Re: [libvirt] [PATCHv2 24/62] qemu: domain: Add infrastructure to generate block node names

Node names for block objects in qemu need to be unique for an instance of the qemu process. Add a counter to generate objects sequentially and store it in the status XML so that we can restore it. The helpers added allow to create new node names and reset the counter after the VM process terminates. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 38 ++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_domain.h | 6 ++++++ src/qemu/qemu_process.c | 3 +++ 3 files changed, 47 insertions(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index e5f055f203..032ad80baa 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -2438,6 +2438,9 @@ qemuDomainObjPrivateXMLFormat(virBufferPtr buf, qemuDomainObjPrivateXMLFormatPR(buf, priv); + if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV)) + virBufferAsprintf(buf, "<nodename next='%llu'/>\n", priv->nodenameindex);

+ if (qemuDomainObjPrivateXMLFormatBlockjobs(buf, vm) < 0) return -1;