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[PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning

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This was supposed to see the full memory on a ASUS A8SX motherboard
with 4GB RAM where the northbridge reports less memory, but it didn't
help there. But it's a reasonable change so let's include it anyways.

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen 2007-05-02 19:27:21 +02:00 committed by Andi Kleen
parent c5bcb5635a
commit 3bea9c9793
1 changed files with 2 additions and 0 deletions
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arch/x86_64/mm/k8topology.c
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@ -62,6 +62,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
reg = read_pci_config(0, nb, 0, 0x60);
numnodes = ((reg >> 4) & 0xF) + 1;
if (numnodes <= 1)
return -1;
printk(KERN_INFO "Number of nodes %d\n", numnodes);