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Update bcachefs sources to 8d3fc97ca3 bcachefs: Fixes for building in userspace
[bcachefs-tools-debian] / libbcachefs / move.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_MOVE_H
3 #define _BCACHEFS_MOVE_H
4
5 #include "btree_iter.h"
6 #include "buckets.h"
7 #include "data_update.h"
8 #include "move_types.h"
9
10 struct bch_read_bio;
11
12 struct moving_context {
13         struct bch_fs           *c;
14         struct bch_ratelimit    *rate;
15         struct bch_move_stats   *stats;
16         struct write_point_specifier wp;
17         bool                    wait_on_copygc;
18         bool                    write_error;
19
20         /* For waiting on outstanding reads and writes: */
21         struct closure          cl;
22         struct list_head        reads;
23
24         /* in flight sectors: */
25         atomic_t                read_sectors;
26         atomic_t                write_sectors;
27
28         wait_queue_head_t       wait;
29 };
30
31 typedef bool (*move_pred_fn)(struct bch_fs *, void *, struct bkey_s_c,
32                              struct bch_io_opts *, struct data_update_opts *);
33
34 void bch2_moving_ctxt_exit(struct moving_context *);
35 void bch2_moving_ctxt_init(struct moving_context *, struct bch_fs *,
36                            struct bch_ratelimit *, struct bch_move_stats *,
37                            struct write_point_specifier, bool);
38
39 int bch2_scan_old_btree_nodes(struct bch_fs *, struct bch_move_stats *);
40
41 int bch2_move_data(struct bch_fs *,
42                    enum btree_id, struct bpos,
43                    enum btree_id, struct bpos,
44                    struct bch_ratelimit *,
45                    struct bch_move_stats *,
46                    struct write_point_specifier,
47                    bool,
48                    move_pred_fn, void *);
49
50 int __bch2_evacuate_bucket(struct moving_context *,
51                            struct bpos, int,
52                            struct data_update_opts);
53 int bch2_evacuate_bucket(struct bch_fs *, struct bpos, int,
54                          struct data_update_opts,
55                          struct bch_ratelimit *,
56                          struct bch_move_stats *,
57                          struct write_point_specifier,
58                          bool);
59 int bch2_data_job(struct bch_fs *,
60                   struct bch_move_stats *,
61                   struct bch_ioctl_data);
62
63 void bch2_move_stats_init(struct bch_move_stats *stats, char *name);
64
65
66 #endif /* _BCACHEFS_MOVE_H */