linux/fs/bcachefs/bkey_methods.h

/* 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 btree_trans;
struct bkey;
enum btree_node_type;

extern const char * const bch2_bkey_types[];
extern const struct bkey_ops bch2_bkey_null_ops;

/*
 * key_invalid: checks validity of @k, returns 0 if good or -EINVAL if bad. If
 * invalid, entire key will be deleted.
 *
 * When invalid, error string is returned via @err. @rw indicates whether key is
 * being read or written; more aggressive checks can be enabled when rw == WRITE.
 */
struct bkey_ops { … };

extern const struct bkey_ops bch2_bkey_ops[];

static inline const struct bkey_ops *bch2_bkey_type_ops(enum bch_bkey_type type)
{ … }

int bch2_bkey_val_invalid(struct bch_fs *, struct bkey_s_c,
			  enum bch_validate_flags, struct printbuf *);
int __bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c, enum btree_node_type,
			enum bch_validate_flags, struct printbuf *);
int bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c, enum btree_node_type,
		      enum bch_validate_flags, struct printbuf *);
int bch2_bkey_in_btree_node(struct bch_fs *, struct btree *,
			    struct bkey_s_c, struct printbuf *);

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);

static inline bool bch2_bkey_maybe_mergable(const struct bkey *l, const struct bkey *r)
{ … }

bool bch2_bkey_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);

static inline int bch2_key_trigger(struct btree_trans *trans,
		enum btree_id btree, unsigned level,
		struct bkey_s_c old, struct bkey_s new,
		enum btree_iter_update_trigger_flags flags)
{ … }

static inline int bch2_key_trigger_old(struct btree_trans *trans,
			enum btree_id btree_id, unsigned level,
			struct bkey_s_c old,
			enum btree_iter_update_trigger_flags flags)
{ … }

static inline int bch2_key_trigger_new(struct btree_trans *trans,
			enum btree_id btree_id, unsigned level,
			struct bkey_s new,
			enum btree_iter_update_trigger_flags flags)
{ … }

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)
{ … }

#endif /* _BCACHEFS_BKEY_METHODS_H */