Re: [PATCH 1/2] workqueue: Use normal rcu

Sebastian Andrzej Siewior
2019-03-21T20:59:43Z

On 2019-03-13 17:55:47 [+0100], To linux-kernel@vger.kernel.org wrote:
> From: Thomas Gleixner <tglx@linutronix.de>
>
> There is no need for sched_rcu. The undocumented reason why sched_rcu
> is used is to avoid a few explicit rcu_read_lock()/unlock() pairs by
> the fact that sched_rcu reader side critical sections are also protected
> by preempt or irq disabled regions.
>
> Replace rcu_read_lock_sched with rcu_read_lock and acquire the RCU lock
> where it is not yet explicit acquired. Replace local_irq_disable() with
> rcu_read_lock(). Update asserts.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> [bigeasy: mangle changelog a little]
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

A gentle ping.

Sebastian