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qemu: hotplug: Assume QEMU_CAPS_DEVICE in qemuDomainAttachVirtioDiskDevice

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After killing one of the conditionals it's now guaranteed to have
@drivealias populated when calling the monitor, so the code attempting
to cleanup can be simplified.
This commit is contained in:
Peter Krempa 2016-04-26 13:51:41 +02:00
parent c01f4e9e55
commit 375a3d7585
1 changed files with 30 additions and 45 deletions
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75
src/qemu/qemu_hotplug.c
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@ -333,7 +333,6 @@ qemuDomainAttachVirtioDiskDevice(virConnectPtr conn,
virDomainDiskDefPtr disk)
{
int ret = -1;
const char* type = virDomainDiskBusTypeToString(disk->bus);
qemuDomainObjPrivatePtr priv = vm->privateData;
char *devstr = NULL;
char *drivestr = NULL;
@ -357,59 +356,45 @@ qemuDomainAttachVirtioDiskDevice(virConnectPtr conn,
if (qemuDomainPrepareDisk(driver, vm, disk, NULL, false) < 0)
goto cleanup;
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE)) {
if (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
if (virDomainCCWAddressAssign(&disk->info, priv->ccwaddrs,
!disk->info.addr.ccw.assigned) < 0)
goto error;
} else if (!disk->info.type ||
disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
if (virDomainPCIAddressEnsureAddr(priv->pciaddrs, &disk->info) < 0)
goto error;
}
releaseaddr = true;
if (qemuAssignDeviceDiskAlias(vm->def, disk, priv->qemuCaps) < 0)
if (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
if (virDomainCCWAddressAssign(&disk->info, priv->ccwaddrs,
!disk->info.addr.ccw.assigned) < 0)
goto error;
if (!(drivestr = qemuBuildDriveStr(conn, disk, false, priv->qemuCaps)))
goto error;
if (!(drivealias = qemuDeviceDriveHostAlias(disk, priv->qemuCaps)))
goto error;
if (!(devstr = qemuBuildDriveDevStr(vm->def, disk, 0, priv->qemuCaps)))
} else if (!disk->info.type ||
disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
if (virDomainPCIAddressEnsureAddr(priv->pciaddrs, &disk->info) < 0)
goto error;
}
releaseaddr = true;
if (qemuAssignDeviceDiskAlias(vm->def, disk, priv->qemuCaps) < 0)
goto error;
if (!(drivestr = qemuBuildDriveStr(conn, disk, false, priv->qemuCaps)))
goto error;
if (!(drivealias = qemuDeviceDriveHostAlias(disk, priv->qemuCaps)))
goto error;
if (!(devstr = qemuBuildDriveDevStr(vm->def, disk, 0, priv->qemuCaps)))
goto error;
if (VIR_REALLOC_N(vm->def->disks, vm->def->ndisks+1) < 0)
goto error;
qemuDomainObjEnterMonitor(driver, vm);
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE)) {
ret = qemuMonitorAddDrive(priv->mon, drivestr);
if (ret == 0) {
ret = qemuMonitorAddDevice(priv->mon, devstr);
if (ret < 0) {
virErrorPtr orig_err = virSaveLastError();
if (!drivealias ||
qemuMonitorDriveDel(priv->mon, drivealias) < 0) {
VIR_WARN("Unable to remove drive %s (%s) after failed "
"qemuMonitorAddDevice",
NULLSTR(drivealias), drivestr);
}
if (orig_err) {
virSetError(orig_err);
virFreeError(orig_err);
}
ret = qemuMonitorAddDrive(priv->mon, drivestr);
if (ret == 0) {
ret = qemuMonitorAddDevice(priv->mon, devstr);
if (ret < 0) {
virErrorPtr orig_err = virSaveLastError();
if (qemuMonitorDriveDel(priv->mon, drivealias) < 0) {
VIR_WARN("Unable to remove drive %s (%s) after failed "
"qemuMonitorAddDevice", drivealias, drivestr);
}
if (orig_err) {
virSetError(orig_err);
virFreeError(orig_err);
}
}
} else if (!disk->info.type ||
disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virDevicePCIAddress guestAddr = disk->info.addr.pci;
ret = qemuMonitorAddPCIDisk(priv->mon, src, type, &guestAddr);
if (ret == 0) {
disk->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI;
memcpy(&disk->info.addr.pci, &guestAddr, sizeof(guestAddr));
}
}
if (qemuDomainObjExitMonitor(driver, vm) < 0) {