1 files changed, 112 insertions, 0 deletions
diff --git a/libbcachefs/buckets_types.h b/libbcachefs/buckets_types.h
new file mode 100644
index 00000000..ca187099
--- /dev/null
+++ b/libbcachefs/buckets_types.h
@@ -0,0 +1,112 @@
+#ifndef _BUCKETS_TYPES_H
+#define _BUCKETS_TYPES_H
+
+enum bucket_data_type {
+	BUCKET_DATA	= 0,
+	BUCKET_BTREE,
+	BUCKET_PRIOS,
+	BUCKET_JOURNAL,
+	BUCKET_SB,
+};
+
+struct bucket_mark {
+	union {
+	struct {
+		u64		counter;
+	};
+
+	struct {
+		u8		gen;
+
+		/* generation copygc is going to move this bucket into */
+		unsigned	copygc:1;
+
+		unsigned	journal_seq_valid:1;
+
+		/*
+		 * If this bucket had metadata while at the current generation
+		 * number, the allocator must increment its gen before we reuse
+		 * it:
+		 */
+		unsigned	had_metadata:1;
+
+		unsigned	owned_by_allocator:1;
+
+		unsigned	data_type:3;
+
+		unsigned	nouse: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 {
+			u16	read_prio;
+			u16	write_prio;
+		};
+		u16		prio[2];
+	};
+
+	union {
+		struct bucket_mark	_mark;
+		const struct bucket_mark mark;
+	};
+};
+
+enum s_compressed {
+	S_COMPRESSED,
+	S_UNCOMPRESSED,
+	S_COMPRESSED_NR,
+};
+
+enum s_alloc {
+	S_META,
+	S_DIRTY,
+	S_CACHED,
+	S_ALLOC_NR,
+};
+
+struct bch_dev_usage {
+	u64			buckets_dirty;
+	u64			buckets_cached;
+	u64			buckets_meta;
+	u64			buckets_alloc;
+
+	u64			sectors[S_ALLOC_NR];
+};
+
+struct bch_fs_usage {
+	/* all fields are in units of 512 byte sectors: */
+	u64			s[S_COMPRESSED_NR][S_ALLOC_NR];
+	u64			persistent_reserved;
+	u64			online_reserved;
+	u64			available_cache;
+};
+
+struct bucket_heap_entry {
+	struct bucket *g;
+	unsigned long val;
+};
+
+/*
+ * A reservation for space on disk:
+ */
+struct disk_reservation {
+	u64		sectors;
+	u32		gen;
+	unsigned	nr_replicas;
+};
+
+#endif /* _BUCKETS_TYPES_H */