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Date: Mon, 24 Jun 2013 00:26:38 +0530
From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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To: Matt Turner <mattst88@gmail.com>
CC: tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, oleg@redhat.com,
        paulmck@linux.vnet.ibm.com, rusty@rustcorp.com.au, mingo@kernel.org,
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        Richard Henderson <rth@twiddle.net>,
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Subject: Re: [PATCH 31/45] alpha/smp: Use get/put_online_cpus_atomic() to
 prevent CPU offline
References: <20130623133642.19094.16038.stgit@srivatsabhat.in.ibm.com> <20130623134516.19094.57189.stgit@srivatsabhat.in.ibm.com> <CAEdQ38HLzNoRABCUR7tEoBLJWn86xSd2VfSHxs0MPj5r5GvTXQ@mail.gmail.com>
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On 06/23/2013 11:20 PM, Matt Turner wrote:
> On Sun, Jun 23, 2013 at 6:45 AM, Srivatsa S. Bhat
> <srivatsa.bhat@linux.vnet.ibm.com> wrote:
>> Once stop_machine() is gone from the CPU offline path, we won't be able
>> to depend on disabling preemption to prevent CPUs from going offline
>> from under us.
>>
>> Use the get/put_online_cpus_atomic() APIs to prevent CPUs from going
>> offline, while invoking from atomic context.
>>
>> Also, remove the non-ASCII character present in this file!
> 
> It's not non-ASCII. It's a page break.
> 

Oh, ok..

Regards,
Srivatsa S. Bhat