sysctl_tcp_probe_interval 123 include/net/netns/ipv4.h u32 sysctl_tcp_probe_interval; sysctl_tcp_probe_interval 840 net/ipv4/sysctl_net_ipv4.c .data = &init_net.ipv4.sysctl_tcp_probe_interval, sysctl_tcp_probe_interval 2663 net/ipv4/tcp_ipv4.c net->ipv4.sysctl_tcp_probe_interval = TCP_PROBE_INTERVAL; sysctl_tcp_probe_interval 2049 net/ipv4/tcp_output.c interval = net->ipv4.sysctl_tcp_probe_interval;