1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_BKEY_METHODS_H
3 #define _BCACHEFS_BKEY_METHODS_H
13 extern const char * const bch2_bkey_types[];
16 /* Returns reason for being invalid if invalid, else NULL: */
17 const char * (*key_invalid)(const struct bch_fs *,
19 void (*val_to_text)(struct printbuf *, struct bch_fs *,
21 void (*swab)(struct bkey_s);
22 bool (*key_normalize)(struct bch_fs *, struct bkey_s);
23 bool (*key_merge)(struct bch_fs *, struct bkey_s, struct bkey_s_c);
24 int (*trans_trigger)(struct btree_trans *, struct bkey_s_c,
25 struct bkey_i *, unsigned);
26 int (*atomic_trigger)(struct btree_trans *, struct bkey_s_c,
27 struct bkey_s_c, unsigned);
28 void (*compat)(enum btree_id id, unsigned version,
29 unsigned big_endian, int write,
33 extern const struct bkey_ops bch2_bkey_ops[];
35 const char *bch2_bkey_val_invalid(struct bch_fs *, struct bkey_s_c);
36 const char *__bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
37 enum btree_node_type);
38 const char *bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
39 enum btree_node_type);
40 const char *bch2_bkey_in_btree_node(struct btree *, struct bkey_s_c);
42 void bch2_bpos_to_text(struct printbuf *, struct bpos);
43 void bch2_bkey_to_text(struct printbuf *, const struct bkey *);
44 void bch2_val_to_text(struct printbuf *, struct bch_fs *,
46 void bch2_bkey_val_to_text(struct printbuf *, struct bch_fs *,
49 void bch2_bkey_swab_val(struct bkey_s);
51 bool bch2_bkey_normalize(struct bch_fs *, struct bkey_s);
53 static inline bool bch2_bkey_maybe_mergable(const struct bkey *l, const struct bkey *r)
55 return l->type == r->type &&
56 !bversion_cmp(l->version, r->version) &&
57 !bpos_cmp(l->p, bkey_start_pos(r)) &&
58 (u64) l->size + r->size <= KEY_SIZE_MAX &&
59 bch2_bkey_ops[l->type].key_merge &&
60 !bch2_key_merging_disabled;
63 bool bch2_bkey_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
65 static inline int bch2_mark_key(struct btree_trans *trans,
70 const struct bkey_ops *ops = &bch2_bkey_ops[old.k->type ?: new.k->type];
72 return ops->atomic_trigger
73 ? ops->atomic_trigger(trans, old, new, flags)
77 static inline int bch2_trans_mark_key(struct btree_trans *trans, struct bkey_s_c old,
78 struct bkey_i *new, unsigned flags)
80 const struct bkey_ops *ops = &bch2_bkey_ops[old.k->type ?: new->k.type];
82 return ops->trans_trigger
83 ? ops->trans_trigger(trans, old, new, flags)
87 void bch2_bkey_renumber(enum btree_node_type, struct bkey_packed *, int);
89 void __bch2_bkey_compat(unsigned, enum btree_id, unsigned, unsigned,
90 int, struct bkey_format *, struct bkey_packed *);
92 static inline void bch2_bkey_compat(unsigned level, enum btree_id btree_id,
93 unsigned version, unsigned big_endian,
95 struct bkey_format *f,
96 struct bkey_packed *k)
98 if (version < bcachefs_metadata_version_current ||
99 big_endian != CPU_BIG_ENDIAN)
100 __bch2_bkey_compat(level, btree_id, version,
101 big_endian, write, f, k);
105 #endif /* _BCACHEFS_BKEY_METHODS_H */