1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_IO_WRITE_H
3 #define _BCACHEFS_IO_WRITE_H
4
5 #include "checksum.h"
6 #include "io_write_types.h"
7
8 #define to_wbio(_bio) \
9 container_of((_bio), struct bch_write_bio, bio)
10
11 void bch2_bio_free_pages_pool(struct bch_fs *, struct bio *);
12 void bch2_bio_alloc_pages_pool(struct bch_fs *, struct bio *, size_t);
13
14 void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
15 enum bch_data_type, const struct bkey_i *, bool);
16
17 __printf(3, 4)
18 void bch2_write_op_error(struct bch_write_op *op, u64, const char *, ...);
19
20 #define BCH_WRITE_FLAGS() \
21 x(alloc_nowait) \
22 x(cached) \
23 x(data_encoded) \
24 x(pages_stable) \
25 x(pages_owned) \
26 x(only_specified_devs) \
27 x(wrote_data_inline) \
28 x(check_enospc) \
29 x(sync) \
30 x(move) \
31 x(in_worker) \
32 x(submitted) \
33 x(io_error) \
34 x(convert_unwritten)
35
36 enum __bch_write_flags {
37 #define x(f) __BCH_WRITE_##f,
38 BCH_WRITE_FLAGS()
39 #undef x
40 };
41
42 enum bch_write_flags {
43 #define x(f) BCH_WRITE_##f = BIT(__BCH_WRITE_##f),
44 BCH_WRITE_FLAGS()
45 #undef x
46 };
47
index_update_wq(struct bch_write_op * op)48 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
49 {
50 return op->watermark == BCH_WATERMARK_copygc
51 ? op->c->copygc_wq
52 : op->c->btree_update_wq;
53 }
54
55 int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
56 struct bkey_i *, bool *, s64 *, s64 *);
57 int bch2_extent_update(struct btree_trans *, subvol_inum,
58 struct btree_iter *, struct bkey_i *,
59 struct disk_reservation *, u64, s64 *, bool);
60
bch2_write_op_init(struct bch_write_op * op,struct bch_fs * c,struct bch_io_opts opts)61 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
62 struct bch_io_opts opts)
63 {
64 op->c = c;
65 op->end_io = NULL;
66 op->flags = 0;
67 op->written = 0;
68 op->error = 0;
69 op->csum_type = bch2_data_checksum_type(c, opts);
70 op->compression_opt = opts.compression;
71 op->nr_replicas = 0;
72 op->nr_replicas_required = c->opts.data_replicas_required;
73 op->watermark = BCH_WATERMARK_normal;
74 op->incompressible = 0;
75 op->open_buckets.nr = 0;
76 op->devs_have.nr = 0;
77 op->target = 0;
78 op->opts = opts;
79 op->subvol = 0;
80 op->pos = POS_MAX;
81 op->version = ZERO_VERSION;
82 op->write_point = (struct write_point_specifier) { 0 };
83 op->res = (struct disk_reservation) { 0 };
84 op->new_i_size = U64_MAX;
85 op->i_sectors_delta = 0;
86 op->devs_need_flush = NULL;
87 }
88
89 CLOSURE_CALLBACK(bch2_write);
90 void bch2_write_point_do_index_updates(struct work_struct *);
91
wbio_init(struct bio * bio)92 static inline struct bch_write_bio *wbio_init(struct bio *bio)
93 {
94 struct bch_write_bio *wbio = to_wbio(bio);
95
96 memset(&wbio->wbio, 0, sizeof(wbio->wbio));
97 return wbio;
98 }
99
100 void bch2_write_op_to_text(struct printbuf *, struct bch_write_op *);
101
102 void bch2_fs_io_write_exit(struct bch_fs *);
103 int bch2_fs_io_write_init(struct bch_fs *);
104
105 #endif /* _BCACHEFS_IO_WRITE_H */
106