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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BKEY_METHODS_H
#define _BCACHEFS_BKEY_METHODS_H
#include "bkey.h"
struct bch_fs;
struct btree;
struct bkey;
enum btree_node_type;
extern const char * const bch2_bkey_types[];
enum merge_result {
BCH_MERGE_NOMERGE,
/*
* The keys were mergeable, but would have overflowed size - so instead
* l was changed to the maximum size, and both keys were modified:
*/
BCH_MERGE_PARTIAL,
BCH_MERGE_MERGE,
};
struct bkey_ops {
/* Returns reason for being invalid if invalid, else NULL: */
const char * (*key_invalid)(const struct bch_fs *,
struct bkey_s_c);
void (*key_debugcheck)(struct bch_fs *, struct bkey_s_c);
void (*val_to_text)(struct printbuf *, struct bch_fs *,
struct bkey_s_c);
void (*swab)(struct bkey_s);
bool (*key_normalize)(struct bch_fs *, struct bkey_s);
enum merge_result (*key_merge)(struct bch_fs *,
struct bkey_s, struct bkey_s);
void (*compat)(enum btree_id id, unsigned version,
unsigned big_endian, int write,
struct bkey_s);
};
const char *bch2_bkey_val_invalid(struct bch_fs *, struct bkey_s_c);
const char *__bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
enum btree_node_type);
const char *bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c,
enum btree_node_type);
const char *bch2_bkey_in_btree_node(struct btree *, struct bkey_s_c);
void bch2_bkey_debugcheck(struct bch_fs *, struct btree *, struct bkey_s_c);
void bch2_bpos_to_text(struct printbuf *, struct bpos);
void bch2_bkey_to_text(struct printbuf *, const struct bkey *);
void bch2_val_to_text(struct printbuf *, struct bch_fs *,
struct bkey_s_c);
void bch2_bkey_val_to_text(struct printbuf *, struct bch_fs *,
struct bkey_s_c);
void bch2_bkey_swab_val(struct bkey_s);
bool bch2_bkey_normalize(struct bch_fs *, struct bkey_s);
enum merge_result bch2_bkey_merge(struct bch_fs *,
struct bkey_s, struct bkey_s);
void bch2_bkey_renumber(enum btree_node_type, struct bkey_packed *, int);
void __bch2_bkey_compat(unsigned, enum btree_id, unsigned, unsigned,
int, struct bkey_format *, struct bkey_packed *);
static inline void bch2_bkey_compat(unsigned level, enum btree_id btree_id,
unsigned version, unsigned big_endian,
int write,
struct bkey_format *f,
struct bkey_packed *k)
{
if (version < bcachefs_metadata_version_current ||
big_endian != CPU_BIG_ENDIAN)
__bch2_bkey_compat(level, btree_id, version,
big_endian, write, f, k);
}
#endif /* _BCACHEFS_BKEY_METHODS_H */
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