Re: [PATCH v1] kthread/smpboot: Serialize kthread parking against wakeup

[Peter Zijlstra]

On Wed, Jun 06, 2018 at 03:51:16PM +0200, Oleg Nesterov wrote:
> And I really think we should unexport kthread_park/unpark(), only smpboot_thread_fn()
> should use them. kthread() should not play with __kthread_parkme(). And even
> KTHREAD_SHOULD_PARK must die, I mean it should live in struct smp_hotplug_thread,
> not in struct kthread.

I tend to agree; however we need to fix drm and md first, because they
already use them :-(