mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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12bf93a429
This patch improves the superblock .to_text() methods and adds methods for all types that were missing them. It also improves printbufs by allowing them to specfiy what units we want to be printing in, and adds new wrapper methods for unifying our kernel and userspace environments. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
106 lines
3.1 KiB
C
106 lines
3.1 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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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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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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