[libvirt] [PATCH 8/8] qemu: domain: Base block job interlocking on QEMU_CAPS_INCREMENTAL_BACKUP

The QEMU_CAPS_INCREMENTAL_BACKUP will be enabled once all bits of the incremental backup feature work as expected which means also properly interacting with blockjobs and snapshots. Thus we can allow blockjobs and snapshots if QEMU_CAPS_INCREMENTAL_BACKUP is present even when checkpoints exist. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index e8a82fee0b..6d42530db0 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -15526,7 +15526,10 @@ qemuDomainDefHasManagedPR(virDomainObjPtr vm) int qemuDomainSupportsCheckpointsBlockjobs(virDomainObjPtr vm) { - if (virDomainListCheckpoints(vm->checkpoints, NULL, NULL, NULL, 0) > 0) { + qemuDomainObjPrivatePtr priv = vm->privateData; + + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_INCREMENTAL_BACKUP) && + virDomainListCheckpoints(vm->checkpoints, NULL, NULL, NULL, 0) > 0) { virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", _("cannot perform block operations while checkpoint exists")); return -1; -- 2.21.0