Merge tag 'trace-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Seems that Peter Zijlstra added a new check that is making old code
  scream nasty warnings:

    WARNING: CPU: 0 PID: 91 at kernel/sched/core.c:7253 __might_sleep+0x9a/0x378()
    do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8d79b511>] event_test_thread+0x48/0x93
    Call Trace:
      __might_sleep+0x9a/0x378
      down_read+0x26/0x98
      exit_signals+0x27/0x1c2
      do_exit+0x193/0x10bd
      kthread+0x156/0x156
      ret_from_fork+0x7a/0xb0

  These are triggered by some self tests that run at start up when
  configure in.  Although the code is technically correct, they are a
  little sloppy and not very robust.  They work now because it runs at
  boot up and the tests do not call anything that might trigger a
  spurious wake up.  But that doesn't mean those tests wont change in
  the future.

  It's best to clean them now to make sure the tests used to test the
  internal workings of the system don't cause breakage themselves.

  This also quiets the warnings made by the new checks"

* tag 'trace-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Clean up scheduling in trace_wakeup_test_thread()
  tracing: Robustify wait loop

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