1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/* 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 {
struct btree_trans *trans;
struct list_head list;
void *fn;
struct bch_ratelimit *rate;
struct bch_move_stats *stats;
struct write_point_specifier wp;
bool wait_on_copygc;
bool write_error;
/* For waiting on outstanding reads and writes: */
struct closure cl;
struct mutex lock;
struct list_head reads;
struct list_head ios;
/* in flight sectors: */
atomic_t read_sectors;
atomic_t write_sectors;
atomic_t read_ios;
atomic_t write_ios;
wait_queue_head_t wait;
};
#define move_ctxt_wait_event_timeout(_ctxt, _cond, _timeout) \
({ \
int _ret = 0; \
while (true) { \
bool cond_finished = false; \
bch2_moving_ctxt_do_pending_writes(_ctxt); \
\
if (_cond) \
break; \
bch2_trans_unlock_long((_ctxt)->trans); \
_ret = __wait_event_timeout((_ctxt)->wait, \
bch2_moving_ctxt_next_pending_write(_ctxt) || \
(cond_finished = (_cond)), _timeout); \
if (_ret || ( cond_finished)) \
break; \
} \
_ret; \
})
#define move_ctxt_wait_event(_ctxt, _cond) \
do { \
bool cond_finished = false; \
bch2_moving_ctxt_do_pending_writes(_ctxt); \
\
if (_cond) \
break; \
bch2_trans_unlock_long((_ctxt)->trans); \
__wait_event((_ctxt)->wait, \
bch2_moving_ctxt_next_pending_write(_ctxt) || \
(cond_finished = (_cond))); \
if (cond_finished) \
break; \
} while (1)
typedef bool (*move_pred_fn)(struct bch_fs *, void *, enum btree_id, struct bkey_s_c,
struct bch_inode_opts *, struct data_update_opts *);
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 data_update *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 *);
int bch2_scan_old_btree_nodes(struct bch_fs *, struct bch_move_stats *);
int bch2_move_extent(struct moving_context *,
struct move_bucket *,
struct btree_iter *,
struct bkey_s_c,
struct bch_inode_opts,
struct data_update_opts);
int bch2_move_data_btree(struct moving_context *, struct bpos, struct bpos,
move_pred_fn, void *, enum btree_id, unsigned);
int bch2_move_data_phys(struct bch_fs *, unsigned, u64, u64, unsigned,
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 *,
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 */
|
