xref: /linux/fs/bcachefs/bbpos.h (revision ab52c59103002b49f2455371e4b9c56ba3ef1781)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_BBPOS_H
3 #define _BCACHEFS_BBPOS_H
4 
5 #include "bbpos_types.h"
6 #include "bkey_methods.h"
7 #include "btree_cache.h"
8 
9 static inline int bbpos_cmp(struct bbpos l, struct bbpos r)
10 {
11 	return cmp_int(l.btree, r.btree) ?: bpos_cmp(l.pos, r.pos);
12 }
13 
14 static inline struct bbpos bbpos_successor(struct bbpos pos)
15 {
16 	if (bpos_cmp(pos.pos, SPOS_MAX)) {
17 		pos.pos = bpos_successor(pos.pos);
18 		return pos;
19 	}
20 
21 	if (pos.btree != BTREE_ID_NR) {
22 		pos.btree++;
23 		pos.pos = POS_MIN;
24 		return pos;
25 	}
26 
27 	BUG();
28 }
29 
30 static inline void bch2_bbpos_to_text(struct printbuf *out, struct bbpos pos)
31 {
32 	prt_str(out, bch2_btree_id_str(pos.btree));
33 	prt_char(out, ':');
34 	bch2_bpos_to_text(out, pos.pos);
35 }
36 
37 #endif /* _BCACHEFS_BBPOS_H */
38