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cpu-partitioning: Modify irqbalance config regardless of defirqaffinity exit code

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Previously the irqbalance config was not modified if setting the affinity
of at least one IRQ failed. That does not make much sense to me - it can
result in irqbalance assigning isolated CPUs to IRQs, even if it can be
prevented.

Even if affinity cannot be changed for any of the present IRQs,
hypothetically it can happen (I think) that new hardware is hotplugged,
and the affinity of its IRQ can be changed. So let's always modify the
irqbalance config for good measure.

Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
This commit is contained in:
Ondřej Lysoněk 2018-07-02 23:14:52 +02:00
parent aa712fe584
commit 66b247a7e9
1 changed files with 3 additions and 4 deletions
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7
profiles/cpu-partitioning/script.sh
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@ -39,10 +39,9 @@ start() {
mkdir -p "${TUNED_tmpdir}/usr/lib/dracut/hooks/pre-udev"
cp /etc/systemd/system.conf "${TUNED_tmpdir}/etc/systemd/"
cp 00-tuned-pre-udev.sh "${TUNED_tmpdir}/usr/lib/dracut/hooks/pre-udev/"
if python /usr/libexec/tuned/defirqaffinity.py "remove" "$TUNED_isolated_cores_expanded"; then
sed -i '/^IRQBALANCE_BANNED_CPUS=/d' /etc/sysconfig/irqbalance
echo "IRQBALANCE_BANNED_CPUS=$TUNED_isolated_cpumask" >>/etc/sysconfig/irqbalance
fi
python /usr/libexec/tuned/defirqaffinity.py "remove" "$TUNED_isolated_cores_expanded"
sed -i '/^IRQBALANCE_BANNED_CPUS=/d' /etc/sysconfig/irqbalance
echo "IRQBALANCE_BANNED_CPUS=$TUNED_isolated_cpumask" >>/etc/sysconfig/irqbalance
setup_kvm_mod_low_latency
disable_ksm