linux-kernel - Re: [PATCH RFC rcu/x86] Provide early rcu_cpu

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Message-Id: <20180525194441.GE3803@linux.vnet.ibm.com>
Date:   Fri, 25 May 2018 12:44:41 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
        hpa@...or.com, josh@...htriplett.org,
        mathieu.desnoyers@...icios.com, jiangshanlai@...il.com,
        peterz@...radead.org, bigeasy@...utronix.de,
        qianyue.zj@...baba-inc.com, efault@....de
Subject: Re: [PATCH RFC rcu/x86] Provide early rcu_cpu_starting() callback

On Fri, May 25, 2018 at 03:19:33PM -0400, Steven Rostedt wrote:
> On Fri, 25 May 2018 12:18:02 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > [ paulmck: Add !SMP support, per 0day Test Robot report. ]
> 
> Somehow I read this as:
> 
>   [ paulmck: Add NR_CPUS=0 support ]
> 
> no idea why.

;-) ;-) ;-)

Well, there is a debate on out-of-thin-air (OOTA) values in the C11 and
C++11 memory models.  Maybe that is related?  ;-)

							Thanx, Paul