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qemuDomainDetachDeviceLiveAndConfig: Parse XML twice rather than use virDomainDeviceDefCopy

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'virDomainDeviceDefCopy' formats the definition and parses it back.
Since we already are parsing the XML here, we're better off parsing it
twice and save the formatting step.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2022-11-22 17:01:31 +01:00
parent 645afd640c
commit 333fb6714e
1 changed files with 12 additions and 20 deletions
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32
src/qemu/qemu_driver.c
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@ -7865,8 +7865,8 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virQEMUDriverConfig) cfg = NULL;
g_autoptr(virDomainDeviceDef) dev = NULL;
virDomainDeviceDef *dev_copy = NULL;
g_autoptr(virDomainDeviceDef) dev_config = NULL;
g_autoptr(virDomainDeviceDef) dev_live = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE;
g_autoptr(virDomainDef) vmdef = NULL;
int ret = -1;
@ -7880,21 +7880,15 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
!(flags & VIR_DOMAIN_AFFECT_LIVE))
parse_flags |= VIR_DOMAIN_DEF_PARSE_INACTIVE;
dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, priv->qemuCaps,
parse_flags);
if (dev == NULL)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!(dev_config = virDomainDeviceDefParse(xml, vm->def, driver->xmlopt,
priv->qemuCaps, parse_flags)))
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG &&
flags & VIR_DOMAIN_AFFECT_LIVE) {
/* If we are affecting both CONFIG and LIVE
* create a deep copy of device as adding
* to CONFIG takes one instance.
*/
dev_copy = virDomainDeviceDefCopy(dev, vm->def,
driver->xmlopt, priv->qemuCaps);
if (!dev_copy)
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!(dev_live = virDomainDeviceDefParse(xml, vm->def, driver->xmlopt,
priv->qemuCaps, parse_flags)))
goto cleanup;
}
@ -7904,7 +7898,7 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
if (!vmdef)
goto cleanup;
if (qemuDomainDetachDeviceConfig(vmdef, dev_copy, priv->qemuCaps,
if (qemuDomainDetachDeviceConfig(vmdef, dev_config, priv->qemuCaps,
parse_flags,
driver->xmlopt) < 0)
goto cleanup;
@ -7913,7 +7907,7 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
int rc;
if ((rc = qemuDomainDetachDeviceLive(vm, dev, driver, false)) < 0)
if ((rc = qemuDomainDetachDeviceLive(vm, dev_live, driver, false)) < 0)
goto cleanup;
if (rc == 0 && qemuDomainUpdateDeviceList(vm, VIR_ASYNC_JOB_NONE) < 0)
@ -7933,8 +7927,6 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriver *driver,
ret = 0;
cleanup:
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
return ret;
}