diff options
Diffstat (limited to 'drivers/md/bcache/bset.h')
-rw-r--r-- | drivers/md/bcache/bset.h | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h index 1d3c24f9fa0e..ba02f055bc64 100644 --- a/drivers/md/bcache/bset.h +++ b/drivers/md/bcache/bset.h @@ -142,6 +142,8 @@ * first key in that range of bytes again. */ +struct cache_set; + /* Btree key comparison/iteration */ #define MAX_BSETS 4U @@ -282,25 +284,6 @@ bool bch_extent_ptr_invalid(struct cache_set *, const struct bkey *); bool bch_ptr_bad(struct btree *, const struct bkey *); -static inline uint8_t gen_after(uint8_t a, uint8_t b) -{ - uint8_t r = a - b; - return r > 128U ? 0 : r; -} - -static inline uint8_t ptr_stale(struct cache_set *c, const struct bkey *k, - unsigned i) -{ - return gen_after(PTR_BUCKET(c, k, i)->gen, PTR_GEN(k, i)); -} - -static inline bool ptr_available(struct cache_set *c, const struct bkey *k, - unsigned i) -{ - return (PTR_DEV(k, i) < MAX_CACHES_PER_SET) && PTR_CACHE(c, k, i); -} - - typedef bool (*ptr_filter_fn)(struct btree *, const struct bkey *); struct bkey *bch_btree_iter_next(struct btree_iter *); |