commit 31cd10414e7ae9b11f46264db14829e1a80a7606
author Brendan Gregg <brendan.d.gregg@gmail.com> Sat Feb 06 17:19:59 2016 -0800
committer Brendan Gregg <brendan.d.gregg@gmail.com> Sat Feb 06 17:19:59 2016 -0800
tree f66cf2036be477d949a6006230a15137f34bce15
parent f6e92c9756c560924de2614efb38f3c42e9a4b9f

simplify

tools/biosnoop.py

diff --git a/tools/biosnoop.py b/tools/biosnoop.py
index 51a8f6a..37ee3f9 100755
--- a/tools/biosnoop.py
+++ b/tools/biosnoop.py
@@ -31,12 +31,10 @@
 // cache PID and comm by-req
 int trace_pid_start(struct pt_regs *ctx, struct request *req)
 {
-    u32 pid;
     struct val_t val = {};
 
-    pid = bpf_get_current_pid_tgid();
     if (bpf_get_current_comm(&val.name, sizeof(val.name)) == 0) {
-        val.pid = pid;
+        val.pid = bpf_get_current_pid_tgid();
         infobyreq.update(&req, &val);
     }