1783 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1788 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1789 	read_lock(&em_tree->lock);  in find_next_chunk()
1790 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1795 	read_unlock(&em_tree->lock);  in find_next_chunk()
2951 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
2954 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
2955 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
2956 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
2957 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
5121 	struct extent_map_tree *em_tree;  in create_chunk()  local
5163 	em_tree = &info->mapping_tree;  in create_chunk()
5164 	write_lock(&em_tree->lock);  in create_chunk()
5165 	ret = add_extent_mapping(em_tree, em, 0);  in create_chunk()
5167 		write_unlock(&em_tree->lock);  in create_chunk()
5171 	write_unlock(&em_tree->lock);  in create_chunk()
5197 	write_lock(&em_tree->lock);  in create_chunk()
5198 	remove_extent_mapping(em_tree, em);  in create_chunk()
5199 	write_unlock(&em_tree->lock);  in create_chunk()
7592 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
7601 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
7602 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
7603 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
7684 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
7689 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
7690 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
7703 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()