taglinefilesource code
when46include/linux/skbuff.hvolatile unsigned long  when;  /* used to compute rtt's  */
when1787net/inet/ip.cskb->when = jiffies;
when1955net/inet/ip.cskb->when = jiffies;
when514net/inet/skbuff.cn->when=skb->when;
when2494net/inet/tcp.cm = jiffies - oskb->when;  /* RTT */
when2635net/inet/tcp.c(sk->send_head->when + sk->rto < jiffies))) {
when177net/inet/timer.cif (jiffies < skb->when + sk->rto) {
when178net/inet/timer.creset_timer (sk, TIME_WRITE, skb->when + sk->rto - jiffies);