1 /* SPDX-License-Identifier: GPL-2.0 */
9 #define to_wbio(_bio) \
10 container_of((_bio), struct bch_write_bio, bio)
12 #define to_rbio(_bio) \
13 container_of((_bio), struct bch_read_bio, bio)
15 void bch2_bio_free_pages_pool(struct bch_fs *, struct bio *);
16 void bch2_bio_alloc_pages_pool(struct bch_fs *, struct bio *, size_t);
18 void bch2_latency_acct(struct bch_dev *, u64, int);
20 void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
21 enum bch_data_type, const struct bkey_i *);
23 #define BLK_STS_REMOVED ((__force blk_status_t)128)
25 const char *bch2_blk_status_to_str(blk_status_t);
27 enum bch_write_flags {
28 BCH_WRITE_ALLOC_NOWAIT = (1 << 0),
29 BCH_WRITE_CACHED = (1 << 1),
30 BCH_WRITE_FLUSH = (1 << 2),
31 BCH_WRITE_DATA_ENCODED = (1 << 3),
32 BCH_WRITE_PAGES_STABLE = (1 << 4),
33 BCH_WRITE_PAGES_OWNED = (1 << 5),
34 BCH_WRITE_ONLY_SPECIFIED_DEVS = (1 << 6),
35 BCH_WRITE_WROTE_DATA_INLINE = (1 << 7),
36 BCH_WRITE_FROM_INTERNAL = (1 << 8),
37 BCH_WRITE_CHECK_ENOSPC = (1 << 9),
40 BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 10),
41 BCH_WRITE_SKIP_CLOSURE_PUT = (1 << 11),
42 BCH_WRITE_DONE = (1 << 12),
43 BCH_WRITE_IO_ERROR = (1 << 13),
46 static inline u64 *op_journal_seq(struct bch_write_op *op)
48 return (op->flags & BCH_WRITE_JOURNAL_SEQ_PTR)
49 ? op->journal_seq_p : &op->journal_seq;
52 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
54 return op->alloc_reserve == RESERVE_movinggc
56 : op->c->btree_update_wq;
59 int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
60 struct bkey_i *, bool *, s64 *, s64 *);
61 int bch2_extent_update(struct btree_trans *, subvol_inum,
62 struct btree_iter *, struct bkey_i *,
63 struct disk_reservation *, u64 *, u64, s64 *, bool);
65 int bch2_fpunch_at(struct btree_trans *, struct btree_iter *,
66 subvol_inum, u64, s64 *);
67 int bch2_fpunch(struct bch_fs *c, subvol_inum, u64, u64, s64 *);
69 int bch2_write_index_default(struct bch_write_op *);
71 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
72 struct bch_io_opts opts)
79 op->csum_type = bch2_data_checksum_type(c, opts.data_checksum);
80 op->compression_type = bch2_compression_opt_to_type[opts.compression];
82 op->nr_replicas_required = c->opts.data_replicas_required;
83 op->alloc_reserve = RESERVE_none;
84 op->incompressible = 0;
85 op->open_buckets.nr = 0;
91 op->version = ZERO_VERSION;
92 op->write_point = (struct write_point_specifier) { 0 };
93 op->res = (struct disk_reservation) { 0 };
95 op->new_i_size = U64_MAX;
96 op->i_sectors_delta = 0;
97 op->index_update_fn = bch2_write_index_default;
100 void bch2_write(struct closure *);
102 static inline struct bch_write_bio *wbio_init(struct bio *bio)
104 struct bch_write_bio *wbio = to_wbio(bio);
106 memset(wbio, 0, offsetof(struct bch_write_bio, bio));
110 struct bch_devs_mask;
111 struct cache_promote_op;
112 struct extent_ptr_decoded;
114 int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
117 static inline int bch2_read_indirect_extent(struct btree_trans *trans,
118 enum btree_id *data_btree,
119 unsigned *offset_into_extent,
122 if (k->k->k.type != KEY_TYPE_reflink_p)
125 *data_btree = BTREE_ID_reflink;
126 return __bch2_read_indirect_extent(trans, offset_into_extent, k);
129 enum bch_read_flags {
130 BCH_READ_RETRY_IF_STALE = 1 << 0,
131 BCH_READ_MAY_PROMOTE = 1 << 1,
132 BCH_READ_USER_MAPPED = 1 << 2,
133 BCH_READ_NODECODE = 1 << 3,
134 BCH_READ_LAST_FRAGMENT = 1 << 4,
137 BCH_READ_MUST_BOUNCE = 1 << 5,
138 BCH_READ_MUST_CLONE = 1 << 6,
139 BCH_READ_IN_RETRY = 1 << 7,
142 int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
143 struct bvec_iter, struct bpos, enum btree_id,
144 struct bkey_s_c, unsigned,
145 struct bch_io_failures *, unsigned);
147 static inline void bch2_read_extent(struct btree_trans *trans,
148 struct bch_read_bio *rbio, struct bpos read_pos,
149 enum btree_id data_btree, struct bkey_s_c k,
150 unsigned offset_into_extent, unsigned flags)
152 __bch2_read_extent(trans, rbio, rbio->bio.bi_iter, read_pos,
153 data_btree, k, offset_into_extent, NULL, flags);
156 void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
157 subvol_inum, struct bch_io_failures *, unsigned flags);
159 static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
162 struct bch_io_failures failed = { .nr = 0 };
164 BUG_ON(rbio->_state);
167 rbio->start_time = local_clock();
168 rbio->subvol = inum.subvol;
170 __bch2_read(c, rbio, rbio->bio.bi_iter, inum, &failed,
171 BCH_READ_RETRY_IF_STALE|
172 BCH_READ_MAY_PROMOTE|
173 BCH_READ_USER_MAPPED);
176 static inline struct bch_read_bio *rbio_init(struct bio *bio,
177 struct bch_io_opts opts)
179 struct bch_read_bio *rbio = to_rbio(bio);
182 rbio->promote = NULL;
187 void bch2_fs_io_exit(struct bch_fs *);
188 int bch2_fs_io_init(struct bch_fs *);
190 #endif /* _BCACHEFS_IO_H */