taglinefilesource code
send_head1857net/inet/ip.cif (sk->send_head == NULL) 
send_head1860net/inet/ip.csk->send_head = skb;
send_head1922net/inet/ip.cskb = sk->send_head;
send_head498net/inet/ipx.csk->send_head=NULL;
send_head349net/inet/sock.cfor(skb = sk->send_head; skb != NULL; )
send_head367net/inet/sock.csk->send_head = NULL;
send_head852net/inet/sock.csk->send_head = NULL;
send_head92net/inet/sock.hstruct sk_buff    * volatile send_head;
send_head603net/inet/tcp.csk->send_head == NULL &&
send_head724net/inet/tcp.cif (sk->send_head == NULL && skb_peek(&sk->write_queue) == NULL
send_head1739net/inet/tcp.cnewsk->send_head = NULL;
send_head2100net/inet/tcp.cfor (skb = sk->send_head; skb != NULL; skb = skb2) {
send_head2118net/inet/tcp.csk->send_head = list;
send_head2178net/inet/tcp.cskb2 = sk->send_head;
send_head2179net/inet/tcp.csk->send_head = NULL;
send_head2203net/inet/tcp.cif (sk->send_head == NULL) {
send_head2204net/inet/tcp.csk->send_head = skb;
send_head2216net/inet/tcp.cif (sk->send_tail == NULL || sk->send_head == NULL) {
send_head2217net/inet/tcp.csk->send_head = NULL;
send_head2274net/inet/tcp.cwhile(sk->send_head != NULL) {
send_head2276net/inet/tcp.cif (sk->send_head->link3 &&
send_head2277net/inet/tcp.cafter(sk->send_head->h.seq, sk->send_head->link3->h.seq)) {
send_head2282net/inet/tcp.cif (before(sk->send_head->h.seq, ack+1)) {
send_head2298net/inet/tcp.cif (sk->send_head->link3)
send_head2320net/inet/tcp.csk->send_head, sk->send_head->h.seq, ack));
send_head2325net/inet/tcp.coskb = sk->send_head;
send_head2358net/inet/tcp.coskb = sk->send_head;
send_head2360net/inet/tcp.csk->send_head = oskb->link3;
send_head2361net/inet/tcp.cif (sk->send_head == NULL) {
send_head2389net/inet/tcp.csk->send_head == NULL &&
send_head2395net/inet/tcp.cif (sk->send_head == NULL && sk->ack_backlog == 0 &&
send_head2415net/inet/tcp.cskb_peek(&sk->write_queue) == NULL && sk->send_head == NULL) {
send_head2476net/inet/tcp.cif (((!flag) || (flag&4)) && sk->send_head != NULL &&
send_head2478net/inet/tcp.c(sk->send_head->when + sk->rto < jiffies))) {
send_head108net/inet/timer.csk->send_head == NULL &&
send_head173net/inet/timer.cskb = sk->send_head;