From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yasunori Goto <y-goto@jp.fujitsu.com>
Date: Mon, 20 Mar 2006 09:57:39 +0000
Subject: Re: [PATCH: 017/017]Memory hotplug for new nodes v.4.(arch_register_node() for ia64)
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To: Dave Hansen <haveblue@us.ibm.com>
Cc: Andrew Morton <akpm@osdl.org>, "Luck, Tony" <tony.luck@intel.com>, Andi Kleen <ak@suse.de>, Linux Kernel ML <linux-kernel@vger.kernel.org>, linux-ia64@vger.kernel.org, linux-mm <linux-mm@kvack.org>

> On Fri, 2006-03-17 at 17:23 +0900, Yasunori Goto wrote:
> > +++ pgdat8/arch/ia64/kernel/topology.c	2006-03-16 16:06:27.000000000 +0900
> > @@ -65,6 +65,21 @@ EXPORT_SYMBOL(arch_register_cpu);
> >  EXPORT_SYMBOL(arch_unregister_cpu);
> >  #endif /*CONFIG_HOTPLUG_CPU*/
> >  
> > +#ifdef CONFIG_NUMA
> > +int arch_register_node(int num)
> > +{
> > +	if (sysfs_nodes[num].sysdev.id = num)
> > +		return 0;
> > +
> > +	return register_node(&sysfs_nodes[num], num, 0);
> > +}
> > +
> > +void arch_unregister_node(int num)
> > +{
> > +	unregister_node(&sysfs_nodes[num]);
> > +	sysfs_nodes[num].sysdev.id = -1;
> > +}
> > +#endif
> 
> I don't have a real problem with you cluttering up ia64 code, but if
> these are useful, why don't we put them in generic code?  They seem
> quite arch-independent to me.

I'm not sure they can be common code.

Current i386's code treats "parent node" in arch_register_node(). 
But, IA64 doesn't need it.

Bye.

-- 
Yasunori Goto