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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2016-02-22 22:42:05 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-02-22 22:42:05 -0500 |
| commit | dc8d5e565f00c9442fa1cbf9acc115475628527c (patch) | |
| tree | 19cee33666fc32278307e03ede65746dc992f71c /include/linux/mbcache.h | |
| parent | 2335d05f3a83f5290ec28c1ed30c1c742a37edc9 (diff) | |
| download | linux-dc8d5e565f00c9442fa1cbf9acc115475628527c.tar.gz linux-dc8d5e565f00c9442fa1cbf9acc115475628527c.tar.bz2 linux-dc8d5e565f00c9442fa1cbf9acc115475628527c.zip | |
mbcache: get rid of _e_hash_list_head
Get rid of field _e_hash_list_head in cache entries and add bit field
e_referenced instead.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/mbcache.h')
| -rw-r--r-- | include/linux/mbcache.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h index a74a1f3082fb..607e6968542e 100644 --- a/include/linux/mbcache.h +++ b/include/linux/mbcache.h @@ -12,18 +12,14 @@ struct mb_cache; struct mb_cache_entry { /* List of entries in cache - protected by cache->c_list_lock */ struct list_head e_list; - /* Hash table list - protected by bitlock in e_hash_list_head */ + /* Hash table list - protected by hash chain bitlock */ struct hlist_bl_node e_hash_list; atomic_t e_refcnt; /* Key in hash - stable during lifetime of the entry */ u32 e_key; + u32 e_referenced:1; /* Block number of hashed block - stable during lifetime of the entry */ sector_t e_block; - /* - * Head of hash list (for list bit lock) - stable. Combined with - * referenced bit of entry - */ - unsigned long _e_hash_list_head; }; struct mb_cache *mb_cache_create(int bucket_bits); |