mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
|
|
File: linux/mbcache.h
|
|
|
|
(C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
|
|
*/
|
|
|
|
/* Hardwire the number of additional indexes */
|
|
#define MB_CACHE_INDEXES_COUNT 1
|
|
|
|
struct mb_cache_entry {
|
|
struct list_head e_lru_list;
|
|
struct mb_cache *e_cache;
|
|
unsigned short e_used;
|
|
unsigned short e_queued;
|
|
struct block_device *e_bdev;
|
|
sector_t e_block;
|
|
struct list_head e_block_list;
|
|
struct {
|
|
struct list_head o_list;
|
|
unsigned int o_key;
|
|
} e_indexes[0];
|
|
};
|
|
|
|
struct mb_cache_op {
|
|
int (*free)(struct mb_cache_entry *, int);
|
|
};
|
|
|
|
/* Functions on caches */
|
|
|
|
struct mb_cache * mb_cache_create(const char *, struct mb_cache_op *, size_t,
|
|
int, int);
|
|
void mb_cache_shrink(struct mb_cache *, struct block_device *);
|
|
void mb_cache_destroy(struct mb_cache *);
|
|
|
|
/* Functions on cache entries */
|
|
|
|
struct mb_cache_entry *mb_cache_entry_alloc(struct mb_cache *);
|
|
int mb_cache_entry_insert(struct mb_cache_entry *, struct block_device *,
|
|
sector_t, unsigned int[]);
|
|
void mb_cache_entry_release(struct mb_cache_entry *);
|
|
void mb_cache_entry_free(struct mb_cache_entry *);
|
|
struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *,
|
|
struct block_device *,
|
|
sector_t);
|
|
#if !defined(MB_CACHE_INDEXES_COUNT) || (MB_CACHE_INDEXES_COUNT > 0)
|
|
struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache, int,
|
|
struct block_device *,
|
|
unsigned int);
|
|
struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *, int,
|
|
struct block_device *,
|
|
unsigned int);
|
|
#endif
|