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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BUCKETS_TYPES_H
#define _BUCKETS_TYPES_H
#include "bcachefs_format.h"
#include "util.h"
#define BUCKET_JOURNAL_SEQ_BITS 16
struct bucket_mark {
union {
atomic64_t v;
struct {
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;
};
};
};
struct bucket {
union {
struct bucket_mark _mark;
const struct bucket_mark mark;
};
u16 io_time[2];
u8 oldest_gen;
u8 gc_gen;
unsigned gen_valid:1;
};
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_ec;
u64 buckets_unavailable;
/* _compressed_ sectors: */
u64 sectors[BCH_DATA_NR];
u64 sectors_fragmented;
};
struct bch_fs_usage {
/* all fields are in units of 512 byte sectors: */
u64 online_reserved;
/* fields after online_reserved are cleared/recalculated by gc: */
u64 gc_start[0];
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;
};
struct copygc_heap_entry {
u8 gen;
u32 sectors;
u64 offset;
};
typedef HEAP(struct copygc_heap_entry) copygc_heap;
#endif /* _BUCKETS_TYPES_H */
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