1 files changed, 96 insertions, 0 deletions
diff --git a/fs/bcachefs/buckets_types.h b/fs/bcachefs/buckets_types.h
new file mode 100644
index 000000000000..5be90139dd0d
--- /dev/null
+++ b/fs/bcachefs/buckets_types.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BUCKETS_TYPES_H
+#define _BUCKETS_TYPES_H
+
+#include "util.h"
+
+struct bucket_mark {
+	union {
+	struct {
+		atomic64_t	v;
+	};
+
+	struct {
+		u8		gen;
+		u8		data_type:3,
+				gen_valid:1,
+				owned_by_allocator:1,
+				nouse:1,
+				journal_seq_valid:1;
+		u16		dirty_sectors;
+		u16		cached_sectors;
+
+		/*
+		 * low bits of journal sequence number when this bucket was most
+		 * recently modified: if journal_seq_valid is set, this bucket
+		 * can't be reused until the journal sequence number written to
+		 * disk is >= the bucket's journal sequence number:
+		 */
+		u16		journal_seq;
+	};
+	};
+};
+
+struct bucket {
+	union {
+		struct bucket_mark	_mark;
+		const struct bucket_mark mark;
+	};
+
+	u16				io_time[2];
+};
+
+struct bucket_array {
+	struct rcu_head		rcu;
+	u16			first_bucket;
+	size_t			nbuckets;
+	struct bucket		b[];
+};
+
+struct bch_dev_usage {
+	u64			buckets[BCH_DATA_NR];
+	u64			buckets_alloc;
+	u64			buckets_unavailable;
+
+	/* _compressed_ sectors: */
+	u64			sectors[BCH_DATA_NR];
+	u64			sectors_fragmented;
+};
+
+/* kill, switch to bch_data_type? */
+enum s_alloc {
+	S_META,
+	S_DIRTY,
+	S_ALLOC_NR,
+};
+
+struct bch_fs_usage {
+	/* all fields are in units of 512 byte sectors: */
+	/* _uncompressed_ sectors: */
+	u64			online_reserved;
+	u64			available_cache;
+
+	struct {
+		u64		data[S_ALLOC_NR];
+		u64		persistent_reserved;
+	}			s[BCH_REPLICAS_MAX];
+};
+
+/*
+ * A reservation for space on disk:
+ */
+struct disk_reservation {
+	u64		sectors;
+	u32		gen;
+	unsigned	nr_replicas;
+};
+
+struct copygc_heap_entry {
+	u8			gen;
+	u32			sectors;
+	u64			offset;
+};
+
+typedef HEAP(struct copygc_heap_entry) copygc_heap;
+
+#endif /* _BUCKETS_TYPES_H */