diff options
Diffstat (limited to 'libbcachefs/keylist.h')
-rw-r--r-- | libbcachefs/keylist.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libbcachefs/keylist.h b/libbcachefs/keylist.h new file mode 100644 index 00000000..66628058 --- /dev/null +++ b/libbcachefs/keylist.h @@ -0,0 +1,62 @@ +#ifndef _BCACHE_KEYLIST_H +#define _BCACHE_KEYLIST_H + +#include "keylist_types.h" + +int bch2_keylist_realloc(struct keylist *, u64 *, size_t, size_t); +void bch2_keylist_add_in_order(struct keylist *, struct bkey_i *); +void bch2_keylist_pop_front(struct keylist *); + +static inline void bch2_keylist_init(struct keylist *l, u64 *inline_keys, + size_t nr_inline_u64s) +{ + l->top_p = l->keys_p = inline_keys; +} + +static inline void bch2_keylist_free(struct keylist *l, u64 *inline_keys) +{ + if (l->keys_p != inline_keys) + kfree(l->keys_p); + memset(l, 0, sizeof(*l)); +} + +static inline void bch2_keylist_push(struct keylist *l) +{ + l->top = bkey_next(l->top); +} + +static inline void bch2_keylist_add(struct keylist *l, const struct bkey_i *k) +{ + bkey_copy(l->top, k); + bch2_keylist_push(l); +} + +static inline bool bch2_keylist_empty(struct keylist *l) +{ + return l->top == l->keys; +} + +static inline size_t bch_keylist_u64s(struct keylist *l) +{ + return l->top_p - l->keys_p; +} + +static inline size_t bch2_keylist_bytes(struct keylist *l) +{ + return bch_keylist_u64s(l) * sizeof(u64); +} + +static inline struct bkey_i *bch2_keylist_front(struct keylist *l) +{ + return l->keys; +} + +#define for_each_keylist_key(_keylist, _k) \ + for (_k = (_keylist)->keys; \ + _k != (_keylist)->top; \ + _k = bkey_next(_k)) + +#define keylist_single(k) \ + ((struct keylist) { .keys = k, .top = bkey_next(k) }) + +#endif /* _BCACHE_KEYLIST_H */ |