1 /* SPDX-License-Identifier: GPL-2.0 */
6 #include "bkey_on_stack.h"
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),
39 BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 9),
40 BCH_WRITE_SKIP_CLOSURE_PUT = (1 << 10),
41 BCH_WRITE_DONE = (1 << 11),
44 static inline u64 *op_journal_seq(struct bch_write_op *op)
46 return (op->flags & BCH_WRITE_JOURNAL_SEQ_PTR)
47 ? op->journal_seq_p : &op->journal_seq;
50 static inline void op_journal_seq_set(struct bch_write_op *op, u64 *journal_seq)
52 op->journal_seq_p = journal_seq;
53 op->flags |= BCH_WRITE_JOURNAL_SEQ_PTR;
56 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
58 return op->alloc_reserve == RESERVE_MOVINGGC
63 int bch2_extent_update(struct btree_trans *, struct btree_iter *,
64 struct bkey_i *, struct disk_reservation *,
66 int bch2_fpunch_at(struct btree_trans *, struct btree_iter *,
67 struct bpos, u64 *, s64 *);
68 int bch2_fpunch(struct bch_fs *c, u64, u64, u64, u64 *, s64 *);
70 int bch2_write_index_default(struct bch_write_op *);
72 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
73 struct bch_io_opts opts)
80 op->csum_type = bch2_data_checksum_type(c, opts.data_checksum);
81 op->compression_type = bch2_compression_opt_to_type[opts.compression];
83 op->nr_replicas_required = c->opts.data_replicas_required;
84 op->alloc_reserve = RESERVE_NONE;
85 op->incompressible = 0;
86 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 *,
115 struct bkey_on_stack *);
117 static inline int bch2_read_indirect_extent(struct btree_trans *trans,
118 unsigned *offset_into_extent,
119 struct bkey_on_stack *k)
121 return k->k->k.type == KEY_TYPE_reflink_p
122 ? __bch2_read_indirect_extent(trans, offset_into_extent, k)
126 enum bch_read_flags {
127 BCH_READ_RETRY_IF_STALE = 1 << 0,
128 BCH_READ_MAY_PROMOTE = 1 << 1,
129 BCH_READ_USER_MAPPED = 1 << 2,
130 BCH_READ_NODECODE = 1 << 3,
131 BCH_READ_LAST_FRAGMENT = 1 << 4,
134 BCH_READ_MUST_BOUNCE = 1 << 5,
135 BCH_READ_MUST_CLONE = 1 << 6,
136 BCH_READ_IN_RETRY = 1 << 7,
139 int __bch2_read_extent(struct bch_fs *, struct bch_read_bio *,
140 struct bvec_iter, struct bkey_s_c, unsigned,
141 struct bch_io_failures *, unsigned);
143 static inline void bch2_read_extent(struct bch_fs *c,
144 struct bch_read_bio *rbio,
146 unsigned offset_into_extent,
149 __bch2_read_extent(c, rbio, rbio->bio.bi_iter, k,
150 offset_into_extent, NULL, flags);
153 void bch2_read(struct bch_fs *, struct bch_read_bio *, u64);
155 static inline struct bch_read_bio *rbio_init(struct bio *bio,
156 struct bch_io_opts opts)
158 struct bch_read_bio *rbio = to_rbio(bio);
161 rbio->promote = NULL;
166 void bch2_fs_io_exit(struct bch_fs *);
167 int bch2_fs_io_init(struct bch_fs *);
169 #endif /* _BCACHEFS_IO_H */