From d03a8d064e202a47ab52df7a42b4a0561c45238f Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen.hemminger@vyatta.com>
Date: Mon, 29 Mar 2010 16:27:02 -0700
Subject: Ignore setting CPU affinity on UP systems

If only one CPU, then not worth bothering doing any kind of interrrupt
affinity.
---
 templates/interfaces/ethernet/node.tag/smp_affinity/node.def | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/templates/interfaces/ethernet/node.tag/smp_affinity/node.def b/templates/interfaces/ethernet/node.tag/smp_affinity/node.def
index 098287cc..f62ef246 100644
--- a/templates/interfaces/ethernet/node.tag/smp_affinity/node.def
+++ b/templates/interfaces/ethernet/node.tag/smp_affinity/node.def
@@ -29,6 +29,9 @@ syntax:expression: exec " \
         fi"
 
 update:
+	if [ $(cat /sys/devices/system/cpu/present) -eq 0 ]; then
+	    exit 0
+        fi
 	if [ "$VAR(@)" = "auto" ]; then
 	    echo "Setting SMP affinity for $VAR(../@) automatically."
 	    sudo /opt/vyatta/sbin/vyatta-auto-irqaffin.pl --setup $VAR(../@)
-- 
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