tcp_probe.tail = (tcp_probe.tail + 1) % bufsize;
spin_unlock_bh(&tcp_probe.lock);
/* if record greater than space available
return partial buffer (so far) */
tcp_probe.tail = (tcp_probe.tail + 1) % bufsize;
spin_unlock_bh(&tcp_probe.lock);
/* if record greater than space available
return partial buffer (so far) */