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https://github.com/koverstreet/bcachefs-tools.git
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79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_BKEY_METHODS_H
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#define _BCACHEFS_BKEY_METHODS_H
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#include "bkey.h"
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struct bch_fs;
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struct btree;
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struct bkey;
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enum btree_node_type;
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extern const char * const bch2_bkey_types[];
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struct bkey_ops {
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/* Returns reason for being invalid if invalid, else NULL: */
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const char * (*key_invalid)(const struct bch_fs *,
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struct bkey_s_c);
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void (*val_to_text)(struct printbuf *, struct bch_fs *,
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struct bkey_s_c);
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void (*swab)(struct bkey_s);
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bool (*key_normalize)(struct bch_fs *, struct bkey_s);
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bool (*key_merge)(struct bch_fs *, struct bkey_s, struct bkey_s_c);
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void (*compat)(enum btree_id id, unsigned version,
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unsigned big_endian, int write,
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struct bkey_s);
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};
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extern const struct bkey_ops bch2_bkey_ops[];
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const char *bch2_bkey_val_invalid(struct bch_fs *, struct bkey_s_c);
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const char *__bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
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enum btree_node_type);
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const char *bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
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enum btree_node_type);
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const char *bch2_bkey_in_btree_node(struct btree *, struct bkey_s_c);
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void bch2_bpos_to_text(struct printbuf *, struct bpos);
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void bch2_bkey_to_text(struct printbuf *, const struct bkey *);
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void bch2_val_to_text(struct printbuf *, struct bch_fs *,
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struct bkey_s_c);
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void bch2_bkey_val_to_text(struct printbuf *, struct bch_fs *,
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struct bkey_s_c);
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void bch2_bkey_swab_val(struct bkey_s);
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bool bch2_bkey_normalize(struct bch_fs *, struct bkey_s);
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static inline bool bch2_bkey_maybe_mergable(const struct bkey *l, const struct bkey *r)
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{
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return l->type == r->type &&
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!bversion_cmp(l->version, r->version) &&
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!bpos_cmp(l->p, bkey_start_pos(r)) &&
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(u64) l->size + r->size <= KEY_SIZE_MAX &&
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bch2_bkey_ops[l->type].key_merge &&
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!bch2_key_merging_disabled;
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}
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bool bch2_bkey_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
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void bch2_bkey_renumber(enum btree_node_type, struct bkey_packed *, int);
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void __bch2_bkey_compat(unsigned, enum btree_id, unsigned, unsigned,
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int, struct bkey_format *, struct bkey_packed *);
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static inline void bch2_bkey_compat(unsigned level, enum btree_id btree_id,
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unsigned version, unsigned big_endian,
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int write,
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struct bkey_format *f,
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struct bkey_packed *k)
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{
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if (version < bcachefs_metadata_version_current ||
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big_endian != CPU_BIG_ENDIAN)
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__bch2_bkey_compat(level, btree_id, version,
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big_endian, write, f, k);
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}
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#endif /* _BCACHEFS_BKEY_METHODS_H */
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