7 #define to_wbio(_bio) \
8 container_of((_bio), struct bch_write_bio, bio)
10 #define to_rbio(_bio) \
11 container_of((_bio), struct bch_read_bio, bio)
13 void bch2_bio_free_pages_pool(struct bch_fs *, struct bio *);
14 void bch2_bio_alloc_pages_pool(struct bch_fs *, struct bio *, size_t);
15 void bch2_bio_alloc_more_pages_pool(struct bch_fs *, struct bio *, size_t);
17 void bch2_latency_acct(struct bch_dev *, u64, int);
19 void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
20 enum bch_data_type, const struct bkey_i *);
22 #define BLK_STS_REMOVED ((__force blk_status_t)128)
24 enum bch_write_flags {
25 BCH_WRITE_ALLOC_NOWAIT = (1 << 0),
26 BCH_WRITE_CACHED = (1 << 1),
27 BCH_WRITE_FLUSH = (1 << 2),
28 BCH_WRITE_DATA_ENCODED = (1 << 3),
29 BCH_WRITE_PAGES_STABLE = (1 << 4),
30 BCH_WRITE_PAGES_OWNED = (1 << 5),
31 BCH_WRITE_ONLY_SPECIFIED_DEVS = (1 << 6),
32 BCH_WRITE_NOPUT_RESERVATION = (1 << 7),
35 BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 8),
38 static inline u64 *op_journal_seq(struct bch_write_op *op)
40 return (op->flags & BCH_WRITE_JOURNAL_SEQ_PTR)
41 ? op->journal_seq_p : &op->journal_seq;
44 static inline void op_journal_seq_set(struct bch_write_op *op, u64 *journal_seq)
46 op->journal_seq_p = journal_seq;
47 op->flags |= BCH_WRITE_JOURNAL_SEQ_PTR;
50 static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
52 return op->alloc_reserve == RESERVE_MOVINGGC
57 int bch2_write_index_default(struct bch_write_op *);
59 static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
60 struct bch_io_opts opts)
63 op->io_wq = index_update_wq(op);
67 op->csum_type = bch2_data_checksum_type(c, opts.data_checksum);
68 op->compression_type = bch2_compression_opt_to_type[opts.compression];
70 op->nr_replicas_required = c->opts.data_replicas_required;
71 op->alloc_reserve = RESERVE_NONE;
72 op->open_buckets.nr = 0;
77 op->version = ZERO_VERSION;
78 op->write_point = (struct write_point_specifier) { 0 };
79 op->res = (struct disk_reservation) { 0 };
81 op->index_update_fn = bch2_write_index_default;
84 void bch2_write(struct closure *);
86 static inline struct bch_write_bio *wbio_init(struct bio *bio)
88 struct bch_write_bio *wbio = to_wbio(bio);
90 memset(wbio, 0, offsetof(struct bch_write_bio, bio));
95 struct cache_promote_op;
96 struct extent_ptr_decoded;
98 int __bch2_read_extent(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
99 struct bkey_s_c, struct bch_io_failures *, unsigned);
100 void bch2_read(struct bch_fs *, struct bch_read_bio *, u64);
102 enum bch_read_flags {
103 BCH_READ_RETRY_IF_STALE = 1 << 0,
104 BCH_READ_MAY_PROMOTE = 1 << 1,
105 BCH_READ_USER_MAPPED = 1 << 2,
106 BCH_READ_NODECODE = 1 << 3,
107 BCH_READ_LAST_FRAGMENT = 1 << 4,
110 BCH_READ_MUST_BOUNCE = 1 << 5,
111 BCH_READ_MUST_CLONE = 1 << 6,
112 BCH_READ_IN_RETRY = 1 << 7,
115 static inline void bch2_read_extent(struct bch_fs *c,
116 struct bch_read_bio *rbio,
120 __bch2_read_extent(c, rbio, rbio->bio.bi_iter, k, NULL, flags);
123 static inline struct bch_read_bio *rbio_init(struct bio *bio,
124 struct bch_io_opts opts)
126 struct bch_read_bio *rbio = to_rbio(bio);
129 rbio->promote = NULL;
134 void bch2_fs_io_exit(struct bch_fs *);
135 int bch2_fs_io_init(struct bch_fs *);
137 #endif /* _BCACHEFS_IO_H */