diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 22ee3d7..470d782 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -217,6 +217,20 @@ static void tcp_newreno_partial_ack(struct tcpcb *, struct tcphdr *); static void inline tcp_congestion_exp(struct tcpcb *); +/* + * Kernel module interface for updating tcpstat. The argument is an index + * into tcpstat treated as an array of u_long. While this encodes the + * general layout of tcpstat into the caller, it doesn't encode its location, + * so that future changes to add, for example, per-CPU stats support won't + * cause binary compatibility problems for kernel modules. + */ +void +kmod_tcpstat_inc(int statnum) +{ + + (*((u_long *)&V_tcpstat + statnum))++; +} + static void inline tcp_congestion_exp(struct tcpcb *tp) { |
