linux/fs/bcachefs/move.h

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

#include "bbpos.h"
#include "bcachefs_ioctl.h"
#include "btree_iter.h"
#include "buckets.h"
#include "data_update.h"
#include "move_types.h"

struct bch_read_bio;

struct moving_context { … };

#define move_ctxt_wait_event_timeout(_ctxt, _cond, _timeout) …

#define move_ctxt_wait_event(_ctxt, _cond) …

move_pred_fn;

extern const char * const bch2_data_ops_strs[];

void bch2_moving_ctxt_exit(struct moving_context *);
void bch2_moving_ctxt_init(struct moving_context *, struct bch_fs *,
			   struct bch_ratelimit *, struct bch_move_stats *,
			   struct write_point_specifier, bool);
struct moving_io *bch2_moving_ctxt_next_pending_write(struct moving_context *);
void bch2_moving_ctxt_do_pending_writes(struct moving_context *);
void bch2_moving_ctxt_flush_all(struct moving_context *);
void bch2_move_ctxt_wait_for_io(struct moving_context *);
int bch2_move_ratelimit(struct moving_context *);

/* Inodes in different snapshots may have different IO options: */
struct snapshot_io_opts_entry { … };

struct per_snapshot_io_opts { … };

static inline void per_snapshot_io_opts_init(struct per_snapshot_io_opts *io_opts, struct bch_fs *c)
{ … }

static inline void per_snapshot_io_opts_exit(struct per_snapshot_io_opts *io_opts)
{ … }

struct bch_io_opts *bch2_move_get_io_opts(struct btree_trans *,
				struct per_snapshot_io_opts *, struct bkey_s_c);
int bch2_move_get_io_opts_one(struct btree_trans *, struct bch_io_opts *, struct bkey_s_c);

int bch2_scan_old_btree_nodes(struct bch_fs *, struct bch_move_stats *);

int bch2_move_extent(struct moving_context *,
		     struct move_bucket_in_flight *,
		     struct btree_iter *,
		     struct bkey_s_c,
		     struct bch_io_opts,
		     struct data_update_opts);

int __bch2_move_data(struct moving_context *,
		     struct bbpos,
		     struct bbpos,
		     move_pred_fn, void *);
int bch2_move_data(struct bch_fs *,
		   struct bbpos start,
		   struct bbpos end,
		   struct bch_ratelimit *,
		   struct bch_move_stats *,
		   struct write_point_specifier,
		   bool,
		   move_pred_fn, void *);

int bch2_evacuate_bucket(struct moving_context *,
			   struct move_bucket_in_flight *,
			   struct bpos, int,
			   struct data_update_opts);
int bch2_data_job(struct bch_fs *,
		  struct bch_move_stats *,
		  struct bch_ioctl_data);

void bch2_move_stats_to_text(struct printbuf *, struct bch_move_stats *);
void bch2_move_stats_exit(struct bch_move_stats *, struct bch_fs *);
void bch2_move_stats_init(struct bch_move_stats *, const char *);

void bch2_fs_moving_ctxts_to_text(struct printbuf *, struct bch_fs *);

void bch2_fs_move_init(struct bch_fs *);

#endif /* _BCACHEFS_MOVE_H */