From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH RFC V3 2/8] stop_machine: make stop_machine safe and efficient
 to call early
Date: Wed, 12 Oct 2011 08:44:00 -0700
Message-ID: <4E95B5C0.10606@goop.org>
References: <cover.1317755691.git.jeremy.fitzhardinge@citrix.com> <619c66d6da63aa086e2eac017e7aed216cc8ddc3.1317755691.git.jeremy.fitzhardinge@citrix.com> <8762k4grwy.fsf@rustcorp.com.au> <20111010073405.GC29035@elte.hu> <4E934F37.2020300@goop.org> <20111012073402.GJ18618@elte.hu>
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To: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>, Steven Rostedt <rostedt@goodmis.org>, "David S. Miller" <davem@davemloft.net>, David Daney <david.daney@cavium.com>, Michael Ellerman <michael@ellerman.id.au>, Jan Glauber <jang@linux.vnet.ibm.com>, Jason Baron <jbaron@redhat.com>, the arch/x86 maintainers <x86@kernel.org>, Xen Devel <xen-devel@lists.xensource.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Andrew Morton <akpm@linux-foundation.org>, "H. Peter Anvin" <hpa@linux.intel.com>
List-Id: xen-devel@lists.xenproject.org

On 10/12/2011 12:34 AM, Ingo Molnar wrote:
> * Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>
>> On 10/10/2011 12:34 AM, Ingo Molnar wrote:
>>> * Rusty Russell <rusty@rustcorp.com.au> wrote:
>>>
>>>> On Tue,  4 Oct 2011 12:18:03 -0700, Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>>>>> From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
>>>>>
>>>>> Make stop_machine() safe to call early in boot, before stop_machine()
>>>>> has been set up, by simply calling the callback function directly if
>>>>> there's only one CPU online.
>>>> Not that you need this, since it's >90% Tejun's code now, but:
>>>>
>>>> Acked-by: Rusty Russell <rusty@rustcorp.com.au>
>>> hey, extra review is always useful.
>>>
>>> Jeremy, Tejun, what's the expected merge path of these changes?
>> Andrew has already picked up the stop_machine patch, I think.  But it's
>> pretty settled now, so it shouldn't cause any problem if it gets via
>> multiple paths.
>>
>> What about the jump-label stuff?  Has that been going via tip.git in the
>> past, or by some other path?
> If it has Jason's and PeterZ's ack then it can go via any other tree 
> in this cycle - we are not carrying jump label patches right now.
>
> But those acks are very much desired.

Jason has already Acked it, but then pointed out a couple of problems to
address.

I'll add PeterZ to the next repost.

    J