From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 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! --- include/linux/mbcache.h | 52 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 include/linux/mbcache.h (limited to 'include/linux/mbcache.h') diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h new file mode 100644 index 0000000..8e5a1041 --- /dev/null +++ b/include/linux/mbcache.h @@ -0,0 +1,52 @@ +/* + File: linux/mbcache.h + + (C) 2001 by Andreas Gruenbacher, +*/ + +/* 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 -- cgit v1.1