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 *, bool);
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_DATA_ENCODED = (1 << 2),
31 BCH_WRITE_PAGES_STABLE = (1 << 3),
32 BCH_WRITE_PAGES_OWNED = (1 << 4),
33 BCH_WRITE_ONLY_SPECIFIED_DEVS = (1 << 5),
34 BCH_WRITE_WROTE_DATA_INLINE = (1 << 6),
35 BCH_WRITE_CHECK_ENOSPC = (1 << 7),
36 BCH_WRITE_SYNC = (1 << 8),
37 BCH_WRITE_MOVE = (1 << 9),
40 BCH_WRITE_DONE = (1 << 10),
41 BCH_WRITE_IO_ERROR = (1 << 11),
42 BCH_WRITE_CONVERT_UNWRITTEN = (1 << 12),
45 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
47 return op->alloc_reserve == RESERVE_movinggc
49 : op->c->btree_update_wq;
52 int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
53 struct bkey_i *, bool *, s64 *, s64 *);
54 int bch2_extent_update(struct btree_trans *, subvol_inum,
55 struct btree_iter *, struct bkey_i *,
56 struct disk_reservation *, u64, s64 *, bool);
57 int bch2_extent_fallocate(struct btree_trans *, subvol_inum, struct btree_iter *,
58 unsigned, struct bch_io_opts, s64 *,
59 struct write_point_specifier);
61 int bch2_fpunch_at(struct btree_trans *, struct btree_iter *,
62 subvol_inum, u64, s64 *);
63 int bch2_fpunch(struct bch_fs *c, subvol_inum, u64, u64, s64 *);
65 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
66 struct bch_io_opts opts)
73 op->csum_type = bch2_data_checksum_type(c, opts);
74 op->compression_type = bch2_compression_opt_to_type[opts.compression];
76 op->nr_replicas_required = c->opts.data_replicas_required;
77 op->alloc_reserve = RESERVE_none;
78 op->incompressible = 0;
79 op->open_buckets.nr = 0;
85 op->version = ZERO_VERSION;
86 op->write_point = (struct write_point_specifier) { 0 };
87 op->res = (struct disk_reservation) { 0 };
88 op->new_i_size = U64_MAX;
89 op->i_sectors_delta = 0;
90 op->devs_need_flush = NULL;
93 void bch2_write(struct closure *);
95 void bch2_write_point_do_index_updates(struct work_struct *);
97 static inline struct bch_write_bio *wbio_init(struct bio *bio)
99 struct bch_write_bio *wbio = to_wbio(bio);
101 memset(wbio, 0, offsetof(struct bch_write_bio, bio));
105 struct bch_devs_mask;
106 struct cache_promote_op;
107 struct extent_ptr_decoded;
109 int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
112 static inline int bch2_read_indirect_extent(struct btree_trans *trans,
113 enum btree_id *data_btree,
114 unsigned *offset_into_extent,
117 if (k->k->k.type != KEY_TYPE_reflink_p)
120 *data_btree = BTREE_ID_reflink;
121 return __bch2_read_indirect_extent(trans, offset_into_extent, k);
124 enum bch_read_flags {
125 BCH_READ_RETRY_IF_STALE = 1 << 0,
126 BCH_READ_MAY_PROMOTE = 1 << 1,
127 BCH_READ_USER_MAPPED = 1 << 2,
128 BCH_READ_NODECODE = 1 << 3,
129 BCH_READ_LAST_FRAGMENT = 1 << 4,
132 BCH_READ_MUST_BOUNCE = 1 << 5,
133 BCH_READ_MUST_CLONE = 1 << 6,
134 BCH_READ_IN_RETRY = 1 << 7,
137 int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
138 struct bvec_iter, struct bpos, enum btree_id,
139 struct bkey_s_c, unsigned,
140 struct bch_io_failures *, unsigned);
142 static inline void bch2_read_extent(struct btree_trans *trans,
143 struct bch_read_bio *rbio, struct bpos read_pos,
144 enum btree_id data_btree, struct bkey_s_c k,
145 unsigned offset_into_extent, unsigned flags)
147 __bch2_read_extent(trans, rbio, rbio->bio.bi_iter, read_pos,
148 data_btree, k, offset_into_extent, NULL, flags);
151 void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
152 subvol_inum, struct bch_io_failures *, unsigned flags);
154 static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
157 struct bch_io_failures failed = { .nr = 0 };
159 BUG_ON(rbio->_state);
162 rbio->start_time = local_clock();
163 rbio->subvol = inum.subvol;
165 __bch2_read(c, rbio, rbio->bio.bi_iter, inum, &failed,
166 BCH_READ_RETRY_IF_STALE|
167 BCH_READ_MAY_PROMOTE|
168 BCH_READ_USER_MAPPED);
171 static inline struct bch_read_bio *rbio_init(struct bio *bio,
172 struct bch_io_opts opts)
174 struct bch_read_bio *rbio = to_rbio(bio);
177 rbio->promote = NULL;
182 void bch2_fs_io_exit(struct bch_fs *);
183 int bch2_fs_io_init(struct bch_fs *);
185 #endif /* _BCACHEFS_IO_H */