1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_SUBVOLUME_H
3 #define _BCACHEFS_SUBVOLUME_H
4
5 #include "darray.h"
6 #include "subvolume_types.h"
7
8 enum bch_validate_flags;
9
10 int bch2_check_subvols(struct bch_fs *);
11 int bch2_check_subvol_children(struct bch_fs *);
12
13 int bch2_subvolume_validate(struct bch_fs *, struct bkey_s_c, enum bch_validate_flags);
14 void bch2_subvolume_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
15 int bch2_subvolume_trigger(struct btree_trans *, enum btree_id, unsigned,
16 struct bkey_s_c, struct bkey_s,
17 enum btree_iter_update_trigger_flags);
18
19 #define bch2_bkey_ops_subvolume ((struct bkey_ops) { \
20 .key_validate = bch2_subvolume_validate, \
21 .val_to_text = bch2_subvolume_to_text, \
22 .trigger = bch2_subvolume_trigger, \
23 .min_val_size = 16, \
24 })
25
26 int bch2_subvol_has_children(struct btree_trans *, u32);
27 int bch2_subvolume_get(struct btree_trans *, unsigned,
28 bool, int, struct bch_subvolume *);
29 int bch2_subvolume_get_snapshot(struct btree_trans *, u32, u32 *);
30
31 int bch2_subvol_is_ro_trans(struct btree_trans *, u32);
32 int bch2_subvol_is_ro(struct bch_fs *, u32);
33
34 int bch2_delete_dead_snapshots(struct bch_fs *);
35 void bch2_delete_dead_snapshots_async(struct bch_fs *);
36
37 int bch2_subvolume_unlink(struct btree_trans *, u32);
38 int bch2_subvolume_create(struct btree_trans *, u64, u32, u32, u32 *, u32 *, bool);
39
40 int bch2_initialize_subvolumes(struct bch_fs *);
41 int bch2_fs_upgrade_for_subvolumes(struct bch_fs *);
42
43 int bch2_fs_subvolumes_init(struct bch_fs *);
44
45 #endif /* _BCACHEFS_SUBVOLUME_H */
46
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