linux/fs/bcachefs/io_read.h

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

#include "bkey_buf.h"

struct bch_read_bio { … };

#define to_rbio(_bio) …

struct bch_devs_mask;
struct cache_promote_op;
struct extent_ptr_decoded;

int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
				struct bkey_buf *);

static inline int bch2_read_indirect_extent(struct btree_trans *trans,
					    enum btree_id *data_btree,
					    unsigned *offset_into_extent,
					    struct bkey_buf *k)
{ … }

enum bch_read_flags { … };

int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
		       struct bvec_iter, struct bpos, enum btree_id,
		       struct bkey_s_c, unsigned,
		       struct bch_io_failures *, unsigned);

static inline void bch2_read_extent(struct btree_trans *trans,
			struct bch_read_bio *rbio, struct bpos read_pos,
			enum btree_id data_btree, struct bkey_s_c k,
			unsigned offset_into_extent, unsigned flags)
{ … }

void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
		 subvol_inum, struct bch_io_failures *, unsigned flags);

static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
			     subvol_inum inum)
{ … }

static inline struct bch_read_bio *rbio_init(struct bio *bio,
					     struct bch_io_opts opts)
{ … }

void bch2_fs_io_read_exit(struct bch_fs *);
int bch2_fs_io_read_init(struct bch_fs *);

#endif /* _BCACHEFS_IO_READ_H */