From: Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH RFC V3 2/8] stop_machine: make stop_machine safe and
 efficient to call early
Date: Mon, 10 Oct 2011 09:34:05 +0200
Message-ID: <20111010073405.GC29035@elte.hu>
References: <cover.1317755691.git.jeremy.fitzhardinge@citrix.com>
 <619c66d6da63aa086e2eac017e7aed216cc8ddc3.1317755691.git.jeremy.fitzhardinge@citrix.com>
 <8762k4grwy.fsf@rustcorp.com.au>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <8762k4grwy.fsf@rustcorp.com.au>
Sender: linux-kernel-owner@vger.kernel.org
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, 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


* 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?

Thanks,

	Ingo