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_invalid(struct bch_fs *, struct bkey_s_c,
14 enum bch_validate_flags, struct printbuf *);
15 void bch2_subvolume_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
16 int bch2_subvolume_trigger(struct btree_trans *, enum btree_id, unsigned,
17 struct bkey_s_c, struct bkey_s,
18 enum btree_iter_update_trigger_flags);
19
20 #define bch2_bkey_ops_subvolume ((struct bkey_ops) { \
21 .key_invalid = bch2_subvolume_invalid, \
22 .val_to_text = bch2_subvolume_to_text, \
23 .trigger = bch2_subvolume_trigger, \
24 .min_val_size = 16, \
25 })
26
27 int bch2_subvol_has_children(struct btree_trans *, u32);
28 int bch2_subvolume_get(struct btree_trans *, unsigned,
29 bool, int, struct bch_subvolume *);
30 int bch2_subvolume_get_snapshot(struct btree_trans *, u32, u32 *);
31
32 int bch2_subvol_is_ro_trans(struct btree_trans *, u32);
33 int bch2_subvol_is_ro(struct bch_fs *, u32);
34
35 int bch2_delete_dead_snapshots(struct bch_fs *);
36 void bch2_delete_dead_snapshots_async(struct bch_fs *);
37
38 int bch2_subvolume_unlink(struct btree_trans *, u32);
39 int bch2_subvolume_create(struct btree_trans *, u64, u32, u32, u32 *, u32 *, bool);
40
41 int bch2_initialize_subvolumes(struct bch_fs *);
42 int bch2_fs_upgrade_for_subvolumes(struct bch_fs *);
43
44 int bch2_fs_subvolumes_init(struct bch_fs *);
45
46 #endif /* _BCACHEFS_SUBVOLUME_H */
47
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