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Date: Mon, 21 Mar 2016 15:42:55 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] sched: Add preempt checks in preempt_schedule() code
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On Mon, Mar 21, 2016 at 10:35:07AM -0400, Steven Rostedt wrote:
> On Mon, 21 Mar 2016 15:11:45 +0100
> Peter Zijlstra <peterz@infradead.org> wrote:
> 
> > So the problem with preempt_enable_trace() is that we just called a
> > _notrace(), and while I now know these are two different trace thingies,
> > I might have forgotten that in a few days.
> > 
> 
> What about preempt_latency_start() for the disable, and
> preempt_latency_stop() for the enable? Make it more like a stop watch?

ok that works.