sysctl_tcp_sack 139 include/net/netns/ipv4.h int sysctl_tcp_sack; sysctl_tcp_sack 251 net/ipv4/syncookies.c if (tcp_opt->sack_ok && !net->ipv4.sysctl_tcp_sack) sysctl_tcp_sack 1063 net/ipv4/sysctl_net_ipv4.c .data = &init_net.ipv4.sysctl_tcp_sack, sysctl_tcp_sack 3907 net/ipv4/tcp_input.c !estab && net->ipv4.sysctl_tcp_sack) { sysctl_tcp_sack 2686 net/ipv4/tcp_ipv4.c net->ipv4.sysctl_tcp_sack = 1; sysctl_tcp_sack 633 net/ipv4/tcp_output.c if (likely(sock_net(sk)->ipv4.sysctl_tcp_sack)) {