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fcb3431be8
When the replicas mechanism was added, for tracking data by which drives it's replicated on, the check for whether we have sufficient devices was never updated to make use of it. This patch finally does that. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_REPLICAS_H
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#define _BCACHEFS_REPLICAS_H
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#include "eytzinger.h"
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#include "replicas_types.h"
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void bch2_replicas_entry_sort(struct bch_replicas_entry *);
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void bch2_replicas_entry_to_text(struct printbuf *,
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struct bch_replicas_entry *);
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void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
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static inline struct bch_replicas_entry *
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cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
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{
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return (void *) r->entries + r->entry_size * i;
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}
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int bch2_replicas_entry_idx(struct bch_fs *,
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struct bch_replicas_entry *);
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void bch2_devlist_to_replicas(struct bch_replicas_entry *,
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enum bch_data_type,
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struct bch_devs_list);
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bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
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int bch2_mark_replicas(struct bch_fs *,
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struct bch_replicas_entry *);
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void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
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bool bch2_bkey_replicas_marked(struct bch_fs *, struct bkey_s_c);
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int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
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static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
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unsigned dev)
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{
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e->data_type = BCH_DATA_cached;
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e->nr_devs = 1;
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e->nr_required = 1;
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e->devs[0] = dev;
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}
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bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
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unsigned, bool);
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unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
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int bch2_replicas_gc_end(struct bch_fs *, int);
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int bch2_replicas_gc_start(struct bch_fs *, unsigned);
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int bch2_replicas_gc2(struct bch_fs *);
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int bch2_replicas_set_usage(struct bch_fs *,
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struct bch_replicas_entry *,
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u64);
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#define for_each_cpu_replicas_entry(_r, _i) \
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for (_i = (_r)->entries; \
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(void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
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_i = (void *) (_i) + (_r)->entry_size)
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/* iterate over superblock replicas - used by userspace tools: */
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#define replicas_entry_next(_i) \
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((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
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#define for_each_replicas_entry(_r, _i) \
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for (_i = (_r)->entries; \
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(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
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(_i) = replicas_entry_next(_i))
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#define for_each_replicas_entry_v0(_r, _i) \
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for (_i = (_r)->entries; \
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(void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
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(_i) = replicas_entry_next(_i))
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int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *);
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extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
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extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
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int bch2_fs_replicas_init(struct bch_fs *);
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#endif /* _BCACHEFS_REPLICAS_H */
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