1 /* SPDX-License-Identifier: GPL-2.0 */
2 
3 #ifndef BTRFS_ROOT_TREE_H
4 #define BTRFS_ROOT_TREE_H
5 
6 #include <linux/types.h>
7 
8 struct fscrypt_str;
9 struct extent_buffer;
10 struct btrfs_key;
11 struct btrfs_root;
12 struct btrfs_root_item;
13 struct btrfs_path;
14 struct btrfs_fs_info;
15 struct btrfs_block_rsv;
16 struct btrfs_trans_handle;
17 
18 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
19 				     struct btrfs_block_rsv *rsv,
20 				     int nitems, bool use_global_rsv);
21 int btrfs_add_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
22 		       u64 ref_id, u64 dirid, u64 sequence,
23 		       const struct fscrypt_str *name);
24 int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
25 		       u64 ref_id, u64 dirid, u64 *sequence,
26 		       const struct fscrypt_str *name);
27 int btrfs_del_root(struct btrfs_trans_handle *trans, const struct btrfs_key *key);
28 int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
29 		      const struct btrfs_key *key,
30 		      struct btrfs_root_item *item);
31 int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
32 		      struct btrfs_key *key, struct btrfs_root_item *item);
33 int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,
34 		    struct btrfs_path *path, struct btrfs_root_item *root_item,
35 		    struct btrfs_key *root_key);
36 int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
37 void btrfs_set_root_node(struct btrfs_root_item *item,
38 			 struct extent_buffer *node);
39 void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
40 void btrfs_update_root_times(struct btrfs_trans_handle *trans, struct btrfs_root *root);
41 
42 #endif
43