Re: [PATCH 02/26] x86-64, NUMA: Simplify hotplug node handling in acpi_numa_memory_affinity_init()

[Tejun Heo]

On Sat, Feb 12, 2011 at 6:47 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> -             if ((nd->start | nd->end) == 0)
>> -                     node_clear(node, nodes_parsed);
>
> after change
> looks like nodes_parsed is not set anymore for node that only have hotplug memory.

Yeap, which matches the above node_clear().  If the node was already
occupied, the bit would already be set.  If not, the above
node_clear() would clear it, so the same result.  The code was quite
convoluted.

Thanks.

-- 
tejun
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