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7struct 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
21struct mb_cache {
22 struct list_head c_cache_list;
23 const char *c_name;
24 atomic_t c_entry_count;
25 int c_max_entries;
26 int c_bucket_bits;
27 struct kmem_cache *c_entry_cache;
28 struct list_head *c_block_hash;
29 struct list_head *c_index_hash;
30};
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34struct mb_cache *mb_cache_create(const char *, int);
35void mb_cache_shrink(struct block_device *);
36void mb_cache_destroy(struct mb_cache *);
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40struct mb_cache_entry *mb_cache_entry_alloc(struct mb_cache *, gfp_t);
41int mb_cache_entry_insert(struct mb_cache_entry *, struct block_device *,
42 sector_t, unsigned int);
43void mb_cache_entry_release(struct mb_cache_entry *);
44void mb_cache_entry_free(struct mb_cache_entry *);
45struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *,
46 struct block_device *,
47 sector_t);
48struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache,
49 struct block_device *,
50 unsigned int);
51struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *,
52 struct block_device *,
53 unsigned int);
54
