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qemu: check driver name while attaching disk

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This bug was reported by Shi Jin(jinzishuai@gmail.com):
=============
# virsh attach-disk RHEL6RC /var/lib/libvirt/images/test3.img vdb \
        --driver file --subdriver qcow2
Disk attached successfully

# virsh save RHEL6RC /var/lib/libvirt/images/memory.save
Domain RHEL6RC saved to /var/lib/libvirt/images/memory.save

# virsh restore /var/lib/libvirt/images/memory.save
error: Failed to restore domain from /var/lib/libvirt/images/memory.save
error: internal error unsupported driver name 'file'
       for disk '/var/lib/libvirt/images/test3.img'
=============

We check the driver name when we start or restore VM, but we do
not check it while attaching a disk. This adds the same check on disk
driverName used in qemuBuildCommandLine to qemudDomainAttachDevice.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
This commit is contained in:
Wen Congyang 2011-03-07 14:35:49 +08:00 committed by Laine Stump
parent 08ddbe61f6
commit e2aec53b97
1 changed files with 8 additions and 0 deletions
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8
src/qemu/qemu_driver.c
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@ -4025,6 +4025,14 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
goto endjob;
if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
if (dev->data.disk->driverName != NULL &&
!STREQ(dev->data.disk->driverName, "qemu")) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported driver name '%s' for disk '%s'"),
dev->data.disk->driverName, dev->data.disk->src);
goto endjob;
}
if (qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_DEVICES)) {
if (virCgroupForDomain(driver->cgroup, vm->def->name, &cgroup, 0) !=0 ) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,