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-rw-r--r--fs/bcachefs/bbpos.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/fs/bcachefs/bbpos.h b/fs/bcachefs/bbpos.h
new file mode 100644
index 0000000000..be2edced52
--- /dev/null
+++ b/fs/bcachefs/bbpos.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_BBPOS_H
+#define _BCACHEFS_BBPOS_H
+
+#include "bbpos_types.h"
+#include "bkey_methods.h"
+#include "btree_cache.h"
+
+static inline int bbpos_cmp(struct bbpos l, struct bbpos r)
+{
+ return cmp_int(l.btree, r.btree) ?: bpos_cmp(l.pos, r.pos);
+}
+
+static inline struct bbpos bbpos_successor(struct bbpos pos)
+{
+ if (bpos_cmp(pos.pos, SPOS_MAX)) {
+ pos.pos = bpos_successor(pos.pos);
+ return pos;
+ }
+
+ if (pos.btree != BTREE_ID_NR) {
+ pos.btree++;
+ pos.pos = POS_MIN;
+ return pos;
+ }
+
+ BUG();
+}
+
+static inline void bch2_bbpos_to_text(struct printbuf *out, struct bbpos pos)
+{
+ prt_str(out, bch2_btree_id_str(pos.btree));
+ prt_char(out, ':');
+ bch2_bpos_to_text(out, pos.pos);
+}
+
+#endif /* _BCACHEFS_BBPOS_H */