Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods

Paul E. McKenney
2017-07-12T18:53:27Z

On Wed, Jul 12, 2017 at 07:46:42PM +0200, Peter Zijlstra wrote:
> On Wed, Jul 12, 2017 at 08:56:51AM -0700, Paul E. McKenney wrote:
> > Very good, I have queued the patch below. I left out the removal of
> > the export as I need to work out why the export was there. If it turns
> > out not to be needed, I will remove the related ones as well.
>
> 'git grep rcu_idle_enter' shows no callers other than
> kernel/sched/idle.c. Which seems a clear indication its not needed.
>
> You also have to ask yourself, do I want joe module author to ever call
> this. To which I suspect the answer is: hell no ;-)

The other question is "why did I do this in the first place".

The only case where there will turn out to have been a still-valid reason
is if I remove it without checking first. ;-)

Thanx, Paul