+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BUCKETS_TYPES_H
#define _BUCKETS_TYPES_H
struct bucket_mark {
union {
- struct {
- atomic64_t v;
- };
+ atomic64_t v;
struct {
- u8 gen;
- u8 data_type:3,
- gen_valid:1,
- owned_by_allocator:1,
- nouse:1,
- journal_seq_valid:1,
- stripe: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;
+ u8 gen;
+ u8 data_type:3,
+ owned_by_allocator:1,
+ journal_seq_valid:1,
+ stripe: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;
};
};
};
};
u16 io_time[2];
+ u8 oldest_gen;
+ unsigned gen_valid:1;
};
struct bucket_array {
struct bch_fs_usage {
/* all fields are in units of 512 byte sectors: */
- struct {
- u64 data[BCH_DATA_NR];
- u64 ec_data;
- u64 persistent_reserved;
- } replicas[BCH_REPLICAS_MAX];
+ u64 online_reserved;
- u64 buckets[BCH_DATA_NR];
+ /* fields after online_reserved are cleared/recalculated by gc: */
+ u64 gc_start[0];
- /* fields starting here aren't touched by gc: */
- u64 online_reserved;
- u64 available_cache;
+ u64 hidden;
+ u64 btree;
+ u64 data;
+ u64 cached;
+ u64 reserved;
+ u64 nr_inodes;
+
+ /* XXX: add stats for compression ratio */
+#if 0
+ u64 uncompressed;
+ u64 compressed;
+#endif
+
+ /* broken out: */
+
+ u64 persistent_reserved[BCH_REPLICAS_MAX];
+ u64 replicas[];
+};
+
+struct bch_fs_usage_short {
+ u64 capacity;
+ u64 used;
+ u64 free;
+ u64 nr_inodes;
+};
+
+struct replicas_delta {
+ s64 delta;
+ struct bch_replicas_entry r;
+} __packed;
+
+struct replicas_delta_list {
+ unsigned size;
+ unsigned used;
+
+ struct {} memset_start;
+ u64 nr_inodes;
+ u64 persistent_reserved[BCH_REPLICAS_MAX];
+ struct {} memset_end;
+ struct replicas_delta d[0];
};
/*
* A reservation for space on disk:
*/
struct disk_reservation {
- u64 sectors;
- u32 gen;
- unsigned nr_replicas;
+ u64 sectors;
+ u32 gen;
+ unsigned nr_replicas;
};
struct copygc_heap_entry {