Re: [PATCH -tip 04/32] sched: Core-wide rq->lock

[Balbir Singh]

On Tue, Nov 17, 2020 at 06:19:34PM -0500, Joel Fernandes (Google) wrote:
> From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> 
> Introduce the basic infrastructure to have a core wide rq->lock.
>

Reading through the patch, it seems like all the CPUs have to be
running with sched core enabled/disabled? Is it possible to have some
cores with core sched disabled? I don't see a strong use case for it,
but I am wondering if the design will fall apart if that assumption is
broken?

Balbir Singh