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

[Steven Rostedt]

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)

?

-- Steve
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