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