330 	struct bow_range *first_br, *free_br;  in backup_log_sector()  local
347 	free_br = find_free_range(bc);  in backup_log_sector()
349 	if (!free_br)  in backup_log_sector()
351 	bi_iter.bi_sector = free_br->sector;  in backup_log_sector()
353 	ret = split_range(bc, &free_br, &bi_iter);  in backup_log_sector()
361 	ret = copy_data(bc, first_br, free_br, &checksum);  in backup_log_sector()
367 	ret = add_log_entry(bc, first_br->sector, free_br->sector,  in backup_log_sector()
372 	set_type(bc, &free_br, BACKUP);  in backup_log_sector()
413 	struct bow_range *free_br, *first_br;  in prepare_log()  local
441 	free_br = find_free_range(bc);  in prepare_log()
442 	if (!free_br)  in prepare_log()
444 	bi_iter.bi_sector = free_br->sector;  in prepare_log()
446 	ret = split_range(bc, &free_br, &bi_iter);  in prepare_log()
449 	free_br->type = SECTOR0_CURRENT;  in prepare_log()
452 	ret = copy_data(bc, first_br, free_br, NULL);  in prepare_log()
456 	bc->log_sector->sector0 = free_br->sector;  in prepare_log()
459 	free_br = find_free_range(bc);  in prepare_log()
460 	if (!free_br)  in prepare_log()
462 	bi_iter.bi_sector = free_br->sector;  in prepare_log()
464 	ret = split_range(bc, &free_br, &bi_iter);  in prepare_log()
469 	ret = copy_data(bc, first_br, free_br, &checksum);  in prepare_log()
485 	ret = add_log_entry(bc, first_br->sector, free_br->sector,  in prepare_log()
490 	set_type(bc, &free_br, BACKUP);  in prepare_log()