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 #ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT
19 void bch2_latency_acct(struct bch_dev *, u64, int);
21 static inline void bch2_latency_acct(struct bch_dev *ca, u64 submit_time, int rw) {}
24 void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
25 enum bch_data_type, const struct bkey_i *, bool);
27 #define BLK_STS_REMOVED ((__force blk_status_t)128)
29 const char *bch2_blk_status_to_str(blk_status_t);
31 #define BCH_WRITE_FLAGS() \
37 x(ONLY_SPECIFIED_DEVS) \
38 x(WROTE_DATA_INLINE) \
48 enum __bch_write_flags {
49 #define x(f) __BCH_WRITE_##f,
54 enum bch_write_flags {
55 #define x(f) BCH_WRITE_##f = 1U << __BCH_WRITE_##f,
60 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
62 return op->alloc_reserve == RESERVE_movinggc
64 : op->c->btree_update_wq;
67 int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
68 struct bkey_i *, bool *, s64 *, s64 *);
69 int bch2_extent_update(struct btree_trans *, subvol_inum,
70 struct btree_iter *, struct bkey_i *,
71 struct disk_reservation *, u64, s64 *, bool);
72 int bch2_extent_fallocate(struct btree_trans *, subvol_inum, struct btree_iter *,
73 unsigned, struct bch_io_opts, s64 *,
74 struct write_point_specifier);
76 int bch2_fpunch_at(struct btree_trans *, struct btree_iter *,
77 subvol_inum, u64, s64 *);
78 int bch2_fpunch(struct bch_fs *c, subvol_inum, u64, u64, s64 *);
80 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
81 struct bch_io_opts opts)
88 op->csum_type = bch2_data_checksum_type(c, opts);
89 op->compression_type = bch2_compression_opt_to_type[opts.compression];
91 op->nr_replicas_required = c->opts.data_replicas_required;
92 op->alloc_reserve = RESERVE_none;
93 op->incompressible = 0;
94 op->open_buckets.nr = 0;
100 op->version = ZERO_VERSION;
101 op->write_point = (struct write_point_specifier) { 0 };
102 op->res = (struct disk_reservation) { 0 };
103 op->new_i_size = U64_MAX;
104 op->i_sectors_delta = 0;
105 op->devs_need_flush = NULL;
108 void bch2_write(struct closure *);
110 void bch2_write_point_do_index_updates(struct work_struct *);
112 static inline struct bch_write_bio *wbio_init(struct bio *bio)
114 struct bch_write_bio *wbio = to_wbio(bio);
116 memset(wbio, 0, offsetof(struct bch_write_bio, bio));
120 void bch2_write_op_to_text(struct printbuf *, struct bch_write_op *);
122 struct bch_devs_mask;
123 struct cache_promote_op;
124 struct extent_ptr_decoded;
126 int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
129 static inline int bch2_read_indirect_extent(struct btree_trans *trans,
130 enum btree_id *data_btree,
131 unsigned *offset_into_extent,
134 if (k->k->k.type != KEY_TYPE_reflink_p)
137 *data_btree = BTREE_ID_reflink;
138 return __bch2_read_indirect_extent(trans, offset_into_extent, k);
141 enum bch_read_flags {
142 BCH_READ_RETRY_IF_STALE = 1 << 0,
143 BCH_READ_MAY_PROMOTE = 1 << 1,
144 BCH_READ_USER_MAPPED = 1 << 2,
145 BCH_READ_NODECODE = 1 << 3,
146 BCH_READ_LAST_FRAGMENT = 1 << 4,
149 BCH_READ_MUST_BOUNCE = 1 << 5,
150 BCH_READ_MUST_CLONE = 1 << 6,
151 BCH_READ_IN_RETRY = 1 << 7,
154 int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
155 struct bvec_iter, struct bpos, enum btree_id,
156 struct bkey_s_c, unsigned,
157 struct bch_io_failures *, unsigned);
159 static inline void bch2_read_extent(struct btree_trans *trans,
160 struct bch_read_bio *rbio, struct bpos read_pos,
161 enum btree_id data_btree, struct bkey_s_c k,
162 unsigned offset_into_extent, unsigned flags)
164 __bch2_read_extent(trans, rbio, rbio->bio.bi_iter, read_pos,
165 data_btree, k, offset_into_extent, NULL, flags);
168 void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
169 subvol_inum, struct bch_io_failures *, unsigned flags);
171 static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
174 struct bch_io_failures failed = { .nr = 0 };
176 BUG_ON(rbio->_state);
179 rbio->start_time = local_clock();
180 rbio->subvol = inum.subvol;
182 __bch2_read(c, rbio, rbio->bio.bi_iter, inum, &failed,
183 BCH_READ_RETRY_IF_STALE|
184 BCH_READ_MAY_PROMOTE|
185 BCH_READ_USER_MAPPED);
188 static inline struct bch_read_bio *rbio_init(struct bio *bio,
189 struct bch_io_opts opts)
191 struct bch_read_bio *rbio = to_rbio(bio);
194 rbio->promote = NULL;
199 void bch2_fs_io_exit(struct bch_fs *);
200 int bch2_fs_io_init(struct bch_fs *);
202 #endif /* _BCACHEFS_IO_H */