drop unused pid, and improve code-path check

tkuburic · Feb 20, 2016 · 4db6d44 · 4db6d44
1 parent 2482c1c
commit 4db6d44
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/tools/tcpconnlat.py b/tools/tcpconnlat.py
@@ -97,7 +97,9 @@
 // This should all be switched to static tracepoints when available.
 int trace_tcp_rcv_state_process(struct pt_regs *ctx, struct sock *sk)
 {
- u32 pid = bpf_get_current_pid_tgid();
+ // will be in TCP_SYN_SENT for handshake
+ if (sk->__sk_common.skc_state != TCP_SYN_SENT)
+ return 0;
 
  // check start and calculate delta
  struct info_t *infop = start.lookup(&sk);