67 int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,  in btrfs_find_root()  argument
76 	ret = btrfs_search_slot(NULL, root, search_key, path, 0, 0);  in btrfs_find_root()
122 		      *root, struct btrfs_key *key, struct btrfs_root_item  in btrfs_update_root()
125 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_update_root()
137 	ret = btrfs_search_slot(trans, root, key, path, 0, 1);  in btrfs_update_root()
145 			root->root_key.objectid);  in btrfs_update_root()
163 		ret = btrfs_search_slot(trans, root, key, path,  in btrfs_update_root()
170 		ret = btrfs_del_item(trans, root, path);  in btrfs_update_root()
176 		ret = btrfs_insert_empty_item(trans, root, path,  in btrfs_update_root()
200 int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,  in btrfs_insert_root()  argument
207 	return btrfs_insert_item(trans, root, key, item, sizeof(*item));  in btrfs_insert_root()
216 	struct btrfs_root *root;  in btrfs_find_orphan_roots()  local
257 		root = btrfs_get_fs_root(fs_info, root_objectid, false);  in btrfs_find_orphan_roots()
258 		err = PTR_ERR_OR_ZERO(root);  in btrfs_find_orphan_roots()
284 		WARN_ON(!test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state));  in btrfs_find_orphan_roots()
285 		if (btrfs_root_refs(&root->root_item) == 0) {  in btrfs_find_orphan_roots()
288 			btrfs_disk_key_to_cpu(&drop_key, &root->root_item.drop_progress);  in btrfs_find_orphan_roots()
298 				set_bit(BTRFS_ROOT_UNFINISHED_DROP, &root->state);  in btrfs_find_orphan_roots()
301 			set_bit(BTRFS_ROOT_DEAD_TREE, &root->state);  in btrfs_find_orphan_roots()
302 			btrfs_add_dead_root(root);  in btrfs_find_orphan_roots()
304 		btrfs_put_root(root);  in btrfs_find_orphan_roots()
315 	struct btrfs_root *root = trans->fs_info->tree_root;  in btrfs_del_root()  local
322 	ret = btrfs_search_slot(trans, root, key, path, -1, 1);  in btrfs_del_root()
328 	ret = btrfs_del_item(trans, root, path);  in btrfs_del_root()
474 			     struct btrfs_root *root)  in btrfs_update_root_times()  argument
476 	struct btrfs_root_item *item = &root->root_item;  in btrfs_update_root_times()
480 	spin_lock(&root->root_item_lock);  in btrfs_update_root_times()
484 	spin_unlock(&root->root_item_lock);  in btrfs_update_root_times()
501 int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,  in btrfs_subvolume_reserve_metadata()  argument
508 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_subvolume_reserve_metadata()
514 		ret = btrfs_qgroup_reserve_meta_prealloc(root,  in btrfs_subvolume_reserve_metadata()
531 		btrfs_qgroup_free_meta_prealloc(root, qgroup_num_bytes);  in btrfs_subvolume_reserve_metadata()
541 void btrfs_subvolume_release_metadata(struct btrfs_root *root,  in btrfs_subvolume_release_metadata()  argument
544 	struct btrfs_fs_info *fs_info = root->fs_info;  in btrfs_subvolume_release_metadata()
548 	btrfs_qgroup_convert_reserved_meta(root, qgroup_to_release);  in btrfs_subvolume_release_metadata()