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d5bd37872a
Validation was completely missing for replicas entries in the journal (not the superblock replicas section) - we can't have replicas entries pointing to invalid devices. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
94 lines
2.9 KiB
C
94 lines
2.9 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 "bkey.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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int bch2_replicas_entry_validate(struct bch_replicas_entry *,
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struct bch_sb *, struct printbuf *);
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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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static inline struct replicas_delta *
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replicas_delta_next(struct replicas_delta *d)
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{
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return (void *) d + replicas_entry_bytes(&d->r) + 8;
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}
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int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
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void bch2_bkey_to_replicas(struct bch_replicas_entry *, 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_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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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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void bch2_fs_replicas_exit(struct bch_fs *);
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int bch2_fs_replicas_init(struct bch_fs *);
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#endif /* _BCACHEFS_REPLICAS_H */
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