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-rw-r--r--fs/bcachefs/keylist.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/fs/bcachefs/keylist.h b/fs/bcachefs/keylist.h
new file mode 100644
index 0000000000..fe759c7031
--- /dev/null
+++ b/fs/bcachefs/keylist.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_KEYLIST_H
+#define _BCACHEFS_KEYLIST_H
+
+#include "keylist_types.h"
+
+int bch2_keylist_realloc(struct keylist *, u64 *, size_t, size_t);
+void bch2_keylist_pop_front(struct keylist *);
+
+static inline void bch2_keylist_init(struct keylist *l, u64 *inline_keys)
+{
+ 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);
+}
+
+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 bch2_keylist_u64s(struct keylist *l)
+{
+ return l->top_p - l->keys_p;
+}
+
+static inline size_t bch2_keylist_bytes(struct keylist *l)
+{
+ return bch2_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))
+
+static inline u64 keylist_sectors(struct keylist *keys)
+{
+ struct bkey_i *k;
+ u64 ret = 0;
+
+ for_each_keylist_key(keys, k)
+ ret += k->k.size;
+
+ return ret;
+}
+
+#ifdef CONFIG_BCACHEFS_DEBUG
+void bch2_verify_keylist_sorted(struct keylist *);
+#else
+static inline void bch2_verify_keylist_sorted(struct keylist *l) {}
+#endif
+
+#endif /* _BCACHEFS_KEYLIST_H */