move Rust sources to top level, C sources into c_src

[bcachefs-tools-debian] / c_src / libbcachefs / io_write.h

diff --git a/c_src/libbcachefs/io_write.h b/c_src/libbcachefs/io_write.h
new file mode 100644 (file)
index 0000000..6c276a4
--- /dev/null
+++ b/c_src/libbcachefs/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 */