Re: [PATCH 2/2] x86/mm/kmmio: Remove rcu_read_lock()

[Steven Rostedt]

On Fri, 9 Dec 2022 13:03:34 -0500
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Wed, 7 Dec 2022 09:36:21 -0800
> "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote:
> 
> > > Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
> > > Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>    
> > 
> > Might be worth adding a comment saying that others are using this
> > preempt_disable() to block an RCU grace period, but that is up to
> > you guys.  I will let you and your future selves be the judges.  
> 
> Good point. I'll add a comment in v2.

Actually, rcu_read_lock_sched_notrace() may work instead. Let me test it.

-- Steve