xlog_assign_lsn
xlog_assign_lsn(log->l_curr_cycle, log->l_curr_block));
atomic64_set(lsn, xlog_assign_lsn(cycle, block));
recp->h_lsn = cpu_to_be64(xlog_assign_lsn(cycle, block));
recp->h_tail_lsn = cpu_to_be64(xlog_assign_lsn(tail_cycle, tail_block));
last_lsn = xlog_assign_lsn(log->l_curr_cycle, log->l_curr_block);
target_lsn = xlog_assign_lsn(target_cycle, target_block);