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, 43 insertions, 0 deletions

diff --git a/c_src/libbcachefs/quota_types.h b/c_src/libbcachefs/quota_types.h
new file mode 100644
index 00000000..6a136083
--- /dev/null
+++ b/c_src/libbcachefs/quota_types.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_QUOTA_TYPES_H
+#define _BCACHEFS_QUOTA_TYPES_H
+
+#include <linux/generic-radix-tree.h>
+
+struct bch_qid {
+	u32		q[QTYP_NR];
+};
+
+enum quota_acct_mode {
+	KEY_TYPE_QUOTA_PREALLOC,
+	KEY_TYPE_QUOTA_WARN,
+	KEY_TYPE_QUOTA_NOCHECK,
+};
+
+struct memquota_counter {
+	u64				v;
+	u64				hardlimit;
+	u64				softlimit;
+	s64				timer;
+	int				warns;
+	int				warning_issued;
+};
+
+struct bch_memquota {
+	struct memquota_counter		c[Q_COUNTERS];
+};
+
+typedef GENRADIX(struct bch_memquota)	bch_memquota_table;
+
+struct quota_limit {
+	u32				timelimit;
+	u32				warnlimit;
+};
+
+struct bch_memquota_type {
+	struct quota_limit		limits[Q_COUNTERS];
+	bch_memquota_table		table;
+	struct mutex			lock;
+};
+
+#endif /* _BCACHEFS_QUOTA_TYPES_H */