H_
  
  #include <linux/types.h>
  
  struct zbud_pool;
  
  struct zbud_ops {
  	int (*evict)(struct zbud_pool *pool, unsigned long handle);
  };

  struct zbud_pool *zbud_create_pool(gfp_t gfp, const struct zbud_ops *ops);

  void zbud_destroy_pool(struct zbud_pool *pool);

  int zbud_alloc(struct zbud_pool *pool, size_t size, gfp_t gfp,

  	unsigned long *handle);
  void zbud_free(struct zbud_pool *pool, unsigned long handle);
  int zbud_reclaim_page(struct zbud_pool *pool, unsigned int retries);
  void *zbud_map(struct zbud_pool *pool, unsigned long handle);
  void zbud_unmap(struct zbud_pool *pool, unsigned long handle);
  u64 zbud_get_pool_size(struct zbud_pool *pool);
  
  #endif /* _ZBUD_H_ */