Re: [tip:perf/core] tracing: Only trace sched_wakeup if itactually work something up

[Peter Zijlstra]

On Wed, 2010-12-22 at 13:16 +0000, tip-bot for Steven Rostedt wrote:
> Commit-ID:  14bc7a06c6175cfa8070a5f5022210b648c3e0a7
> Gitweb:     http://git.kernel.org/tip/14bc7a06c6175cfa8070a5f5022210b648c3e0a7
> Author:     Steven Rostedt <srostedt@xxxxxxxxxx>
> AuthorDate: Thu, 2 Dec 2010 16:56:14 -0500
> Committer:  Steven Rostedt <rostedt@xxxxxxxxxxx>
> CommitDate: Fri, 3 Dec 2010 10:46:59 -0500
> 
> tracing: Only trace sched_wakeup if it actually work something up
> 
> Currently the tracepoint sched_wakeup traces the wakeup event even
> if the wakeup failed to wake anything up. This is quite stupid
> but it happens because we did not want to add a conditional
> to the core kernel code that would just slow down the wakeup events.
> 
> This patch changes the wakeup tracepoints to use the
> 
>  DEFINE_EVENT_CONDITIONAL()
> 
> to test the "success" parameter and will only trace the event if
> the wakeup was successfull.
> 
> The success field in the tracepoint is removed since it is no
> longer needed.

I NAKed this, its stupid.
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