mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
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26609b619f
this lets us get rid of a lot of extra switch statements - in a lot of places we dispatch on the btree node type, and then the key type, so this is a nice cleanup across a lot of code. Also improve the on disk format versioning stuff. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
59 lines
1.9 KiB
C
59 lines
1.9 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 "replicas_types.h"
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bool bch2_replicas_marked(struct bch_fs *, enum bch_data_type,
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struct bch_devs_list, bool);
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bool bch2_bkey_replicas_marked(struct bch_fs *,
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struct bkey_s_c, bool);
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int bch2_mark_replicas(struct bch_fs *, enum bch_data_type,
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struct bch_devs_list);
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int bch2_mark_bkey_replicas(struct bch_fs *, struct bkey_s_c);
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void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
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struct replicas_status {
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struct {
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int redundancy;
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unsigned nr_offline;
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} replicas[BCH_DATA_NR];
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};
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struct replicas_status __bch2_replicas_status(struct bch_fs *,
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struct bch_devs_mask);
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struct replicas_status bch2_replicas_status(struct bch_fs *);
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bool bch2_have_enough_devs(struct replicas_status, unsigned);
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int bch2_replicas_online(struct bch_fs *, 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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/* iterate over superblock replicas - used by userspace tools: */
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#define replicas_entry_bytes(_i) \
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(offsetof(typeof(*(_i)), devs) + (_i)->nr_devs)
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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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#endif /* _BCACHEFS_REPLICAS_H */
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