Re: [libvirt] [PATCH 04/10] qemu: hotplug: Prepare for multiple backing chain member hotplug

Similarly to how we've intergrated data belonging to a single virStorageSource for purposes of attaching it to a qemu instance we will need to agregate data relevant for the whole disk. With blockdev there will be some disk-wide backing chain members such as the copy-on-read handler. Introduce qemuHotplugDiskSourceData which agregates the backing chain and other data relevant for the disk and functions which generate it and apply and rollback it. In addition to disk hotplug this will also be reused for media changing where we need to exchange the full disk backend. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_hotplug.c | 118 ++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 109 insertions(+), 9 deletions(-)