50 #define btrfs_lru_cache_for_each_entry_safe(cache, entry, tmp)		\  argument
51 	list_for_each_entry_safe_reverse((entry), (tmp), &(cache)->lru_list, lru_list)
53 static inline unsigned int btrfs_lru_cache_size(const struct btrfs_lru_cache *cache)  in btrfs_lru_cache_size()  argument
55 	return cache->size;  in btrfs_lru_cache_size()
59 					      struct btrfs_lru_cache *cache)  in btrfs_lru_cache_lru_entry()  argument
61 	return list_first_entry_or_null(&cache->lru_list,  in btrfs_lru_cache_lru_entry()
65 void btrfs_lru_cache_init(struct btrfs_lru_cache *cache, unsigned int max_size);
66 struct btrfs_lru_cache_entry *btrfs_lru_cache_lookup(struct btrfs_lru_cache *cache,
68 int btrfs_lru_cache_store(struct btrfs_lru_cache *cache,
71 void btrfs_lru_cache_remove(struct btrfs_lru_cache *cache,
73 void btrfs_lru_cache_clear(struct btrfs_lru_cache *cache);