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lxcDomainAttachDeviceFlags: 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 c2a0d09046
commit 904d80b773
1 changed files with 16 additions and 23 deletions
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39
src/lxc/lxc_driver.c
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@ -4255,8 +4255,8 @@ static int lxcDomainAttachDeviceFlags(virDomainPtr dom,
virLXCDriver *driver = dom->conn->privateData;
virDomainObj *vm = NULL;
g_autoptr(virDomainDef) vmdef = NULL;
virDomainDeviceDef *dev = NULL;
virDomainDeviceDef *dev_copy = NULL;
g_autoptr(virDomainDeviceDef) dev_config = NULL;
g_autoptr(virDomainDeviceDef) dev_live = NULL;
int ret = -1;
g_autoptr(virLXCDriverConfig) cfg = virLXCDriverGetConfig(driver);
@ -4275,21 +4275,17 @@ static int lxcDomainAttachDeviceFlags(virDomainPtr dom,
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE);
if (dev == NULL)
goto endjob;
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!(dev_config = virDomainDeviceDefParse(xml, vm->def, driver->xmlopt,
NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto endjob;
}
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, NULL);
if (!dev_copy)
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!(dev_live = virDomainDeviceDefParse(xml, vm->def, driver->xmlopt,
NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto endjob;
}
@ -4299,22 +4295,22 @@ static int lxcDomainAttachDeviceFlags(virDomainPtr dom,
if (!vmdef)
goto endjob;
if (virDomainDefCompatibleDevice(vmdef, dev, NULL,
if (virDomainDefCompatibleDevice(vmdef, dev_config, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
false) < 0)
goto endjob;
if ((ret = lxcDomainAttachDeviceConfig(vmdef, dev_copy)) < 0)
if ((ret = lxcDomainAttachDeviceConfig(vmdef, dev_config)) < 0)
goto endjob;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (virDomainDefCompatibleDevice(vm->def, dev, NULL,
if (virDomainDefCompatibleDevice(vm->def, dev_live, NULL,
VIR_DOMAIN_DEVICE_ACTION_ATTACH,
true) < 0)
goto endjob;
if ((ret = lxcDomainAttachDeviceLive(driver, vm, dev)) < 0)
if ((ret = lxcDomainAttachDeviceLive(driver, vm, dev_live)) < 0)
goto endjob;
/*
* update domain status forcibly because the domain status may be
@ -4338,9 +4334,6 @@ static int lxcDomainAttachDeviceFlags(virDomainPtr dom,
virDomainObjEndJob(vm);
cleanup:
if (dev != dev_copy)
virDomainDeviceDefFree(dev_copy);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
return ret;
}