linux-kernel - Re: [PATCH tip/core/rcu 3/3] srcu: Make early-boot call

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Date:   Thu, 30 Aug 2018 17:09:52 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com,
        oleg@...hat.com, joel@...lfernandes.org, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH tip/core/rcu 3/3] srcu: Make early-boot call_srcu() reuse
 workqueue lists

On Thu, Aug 30, 2018 at 07:53:22PM -0400, Steven Rostedt wrote:
> On Thu, 30 Aug 2018 16:12:11 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> 
> > > > -	WARN_ON_ONCE(rcu_scheduler_active == RCU_SCHEDULER_INIT);  
> > > 
> > > Well it boots without warning ;-)
> > > 
> > > Tested-by: Steven Rostedt (VMware) <rostedt@...dmis.org>  
> > 
> > Thank you again!  I applied this to 1/3 and 3/3 on the assumption that
> > you did not run rcutorture.  ;-)
> 
> No rcutorture. Just reverted the tracepoint SRCU delay patch and it
> boots with the trace event enabled.

Very good, then I did get it right.  1/3 and 3/3, but not 2/3.

							Thanx, Paul