1804 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1809 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1810 	read_lock(&em_tree->lock);  in find_next_chunk()
1811 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1816 	read_unlock(&em_tree->lock);  in find_next_chunk()
3068 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
3071 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
3072 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
3073 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
3074 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
5411 	struct extent_map_tree *em_tree;  in create_chunk()  local
5454 	em_tree = &info->mapping_tree;  in create_chunk()
5455 	write_lock(&em_tree->lock);  in create_chunk()
5456 	ret = add_extent_mapping(em_tree, em, 0);  in create_chunk()
5458 		write_unlock(&em_tree->lock);  in create_chunk()
5462 	write_unlock(&em_tree->lock);  in create_chunk()
5488 	write_lock(&em_tree->lock);  in create_chunk()
5489 	remove_extent_mapping(em_tree, em);  in create_chunk()
5490 	write_unlock(&em_tree->lock);  in create_chunk()
8160 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
8169 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
8170 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
8171 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
8261 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
8266 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
8267 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
8280 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()