What were you trying to do that didn't work?

A live volume migration that gets aborted mid way leaves the source disk larger than it was originally. 

What is the impact of this issue to you?

Guest will report

[   68.973995] vda: detected capacity change from 20971520 to 138586112

Which may be unexpected to user

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

100% with tested storage combination
(k8s node partition host directory->google cloud netapp volume)

Steps to reproduce

1. Live storage migrate a kubevirt VM disk
2. Cancel/Abort 
3.  

Expected results

bash-5.1$ qemu-img info /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img
image: /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img
file format: raw
virtual size: 10 GiB (10737418240 bytes)
disk size: 1.24 GiB
Child node '/file':
    filename: /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img
    protocol type: file
    file length: 10 GiB (10737418240 bytes)
    disk size: 1.24 GiB
    Format specific information:
        extent size hint: 1048576

(This is the source image, originally)

Actual results

bash-5.1$ qemu-img info /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img 
image: /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img
file format: raw
virtual size: 66.1 GiB (70956089344 bytes)
disk size: 1.24 GiB
Child node '/file':
    filename: /var/run/kubevirt-private/vmi-disks/dv-disk/disk.img
    protocol type: file
    file length: 66.1 GiB (70956089344 bytes)
    disk size: 1.24 GiB
    Format specific information:
        extent size hint: 1048576

Source image post cancel/abort

Additional information:

The source is a 10Gi disk image on the hosts directory (k8s "hostpath provisioner")
And it is attempting a migration to gcnv (google cloud netapp volumes) volume which is significantly larger (128Gi).

Another issue (possibly same underlying cause) - storage migration attempts to transfer significantly larger amount of data compared to original disk size. I was seeing 65~ Gi DataTotal metric but my original volume was a modest 10Gi.
I assume something is off due to NetApp storage efficiencies, but I am not 100% sure. 
I guess if someone could clarify if this is expected/not we can take it from there.

I can also provide the CNV/k8s level reproducer and environment.