linux-kernel - Re: [PATCH v2 3/8] stop_machine: make cpu_stop_queue_work() and stop_one_cpu

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Date:	Tue, 17 Nov 2015 19:05:32 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Ingo Molnar <mingo@...nel.org>, Milos Vyletel <milos@...hat.com>,
	Prarit Bhargava <prarit@...hat.com>, Tejun Heo <tj@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/8] stop_machine: make cpu_stop_queue_work() and
 stop_one_cpu_nowait() return bool

On Tue, Nov 17, 2015 at 06:05:23PM +0100, Oleg Nesterov wrote:
> On 11/15, Oleg Nesterov wrote:
> >
> > --- a/include/linux/stop_machine.h
> > +++ b/include/linux/stop_machine.h
> > @@ -29,7 +29,7 @@ struct cpu_stop_work {
> >  
> >  int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg);
> >  int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg);
> > -void stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
> > +bool stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
> >  			 struct cpu_stop_work *work_buf);
> 
> Peter, sorry!!!
> 
> I forgot to update the !CONFIG_SMP version of stop_one_cpu_nowait(). Please
> see V2 below.

No problem, updated the patch.
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