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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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451570a5bc
Full mark and sweep gc doesn't (yet?) work with the new btree key cache code, but it also blocks updates to interior btree nodes for the duration and isn't really necessary in practice; we aren't currently attempting to repair errors in allocation info at runtime. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
129 lines
2.2 KiB
C
129 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BUCKETS_TYPES_H
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#define _BUCKETS_TYPES_H
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#include "bcachefs_format.h"
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#include "util.h"
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#define BUCKET_JOURNAL_SEQ_BITS 16
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struct bucket_mark {
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union {
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atomic64_t v;
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struct {
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u8 gen;
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u8 data_type:3,
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owned_by_allocator:1,
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journal_seq_valid:1,
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stripe:1;
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u16 dirty_sectors;
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u16 cached_sectors;
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/*
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* low bits of journal sequence number when this bucket was most
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* recently modified: if journal_seq_valid is set, this bucket can't be
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* reused until the journal sequence number written to disk is >= the
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* bucket's journal sequence number:
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*/
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u16 journal_seq;
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};
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};
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};
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struct bucket {
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union {
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struct bucket_mark _mark;
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const struct bucket_mark mark;
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};
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u16 io_time[2];
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u8 oldest_gen;
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u8 gc_gen;
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unsigned gen_valid:1;
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};
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struct bucket_array {
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struct rcu_head rcu;
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u16 first_bucket;
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size_t nbuckets;
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struct bucket b[];
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};
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struct bch_dev_usage {
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u64 buckets[BCH_DATA_NR];
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u64 buckets_ec;
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u64 buckets_unavailable;
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/* _compressed_ sectors: */
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u64 sectors[BCH_DATA_NR];
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u64 sectors_fragmented;
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};
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struct bch_fs_usage {
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/* all fields are in units of 512 byte sectors: */
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u64 hidden;
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u64 btree;
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u64 data;
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u64 cached;
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u64 reserved;
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u64 nr_inodes;
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/* XXX: add stats for compression ratio */
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#if 0
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u64 uncompressed;
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u64 compressed;
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#endif
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/* broken out: */
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u64 persistent_reserved[BCH_REPLICAS_MAX];
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u64 replicas[];
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};
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struct bch_fs_usage_online {
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u64 online_reserved;
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struct bch_fs_usage u;
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};
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struct bch_fs_usage_short {
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u64 capacity;
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u64 used;
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u64 free;
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u64 nr_inodes;
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};
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struct replicas_delta {
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s64 delta;
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struct bch_replicas_entry r;
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} __packed;
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struct replicas_delta_list {
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unsigned size;
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unsigned used;
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struct {} memset_start;
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u64 nr_inodes;
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u64 persistent_reserved[BCH_REPLICAS_MAX];
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struct {} memset_end;
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struct replicas_delta d[0];
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};
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/*
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* A reservation for space on disk:
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*/
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struct disk_reservation {
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u64 sectors;
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u32 gen;
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unsigned nr_replicas;
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};
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struct copygc_heap_entry {
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u8 gen;
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u32 sectors;
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u64 offset;
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};
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typedef HEAP(struct copygc_heap_entry) copygc_heap;
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#endif /* _BUCKETS_TYPES_H */
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