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91 lines
3.0 KiB
C
91 lines
3.0 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 "btree/bkey.h"
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#include "alloc/replicas_types.h"
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#include "util/eytzinger.h"
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void bch2_replicas_entry_sort(struct bch_replicas_entry_v1 *);
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void bch2_replicas_entry_to_text(struct printbuf *,
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struct bch_replicas_entry_v1 *);
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int bch2_replicas_entry_validate(struct bch_replicas_entry_v1 *,
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struct bch_fs *, struct printbuf *);
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void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
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void bch2_devlist_to_replicas(struct bch_replicas_entry_v1 *,
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enum bch_data_type,
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struct bch_devs_list);
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bool bch2_replicas_marked_locked(struct bch_fs *,
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struct bch_replicas_entry_v1 *);
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bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry_v1 *);
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int bch2_mark_replicas(struct bch_fs *,
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struct bch_replicas_entry_v1 *);
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void bch2_bkey_to_replicas(const struct bch_fs *, struct bch_replicas_entry_v1 *, struct bkey_s_c);
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static inline void bch2_replicas_entry_cached(struct bch_replicas_entry_v1 *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_can_read_fs_with_devs(struct bch_fs *, struct bch_devs_mask,
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unsigned, struct printbuf *);
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bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
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unsigned, struct printbuf *, bool);
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bool bch2_sb_has_journal(struct bch_sb *);
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unsigned bch2_sb_dev_has_data(struct bch_sb *, unsigned);
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unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
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void bch2_replicas_entry_put_many(struct bch_fs *, struct bch_replicas_entry_v1 *, unsigned);
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static inline void bch2_replicas_entry_put(struct bch_fs *c, struct bch_replicas_entry_v1 *r)
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{
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bch2_replicas_entry_put_many(c, r, 1);
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}
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int bch2_replicas_entry_get(struct bch_fs *, struct bch_replicas_entry_v1 *);
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void bch2_replicas_entry_kill(struct bch_fs *, struct bch_replicas_entry_v1 *);
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int bch2_replicas_gc_reffed(struct bch_fs *);
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static inline bool bch2_replicas_entry_has_dev(struct bch_replicas_entry_v1 *r, unsigned dev)
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{
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for (unsigned i = 0; i < r->nr_devs; i++)
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if (r->devs[i] == dev)
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return true;
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return false;
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}
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static inline bool bch2_replicas_entry_eq(struct bch_replicas_entry_v1 *l,
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struct bch_replicas_entry_v1 *r)
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{
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return l->nr_devs == r->nr_devs && !memcmp(l, r, replicas_entry_bytes(l));
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}
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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 (typeof(&(_r)->entries[0]) _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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void bch2_verify_replicas_refs_clean(struct bch_fs *);
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void bch2_fs_replicas_exit(struct bch_fs *);
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#endif /* _BCACHEFS_REPLICAS_H */
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