[libvirt] [PATCH v3 3/4] qemu: Keep numad hint after reboot
Ján Tomko
jtomko at redhat.com
Thu Aug 13 12:49:34 UTC 2015
s/reboot/daemon restart/ ?
On Thu, Aug 13, 2015 at 10:18:33AM +0200, Martin Kletzander wrote:
> The numad hint stored in priv->autoNodeset is information that gets lost
> during daemon restart. And because we would like to use that
> information in the future, we also need to save it in the status XML.
> For the sake of tests, we need to initialize nnumaCell_max to some
> value, so that the restoration doesn't fail in our test suite. There is
> no need to fill in the actual numa cell data since the recalculating
> function virCapabilitiesGetCpusForNodemask() will not fail, it will just
> skip filling the data in the bitmap which we don't use in tests anyway.
>
> Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
> ---
> src/qemu/qemu_domain.c | 32 +++++++++++++++++++++++++++++++-
> tests/qemuxml2xmltest.c | 3 ++-
> tests/testutilsqemu.c | 2 ++
> 3 files changed, 35 insertions(+), 2 deletions(-)
> @@ -805,15 +817,33 @@ qemuDomainObjPrivateXMLParse(xmlXPathContextPtr ctxt,
> }
> VIR_FREE(nodes);
>
> + if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
> + goto error;
> +
> + if ((tmp = virXPathString("string(./numad/@nodeset)", ctxt))) {
> + if (virBitmapParse(tmp, 0, &priv->autoNodeset,
> + caps->host.nnumaCell_max) < 0)
> + goto error;
> +
> + if (!(priv->autoCpuset = virCapabilitiesGetCpusForNodemask(caps,
> + priv->autoNodeset)))
> + goto error;
> + }
> + virObjectUnref(caps);
> + caps = NULL;
This assignment seems redundant.
Jan
> + VIR_FREE(tmp);
> +
> return 0;
>
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