move Rust sources to top level, C sources into c_src

This moves the Rust sources out of rust_src/ and into the top level.
Running the bcachefs executable out of the development tree is now:

$ ./target/release/bcachefs command
or
$ cargo run --profile release -- command

instead of "./bcachefs command".

Building and installing is still:

$ make && make install

Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 41 insertions, 0 deletions

diff --git a/c_src/libbcachefs/super_types.h b/c_src/libbcachefs/super_types.h
new file mode 100644
index 00000000..87d159b9
--- /dev/null
+++ b/c_src/libbcachefs/super_types.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_SUPER_TYPES_H
+#define _BCACHEFS_SUPER_TYPES_H
+
+struct bch_sb_handle {
+	struct bch_sb		*sb;
+	struct block_device	*bdev;
+	char			*sb_name;
+	struct bio		*bio;
+	void			*holder;
+	size_t			buffer_size;
+	blk_mode_t		mode;
+	unsigned		have_layout:1;
+	unsigned		have_bio:1;
+	unsigned		fs_sb:1;
+	u64			seq;
+};
+
+struct bch_devs_mask {
+	unsigned long d[BITS_TO_LONGS(BCH_SB_MEMBERS_MAX)];
+};
+
+struct bch_devs_list {
+	u8			nr;
+	u8			data[BCH_BKEY_PTRS_MAX];
+};
+
+struct bch_member_cpu {
+	u64			nbuckets;	/* device size */
+	u16			first_bucket;   /* index of first bucket used */
+	u16			bucket_size;	/* sectors */
+	u16			group;
+	u8			state;
+	u8			discard;
+	u8			data_allowed;
+	u8			durability;
+	u8			freespace_initialized;
+	u8			valid;
+};
+
+#endif /* _BCACHEFS_SUPER_TYPES_H */