From: Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH 08/26] exit: Make the runqueue rcu safe
Date: Wed, 7 Jun 2017 15:16:50 +0200
Message-ID: <20170607131650.GA23434@redhat.com>
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On 06/06, Eric W. Biederman wrote:
>
> Add a rcu_usage to task_struct and use it to reuse the delayed rcu put
> logic from release_task in finish_task_switch.

I didn't really read this patch yet, but it first glance it should work and
you can also remove the ->exit_state check/limitation in rcuwait_wait_event().

Oleg.