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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
11void bch2_bio_free_pages_pool(struct bch_fs *, struct bio *);
12void bch2_bio_alloc_pages_pool(struct bch_fs *, struct bio *, size_t);
13
14void 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)
18void bch2_write_op_error(struct bch_write_op *op, u64, const char *, ...);
19
20static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
21{
22 return op->watermark == BCH_WATERMARK_copygc
23 ? op->c->copygc_wq
24 : op->c->btree_update_wq;
25}
26
27int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
28 struct bkey_i *, bool *, s64 *, s64 *);
29int bch2_extent_update(struct btree_trans *, subvol_inum,
30 struct btree_iter *, struct bkey_i *,
31 struct disk_reservation *, u64, s64 *, bool);
32
33static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
34 struct bch_io_opts opts)
35{
36 op->c = c;
37 op->end_io = NULL;
38 op->flags = 0;
39 op->written = 0;
40 op->error = 0;
41 op->csum_type = bch2_data_checksum_type(c, opts);
42 op->compression_opt = opts.compression;
43 op->nr_replicas = 0;
44 op->nr_replicas_required = c->opts.data_replicas_required;
45 op->watermark = BCH_WATERMARK_normal;
46 op->incompressible = 0;
47 op->open_buckets.nr = 0;
48 op->devs_have.nr = 0;
49 op->target = 0;
50 op->opts = opts;
51 op->subvol = 0;
52 op->pos = POS_MAX;
53 op->version = ZERO_VERSION;
54 op->write_point = (struct write_point_specifier) { 0 };
55 op->res = (struct disk_reservation) { 0 };
56 op->new_i_size = U64_MAX;
57 op->i_sectors_delta = 0;
58 op->devs_need_flush = NULL;
59}
60
61CLOSURE_CALLBACK(bch2_write);
62void bch2_write_point_do_index_updates(struct work_struct *);
63
64static inline struct bch_write_bio *wbio_init(struct bio *bio)
65{
66 struct bch_write_bio *wbio = to_wbio(bio);
67
68 memset(&wbio->wbio, 0, sizeof(wbio->wbio));
69 return wbio;
70}
71
72void bch2_write_op_to_text(struct printbuf *, struct bch_write_op *);
73
74void bch2_fs_io_write_exit(struct bch_fs *);
75int bch2_fs_io_write_init(struct bch_fs *);
76
77#endif /* _BCACHEFS_IO_WRITE_H */