#define _BCACHEFS_IO_H
#include "checksum.h"
+#include "bkey_buf.h"
#include "io_types.h"
#define to_wbio(_bio) \
#define BLK_STS_REMOVED ((__force blk_status_t)128)
+const char *bch2_blk_status_to_str(blk_status_t);
+
enum bch_write_flags {
BCH_WRITE_ALLOC_NOWAIT = (1 << 0),
BCH_WRITE_CACHED = (1 << 1),
BCH_WRITE_PAGES_STABLE = (1 << 4),
BCH_WRITE_PAGES_OWNED = (1 << 5),
BCH_WRITE_ONLY_SPECIFIED_DEVS = (1 << 6),
- BCH_WRITE_NOPUT_RESERVATION = (1 << 7),
- BCH_WRITE_WROTE_DATA_INLINE = (1 << 8),
+ BCH_WRITE_WROTE_DATA_INLINE = (1 << 7),
+ BCH_WRITE_FROM_INTERNAL = (1 << 8),
+ BCH_WRITE_CHECK_ENOSPC = (1 << 9),
/* Internal: */
- BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 9),
- BCH_WRITE_SKIP_CLOSURE_PUT = (1 << 10),
+ BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 10),
+ BCH_WRITE_SKIP_CLOSURE_PUT = (1 << 11),
+ BCH_WRITE_DONE = (1 << 12),
};
static inline u64 *op_journal_seq(struct bch_write_op *op)
? op->journal_seq_p : &op->journal_seq;
}
-static inline void op_journal_seq_set(struct bch_write_op *op, u64 *journal_seq)
-{
- op->journal_seq_p = journal_seq;
- op->flags |= BCH_WRITE_JOURNAL_SEQ_PTR;
-}
-
static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
{
return op->alloc_reserve == RESERVE_MOVINGGC
? op->c->copygc_wq
- : op->c->wq;
+ : op->c->btree_update_wq;
}
-int bch2_extent_update(struct btree_trans *, struct btree_iter *,
- struct bkey_i *, struct disk_reservation *,
- u64 *, u64, s64 *);
+int bch2_sum_sector_overwrites(struct btree_trans *, struct btree_iter *,
+ struct bkey_i *, bool *, s64 *, s64 *);
+int bch2_extent_update(struct btree_trans *, subvol_inum,
+ struct btree_iter *, struct bkey_i *,
+ struct disk_reservation *, u64 *, u64, s64 *, bool);
+
int bch2_fpunch_at(struct btree_trans *, struct btree_iter *,
- struct bpos, u64 *, s64 *);
-int bch2_fpunch(struct bch_fs *c, u64, u64, u64, u64 *, s64 *);
+ subvol_inum, u64, s64 *);
+int bch2_fpunch(struct bch_fs *c, subvol_inum, u64, u64, s64 *);
int bch2_write_index_default(struct bch_write_op *);
op->devs_have.nr = 0;
op->target = 0;
op->opts = opts;
+ op->subvol = 0;
op->pos = POS_MAX;
op->version = ZERO_VERSION;
op->write_point = (struct write_point_specifier) { 0 };
struct extent_ptr_decoded;
int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
- struct bkey_i *);
+ struct bkey_buf *);
static inline int bch2_read_indirect_extent(struct btree_trans *trans,
+ enum btree_id *data_btree,
unsigned *offset_into_extent,
- struct bkey_i *k)
+ struct bkey_buf *k)
{
- return k->k.type == KEY_TYPE_reflink_p
- ? __bch2_read_indirect_extent(trans, offset_into_extent, k)
- : 0;
+ if (k->k->k.type != KEY_TYPE_reflink_p)
+ return 0;
+
+ *data_btree = BTREE_ID_reflink;
+ return __bch2_read_indirect_extent(trans, offset_into_extent, k);
}
enum bch_read_flags {
BCH_READ_IN_RETRY = 1 << 7,
};
-int __bch2_read_extent(struct bch_fs *, struct bch_read_bio *,
- struct bvec_iter, struct bkey_s_c, unsigned,
+int __bch2_read_extent(struct btree_trans *, struct bch_read_bio *,
+ struct bvec_iter, struct bpos, enum btree_id,
+ struct bkey_s_c, unsigned,
struct bch_io_failures *, unsigned);
-static inline void bch2_read_extent(struct bch_fs *c,
- struct bch_read_bio *rbio,
- struct bkey_s_c k,
- unsigned offset_into_extent,
- unsigned flags)
+static inline void bch2_read_extent(struct btree_trans *trans,
+ struct bch_read_bio *rbio, struct bpos read_pos,
+ enum btree_id data_btree, struct bkey_s_c k,
+ unsigned offset_into_extent, unsigned flags)
{
- __bch2_read_extent(c, rbio, rbio->bio.bi_iter, k,
- offset_into_extent, NULL, flags);
+ __bch2_read_extent(trans, rbio, rbio->bio.bi_iter, read_pos,
+ data_btree, k, offset_into_extent, NULL, flags);
}
-void bch2_read(struct bch_fs *, struct bch_read_bio *, u64);
+void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
+ subvol_inum, struct bch_io_failures *, unsigned flags);
+
+static inline void bch2_read(struct bch_fs *c, struct bch_read_bio *rbio,
+ subvol_inum inum)
+{
+ struct bch_io_failures failed = { .nr = 0 };
+
+ BUG_ON(rbio->_state);
+
+ rbio->c = c;
+ rbio->start_time = local_clock();
+ rbio->subvol = inum.subvol;
+
+ __bch2_read(c, rbio, rbio->bio.bi_iter, inum, &failed,
+ BCH_READ_RETRY_IF_STALE|
+ BCH_READ_MAY_PROMOTE|
+ BCH_READ_USER_MAPPED);
+}
static inline struct bch_read_bio *rbio_init(struct bio *bio,
struct bch_io_opts opts)