1 /* 2 File: linux/mbcache.h 3 4 (C) 2001 by Andreas Gruenbacher, <[email protected]> 5 */ 6 7 struct mb_cache_entry { 8 struct list_head e_lru_list; 9 struct mb_cache *e_cache; 10 unsigned short e_used; 11 unsigned short e_queued; 12 struct block_device *e_bdev; 13 sector_t e_block; 14 struct list_head e_block_list; 15 struct { 16 struct list_head o_list; 17 unsigned int o_key; 18 } e_index; 19 }; 20 21 /* Functions on caches */ 22 23 struct mb_cache *mb_cache_create(const char *, int); 24 void mb_cache_shrink(struct block_device *); 25 void mb_cache_destroy(struct mb_cache *); 26 27 /* Functions on cache entries */ 28 29 struct mb_cache_entry *mb_cache_entry_alloc(struct mb_cache *, gfp_t); 30 int mb_cache_entry_insert(struct mb_cache_entry *, struct block_device *, 31 sector_t, unsigned int); 32 void mb_cache_entry_release(struct mb_cache_entry *); 33 void mb_cache_entry_free(struct mb_cache_entry *); 34 struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *, 35 struct block_device *, 36 sector_t); 37 struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache, 38 struct block_device *, 39 unsigned int); 40 struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *, 41 struct block_device *, 42 unsigned int); 43