From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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,
akpm@linux-foundation.org, namhyung@kernel.org,
walken@google.com, vincent.guittot@linaro.org,
laijs@cn.fujitsu.com, rostedt@goodmis.org,
wangyun@linux.vnet.ibm.com, xiaoguangrong@linux.vnet.ibm.com,
sbw@mit.edu, fweisbec@gmail.com, zhong@linux.vnet.ibm.com,
nikunj@linux.vnet.ibm.com, linux-pm@vger.kernel.org,
linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
linux-alpha@vger.kernel.org
Subject: Re: [PATCH 31/45] alpha/smp: Use get/put_online_cpus_atomic() to prevent CPU offline
Date: Mon, 24 Jun 2013 00:26:38 +0530 [thread overview]
Message-ID: <51C744E6.1040905@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAEdQ38HLzNoRABCUR7tEoBLJWn86xSd2VfSHxs0MPj5r5GvTXQ@mail.gmail.com>
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
prev parent reply other threads:[~2013-06-23 18:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130623133642.19094.16038.stgit@srivatsabhat.in.ibm.com>
2013-06-23 13:45 ` [PATCH 31/45] alpha/smp: Use get/put_online_cpus_atomic() to prevent CPU offline Srivatsa S. Bhat
2013-06-23 17:50 ` Matt Turner
2013-06-23 18:56 ` Srivatsa S. Bhat [this message]
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