Re: [PATCH 2/3] add dev_to_node()

[KAMEZAWA Hiroyuki]

On Fri, 10 Nov 2006 13:28:25 -0500
Lee Schermerhorn <Lee.Schermerhorn@xxxxxx> wrote:

> On Fri, 2006-11-10 at 10:16 -0800, Christoph Lameter wrote:
> > On Wed, 8 Nov 2006, KAMEZAWA Hiroyuki wrote:
> > 
> > > I wonder there are no code for creating NODE_DATA() for device-only-node.
> > 
> > On IA64 we remap nodes with no memory / cpus to the nearest node with 
> > memory. I think that is sufficient.
> 
> I don't think this happens anymore.  

In my understanding , from drivers/acpi/numa.c, 
a node is created by a pxm found in SRAT table at boot time.

the node-number for the pxm which was not found in SRAT at boot time is "-1".
please check how acpi_map_pxm_to_node() is used.

If pci's node-id is based on pxm, checking return vaule of pxm_to_node() 
will be good.

-Kame

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