linux/fs/bcachefs/btree_io.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BTREE_IO_H
#define _BCACHEFS_BTREE_IO_H

#include "bkey_methods.h"
#include "bset.h"
#include "btree_locking.h"
#include "checksum.h"
#include "extents.h"
#include "io_write_types.h"

struct bch_fs;
struct btree_write;
struct btree;
struct btree_iter;
struct btree_node_read_all;

static inline void set_btree_node_dirty_acct(struct bch_fs *c, struct btree *b)
{ … }

static inline void clear_btree_node_dirty_acct(struct bch_fs *c, struct btree *b)
{ … }

static inline unsigned btree_ptr_sectors_written(struct bkey_s_c k)
{ … }

struct btree_read_bio { … };

struct btree_write_bio { … };

void bch2_btree_node_io_unlock(struct btree *);
void bch2_btree_node_io_lock(struct btree *);
void __bch2_btree_node_wait_on_read(struct btree *);
void __bch2_btree_node_wait_on_write(struct btree *);
void bch2_btree_node_wait_on_read(struct btree *);
void bch2_btree_node_wait_on_write(struct btree *);

enum compact_mode { … };

bool bch2_compact_whiteouts(struct bch_fs *, struct btree *,
			    enum compact_mode);

static inline bool should_compact_bset_lazy(struct btree *b,
					    struct bset_tree *t)
{ … }

static inline bool bch2_maybe_compact_whiteouts(struct bch_fs *c, struct btree *b)
{ … }

static inline struct nonce btree_nonce(struct bset *i, unsigned offset)
{ … }

static inline int bset_encrypt(struct bch_fs *c, struct bset *i, unsigned offset)
{ … }

void bch2_btree_sort_into(struct bch_fs *, struct btree *, struct btree *);

void bch2_btree_node_drop_keys_outside_node(struct btree *);

void bch2_btree_build_aux_trees(struct btree *);
void bch2_btree_init_next(struct btree_trans *, struct btree *);

int bch2_btree_node_read_done(struct bch_fs *, struct bch_dev *,
			      struct btree *, bool, bool *);
void bch2_btree_node_read(struct btree_trans *, struct btree *, bool);
int bch2_btree_root_read(struct bch_fs *, enum btree_id,
			 const struct bkey_i *, unsigned);

bool bch2_btree_post_write_cleanup(struct bch_fs *, struct btree *);

enum btree_write_flags { … };
#define BTREE_WRITE_ONLY_IF_NEED …
#define BTREE_WRITE_ALREADY_STARTED …

void __bch2_btree_node_write(struct bch_fs *, struct btree *, unsigned);
void bch2_btree_node_write(struct bch_fs *, struct btree *,
			   enum six_lock_type, unsigned);

static inline void btree_node_write_if_need(struct bch_fs *c, struct btree *b,
					    enum six_lock_type lock_held)
{ … }

bool bch2_btree_flush_all_reads(struct bch_fs *);
bool bch2_btree_flush_all_writes(struct bch_fs *);

static inline void compat_bformat(unsigned level, enum btree_id btree_id,
				  unsigned version, unsigned big_endian,
				  int write, struct bkey_format *f)
{ … }

static inline void compat_bpos(unsigned level, enum btree_id btree_id,
			       unsigned version, unsigned big_endian,
			       int write, struct bpos *p)
{ … }

static inline void compat_btree_node(unsigned level, enum btree_id btree_id,
				     unsigned version, unsigned big_endian,
				     int write,
				     struct btree_node *bn)
{ … }

void bch2_btree_write_stats_to_text(struct printbuf *, struct bch_fs *);

#endif /* _BCACHEFS_BTREE_IO_H */