fs/bcachefs/bbpos.h

   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 */