style nits (iovisor#646)

tools/biosnoop.py

@@ -72,7 +72,7 @@
  u64 *tsp, delta;
  u32 *pidp = 0;
  struct val_t *valp;
- struct data_t data ={};
+ struct data_t data = {};
  u64 ts;
 
  // fetch timestamp and calculate delta
@@ -81,14 +81,14 @@
  // missed tracing issue
  return 0;
  }
- ts =  bpf_ktime_get_ns();
+ ts = bpf_ktime_get_ns();
  data.delta = ts - *tsp;
  data.ts = ts / 1000;
 
  valp = infobyreq.lookup(&req);
  if (valp == 0) {
  data.len = req->__data_len;
- strcpy(data.name,"?");
+ strcpy(data.name, "?");
  } else {
  data.pid = valp->pid;
  data.len = req->__data_len;
@@ -99,11 +99,11 @@
  }
 
  if (req->cmd_flags & REQ_WRITE) {
- data.rwflag=1;
+ data.rwflag = 1;
  } else {
- data.rwflag=0;
+ data.rwflag = 0;
  }
- events.perf_submit(ctx,&data,sizeof(data));
+ events.perf_submit(ctx, &data, sizeof(data));
  start.delete(&req);
  infobyreq.delete(&req);
 
@@ -130,6 +130,7 @@ class Data(ct.Structure):
  ("disk_name", ct.c_char * DISK_NAME_LEN),
  ("name", ct.c_char * TASK_COMM_LEN)
  ]
+
 # header
 print("%-14s %-14s %-6s %-7s %-2s %-9s %-7s %7s" % ("TIME(s)", "COMM", "PID",
  "DISK", "T", "SECTOR", "BYTES", "LAT(ms)"))