Re: [RFC][PATCH 09/11] sched, x86: Kill saved_preempt_count

[Peter Zijlstra]

On Tue, Sep 29, 2015 at 11:44:04AM -0400, Steven Rostedt wrote:
> On Tue, 29 Sep 2015 11:28:34 +0200
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> > With the introduction of the context switch preempt_count invariant,
> > and the demise of PREEMPT_ACTIVE, its pointless to save/restore the
> > per-cpu preemption count, it must always be 2.
> > 
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> 
> Should we add a warn on someplace:
> 
>  WARN_ON_ONCE(preempt_count() != 2)

See v2 12/11 :-)
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