1 /* SPDX-License-Identifier: GPL-2.0 */
3 #ifndef BTRFS_ROOT_TREE_H
4 #define BTRFS_ROOT_TREE_H
6 #include <linux/types.h>
12 struct btrfs_root_item;
15 struct btrfs_block_rsv;
16 struct btrfs_trans_handle;
18 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
19 struct btrfs_block_rsv *rsv,
20 int nitems, bool use_global_rsv);
21 void btrfs_subvolume_release_metadata(struct btrfs_root *root,
22 struct btrfs_block_rsv *rsv);
23 int btrfs_add_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
24 u64 ref_id, u64 dirid, u64 sequence,
25 const struct fscrypt_str *name);
26 int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
27 u64 ref_id, u64 dirid, u64 *sequence,
28 const struct fscrypt_str *name);
29 int btrfs_del_root(struct btrfs_trans_handle *trans, const struct btrfs_key *key);
30 int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
31 const struct btrfs_key *key,
32 struct btrfs_root_item *item);
33 int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
34 struct btrfs_key *key, struct btrfs_root_item *item);
35 int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,
36 struct btrfs_path *path, struct btrfs_root_item *root_item,
37 struct btrfs_key *root_key);
38 int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
39 void btrfs_set_root_node(struct btrfs_root_item *item,
40 struct extent_buffer *node);
41 void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
42 void btrfs_update_root_times(struct btrfs_trans_handle *trans, struct btrfs_root *root);