+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_REPLICAS_H
#define _BCACHEFS_REPLICAS_H
+#include "eytzinger.h"
#include "replicas_types.h"
-bool bch2_replicas_marked(struct bch_fs *, enum bch_data_type,
- struct bch_devs_list, bool);
-bool bch2_bkey_replicas_marked(struct bch_fs *, enum bkey_type,
- struct bkey_s_c, bool);
-int bch2_mark_replicas(struct bch_fs *, enum bch_data_type,
- struct bch_devs_list);
-int bch2_mark_bkey_replicas(struct bch_fs *, enum bkey_type,
- struct bkey_s_c);
-
+void bch2_replicas_entry_sort(struct bch_replicas_entry *);
+void bch2_replicas_entry_to_text(struct printbuf *,
+ struct bch_replicas_entry *);
void bch2_cpu_replicas_to_text(struct printbuf *, struct bch_replicas_cpu *);
-struct replicas_status {
- struct {
- int redundancy;
- unsigned nr_offline;
- } replicas[BCH_DATA_NR];
+static inline struct bch_replicas_entry *
+cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
+{
+ return (void *) r->entries + r->entry_size * i;
+}
+
+int bch2_replicas_entry_idx(struct bch_fs *,
+ struct bch_replicas_entry *);
+
+void bch2_devlist_to_replicas(struct bch_replicas_entry *,
+ enum bch_data_type,
+ struct bch_devs_list);
+bool bch2_replicas_marked(struct bch_fs *, struct bch_replicas_entry *);
+int bch2_mark_replicas(struct bch_fs *,
+ struct bch_replicas_entry *);
+
+struct replicas_delta {
+ s64 delta;
+ struct bch_replicas_entry r;
+} __packed;
+
+struct replicas_delta_list {
+ unsigned size;
+ unsigned used;
+
+ struct {} memset_start;
+ u64 nr_inodes;
+ u64 persistent_reserved[BCH_REPLICAS_MAX];
+ struct {} memset_end;
+ struct replicas_delta d[0];
};
-struct replicas_status __bch2_replicas_status(struct bch_fs *,
- struct bch_devs_mask);
-struct replicas_status bch2_replicas_status(struct bch_fs *);
-bool bch2_have_enough_devs(struct replicas_status, unsigned);
+static inline struct replicas_delta *
+replicas_delta_next(struct replicas_delta *d)
+{
+ return (void *) d + replicas_entry_bytes(&d->r) + 8;
+}
+
+int bch2_replicas_delta_list_mark(struct bch_fs *, struct replicas_delta_list *);
+
+void bch2_bkey_to_replicas(struct bch_replicas_entry *, struct bkey_s_c);
+
+static inline void bch2_replicas_entry_cached(struct bch_replicas_entry *e,
+ unsigned dev)
+{
+ e->data_type = BCH_DATA_cached;
+ e->nr_devs = 1;
+ e->nr_required = 1;
+ e->devs[0] = dev;
+}
+
+bool bch2_have_enough_devs(struct bch_fs *, struct bch_devs_mask,
+ unsigned, bool);
-int bch2_replicas_online(struct bch_fs *, bool);
unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
int bch2_replicas_gc_end(struct bch_fs *, int);
int bch2_replicas_gc_start(struct bch_fs *, unsigned);
+int bch2_replicas_gc2(struct bch_fs *);
-/* iterate over superblock replicas - used by userspace tools: */
+int bch2_replicas_set_usage(struct bch_fs *,
+ struct bch_replicas_entry *,
+ u64);
-#define replicas_entry_bytes(_i) \
- (offsetof(typeof(*(_i)), devs) + (_i)->nr_devs)
+#define for_each_cpu_replicas_entry(_r, _i) \
+ for (_i = (_r)->entries; \
+ (void *) (_i) < (void *) (_r)->entries + (_r)->nr * (_r)->entry_size;\
+ _i = (void *) (_i) + (_r)->entry_size)
+
+/* iterate over superblock replicas - used by userspace tools: */
#define replicas_entry_next(_i) \
((typeof(_i)) ((void *) (_i) + replicas_entry_bytes(_i)))
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
+void bch2_fs_replicas_exit(struct bch_fs *);
+int bch2_fs_replicas_init(struct bch_fs *);
+
#endif /* _BCACHEFS_REPLICAS_H */