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-rw-r--r--fs/bcachefs/io_write.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/fs/bcachefs/io_write.h b/fs/bcachefs/io_write.h
new file mode 100644
index 0000000000..6c276a48f9
--- /dev/null
+++ b/fs/bcachefs/io_write.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_IO_WRITE_H
+#define _BCACHEFS_IO_WRITE_H
+
+#include "checksum.h"
+#include "io_write_types.h"
+
+#define to_wbio(_bio) \
+ container_of((_bio), struct bch_write_bio, 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);
+
+#ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT
+void bch2_latency_acct(struct bch_dev *, u64, int);
+#else
+static inline void bch2_latency_acct(struct bch_dev *ca, u64 submit_time, int rw) {}
+#endif
+
+void bch2_submit_wbio_replicas(struct bch_write_bio *, struct bch_fs *,
+ enum bch_data_type, const struct bkey_i *, bool);
+
+#define BCH_WRITE_FLAGS() \
+ x(ALLOC_NOWAIT) \
+ x(CACHED) \
+ x(DATA_ENCODED) \
+ x(PAGES_STABLE) \
+ x(PAGES_OWNED) \
+ x(ONLY_SPECIFIED_DEVS) \
+ x(WROTE_DATA_INLINE) \
+ x(FROM_INTERNAL) \
+ x(CHECK_ENOSPC) \
+ x(SYNC) \
+ x(MOVE) \
+ x(IN_WORKER) \
+ x(DONE) \
+ x(IO_ERROR) \
+ x(CONVERT_UNWRITTEN)
+
+enum __bch_write_flags {
+#define x(f) __BCH_WRITE_##f,
+ BCH_WRITE_FLAGS()
+#undef x
+};
+
+enum bch_write_flags {
+#define x(f) BCH_WRITE_##f = BIT(__BCH_WRITE_##f),
+ BCH_WRITE_FLAGS()
+#undef x
+};
+
+static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
+{
+ return op->watermark == BCH_WATERMARK_copygc
+ ? op->c->copygc_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, s64 *, bool);
+
+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->end_io = NULL;
+ op->flags = 0;
+ op->written = 0;
+ op->error = 0;
+ op->csum_type = bch2_data_checksum_type(c, opts);
+ op->compression_opt = opts.compression;
+ op->nr_replicas = 0;
+ op->nr_replicas_required = c->opts.data_replicas_required;
+ op->watermark = BCH_WATERMARK_normal;
+ 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->write_point = (struct write_point_specifier) { 0 };
+ op->res = (struct disk_reservation) { 0 };
+ op->new_i_size = U64_MAX;
+ op->i_sectors_delta = 0;
+ op->devs_need_flush = NULL;
+}
+
+CLOSURE_CALLBACK(bch2_write);
+void bch2_write_point_do_index_updates(struct work_struct *);
+
+static inline struct bch_write_bio *wbio_init(struct bio *bio)
+{
+ struct bch_write_bio *wbio = to_wbio(bio);
+
+ memset(&wbio->wbio, 0, sizeof(wbio->wbio));
+ return wbio;
+}
+
+void bch2_write_op_to_text(struct printbuf *, struct bch_write_op *);
+
+void bch2_fs_io_write_exit(struct bch_fs *);
+int bch2_fs_io_write_init(struct bch_fs *);
+
+#endif /* _BCACHEFS_IO_WRITE_H */