Re: [tip: locking/core] futex: Split out requeue

From: Peter Zijlstra
Date: Fri Oct 15 2021 - 06:03:06 EST


On Wed, Oct 13, 2021 at 06:57:15PM +0200, Mike Galbraith wrote:
> On Sat, 2021-10-09 at 10:07 +0000, tip-bot2 for Peter Zijlstra wrote:
> >
> > diff --git a/kernel/futex/futex.h b/kernel/futex/futex.h
> > index 4969e96..840302a 100644
> > --- a/kernel/futex/futex.h
> > +++ b/kernel/futex/futex.h
> > @@ -3,6 +3,8 @@
> >  #define _FUTEX_H
> >  
> >  #include <linux/futex.h>
> > +#include <linux/sched/wake_q.h>
>
> +#ifdef CONFIG_PREEMPT_RT
> +#include <linux/rcuwait.h>
> +#endif
>
> ?
>
> I needed that for tip-rt to build. It also boots, and futextests are
> happy (whew, futexes hard).

Hmm indeed, I wonder how that happened... anyway, lemme add a patch to
cure that.