mempool.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:1k
- /*
- * memory buffer pool support
- */
- #ifndef _LINUX_MEMPOOL_H
- #define _LINUX_MEMPOOL_H
- #include <linux/wait.h>
- typedef void * (mempool_alloc_t)(gfp_t gfp_mask, void *pool_data);
- typedef void (mempool_free_t)(void *element, void *pool_data);
- typedef struct mempool_s {
- spinlock_t lock;
- int min_nr; /* nr of elements at *elements */
- int curr_nr; /* Current nr of elements at *elements */
- void **elements;
- void *pool_data;
- mempool_alloc_t *alloc;
- mempool_free_t *free;
- wait_queue_head_t wait;
- } mempool_t;
- extern mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
- mempool_free_t *free_fn, void *pool_data);
- extern mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
- mempool_free_t *free_fn, void *pool_data, int nid);
- extern int mempool_resize(mempool_t *pool, int new_min_nr, gfp_t gfp_mask);
- extern void mempool_destroy(mempool_t *pool);
- extern void * mempool_alloc(mempool_t *pool, gfp_t gfp_mask);
- extern void mempool_free(void *element, mempool_t *pool);
- /*
- * A mempool_alloc_t and mempool_free_t that get the memory from
- * a slab that is passed in through pool_data.
- */
- void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data);
- void mempool_free_slab(void *element, void *pool_data);
- #endif /* _LINUX_MEMPOOL_H */