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| author | Tahsin Erdogan <tahsin@google.com> | 2017-06-22 10:29:53 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-06-22 10:29:53 -0400 |
| commit | c07dfcb45877fbc6798fa042bab3c4b85378efd4 (patch) | |
| tree | a626ee2c0841dd7370097b8a1e874941f34de4eb /include/linux/mbcache.h | |
| parent | b6d9029df083c0a9ce1d4eda1480105e635e0d61 (diff) | |
| download | blackbird-obmc-linux-c07dfcb45877fbc6798fa042bab3c4b85378efd4.tar.gz blackbird-obmc-linux-c07dfcb45877fbc6798fa042bab3c4b85378efd4.zip | |
mbcache: make mbcache naming more generic
Make names more generic so that mbcache usage is not limited to
block sharing. In a subsequent patch in the series
("ext4: xattr inode deduplication"), we start using the mbcache code
for sharing xattr inodes. With that patch, old mb_cache_entry.e_block
field could be holding either a block number or an inode number.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/mbcache.h')
| -rw-r--r-- | include/linux/mbcache.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h index 86c9a8b480c5..e1bc73414983 100644 --- a/include/linux/mbcache.h +++ b/include/linux/mbcache.h @@ -19,15 +19,15 @@ struct mb_cache_entry { u32 e_key; u32 e_referenced:1; u32 e_reusable:1; - /* Block number of hashed block - stable during lifetime of the entry */ - sector_t e_block; + /* User provided value - stable during lifetime of the entry */ + u64 e_value; }; struct mb_cache *mb_cache_create(int bucket_bits); void mb_cache_destroy(struct mb_cache *cache); int mb_cache_entry_create(struct mb_cache *cache, gfp_t mask, u32 key, - sector_t block, bool reusable); + u64 value, bool reusable); void __mb_cache_entry_free(struct mb_cache_entry *entry); static inline int mb_cache_entry_put(struct mb_cache *cache, struct mb_cache_entry *entry) @@ -38,10 +38,9 @@ static inline int mb_cache_entry_put(struct mb_cache *cache, return 1; } -void mb_cache_entry_delete_block(struct mb_cache *cache, u32 key, - sector_t block); +void mb_cache_entry_delete(struct mb_cache *cache, u32 key, u64 value); struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *cache, u32 key, - sector_t block); + u64 value); struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache, u32 key); struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache *cache, |
