On Tue, May 13, 2014 at 09:22:08AM +0200, Ingo Molnar wrote:
> 
> * Peter Zijlstra <peterz@infradead.org> wrote:
> 
> > trace_sched_wakeup(.success) is a dead argument and has been for ages,
> 
> Always 0, or random value?

always true, we couldn't remove it because it would break userspace :-(