+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_IO_H
#define _BCACHEFS_IO_H
-#include <linux/hash.h>
-#include "alloc.h"
#include "checksum.h"
+#include "bkey_buf.h"
#include "io_types.h"
#define to_wbio(_bio) \
void bch2_bio_free_pages_pool(struct bch_fs *, struct bio *);
void bch2_bio_alloc_pages_pool(struct bch_fs *, struct bio *, size_t);
-void bch2_bio_alloc_more_pages_pool(struct bch_fs *, struct bio *, size_t);
-void bch2_latency_acct(struct bch_dev *, unsigned, int);
+void bch2_latency_acct(struct bch_dev *, u64, int);
void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
enum bch_data_type, const struct bkey_i *);
+#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_WROTE_DATA_INLINE = (1 << 7),
+ BCH_WRITE_FROM_INTERNAL = (1 << 8),
+ BCH_WRITE_CHECK_ENOSPC = (1 << 9),
/* Internal: */
- BCH_WRITE_JOURNAL_SEQ_PTR = (1 << 7),
- BCH_WRITE_DONE = (1 << 8),
- BCH_WRITE_LOOPED = (1 << 9),
+ 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)
static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
{
- return op->alloc_reserve == RESERVE_MOVINGGC
+ return op->alloc_reserve == RESERVE_movinggc
? op->c->copygc_wq
- : op->c->wq;
+ : op->c->btree_update_wq;
}
+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 *,
+ 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 *);
-static inline void __bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c)
+static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
+ struct bch_io_opts opts)
{
op->c = c;
- op->io_wq = index_update_wq(op);
+ op->end_io = NULL;
op->flags = 0;
op->written = 0;
op->error = 0;
- op->csum_type = bch2_data_checksum_type(c);
- op->compression_type =
- bch2_compression_opt_to_type(c->opts.compression);
+ op->csum_type = bch2_data_checksum_type(c, opts.data_checksum);
+ op->compression_type = bch2_compression_opt_to_type[opts.compression];
op->nr_replicas = 0;
op->nr_replicas_required = c->opts.data_replicas_required;
- op->alloc_reserve = RESERVE_NONE;
- op->open_buckets_nr = 0;
+ op->alloc_reserve = RESERVE_none;
+ op->incompressible = 0;
+ op->open_buckets.nr = 0;
op->devs_have.nr = 0;
+ op->target = 0;
+ op->opts = opts;
+ op->subvol = 0;
op->pos = POS_MAX;
op->version = ZERO_VERSION;
- op->devs = NULL;
op->write_point = (struct write_point_specifier) { 0 };
op->res = (struct disk_reservation) { 0 };
op->journal_seq = 0;
+ op->new_i_size = U64_MAX;
+ op->i_sectors_delta = 0;
op->index_update_fn = bch2_write_index_default;
}
-static inline void bch2_write_op_init(struct bch_write_op *op, struct bch_fs *c,
- struct disk_reservation res,
- struct bch_devs_mask *devs,
- struct write_point_specifier write_point,
- struct bpos pos,
- u64 *journal_seq, unsigned flags)
-{
- __bch2_write_op_init(op, c);
- op->flags = flags;
- op->nr_replicas = res.nr_replicas;
- op->pos = pos;
- op->res = res;
- op->devs = devs;
- op->write_point = write_point;
-
- if (journal_seq) {
- op->journal_seq_p = journal_seq;
- op->flags |= BCH_WRITE_JOURNAL_SEQ_PTR;
- }
-}
-
void bch2_write(struct closure *);
static inline struct bch_write_bio *wbio_init(struct bio *bio)
struct bch_devs_mask;
struct cache_promote_op;
-struct extent_pick_ptr;
+struct extent_ptr_decoded;
-int __bch2_read_extent(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
- struct bkey_s_c_extent e, struct extent_pick_ptr *,
- unsigned);
-void __bch2_read(struct bch_fs *, struct bch_read_bio *, struct bvec_iter,
- u64, struct bch_devs_mask *, unsigned);
+int __bch2_read_indirect_extent(struct btree_trans *, unsigned *,
+ 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_buf *k)
+{
+ 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_RETRY_IF_STALE = 1 << 0,
BCH_READ_MAY_PROMOTE = 1 << 1,
BCH_READ_USER_MAPPED = 1 << 2,
BCH_READ_NODECODE = 1 << 3,
+ BCH_READ_LAST_FRAGMENT = 1 << 4,
/* internal: */
- BCH_READ_MUST_BOUNCE = 1 << 4,
- BCH_READ_MUST_CLONE = 1 << 5,
- BCH_READ_IN_RETRY = 1 << 6,
+ BCH_READ_MUST_BOUNCE = 1 << 5,
+ BCH_READ_MUST_CLONE = 1 << 6,
+ BCH_READ_IN_RETRY = 1 << 7,
};
-static inline void bch2_read_extent(struct bch_fs *c,
- struct bch_read_bio *rbio,
- struct bkey_s_c_extent e,
- struct extent_pick_ptr *pick,
- unsigned flags)
+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 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)
{
- rbio->_state = 0;
- __bch2_read_extent(c, rbio, rbio->bio.bi_iter, e, pick, 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 *, 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,
- u64 inode)
+ subvol_inum inum)
{
- rbio->_state = 0;
- __bch2_read(c, rbio, rbio->bio.bi_iter, inode, NULL,
+ 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)
+static inline struct bch_read_bio *rbio_init(struct bio *bio,
+ struct bch_io_opts opts)
{
struct bch_read_bio *rbio = to_rbio(bio);
- rbio->_state = 0;
+ rbio->_state = 0;
+ rbio->promote = NULL;
+ rbio->opts = opts;
return rbio;
}
+void bch2_fs_io_exit(struct bch_fs *);
+int bch2_fs_io_init(struct bch_fs *);
+
#endif /* _BCACHEFS_IO_H */
projects / bcachefs-tools-debian / blobdiff