On a Monday in 2020, Peter Krempa wrote:
We always tried to install backing store for the image even if it didn't
make sesne, e.g. for a full backup into a raw image. Additionally we

sense

didn't record the backing file into the qcow2 metadata so the image
itself contained the diff of data but reading from it would be
incomplete as it depends on the backing image.

This patch fixes both issues by carefully installing the correct backing
file when appropriate and also recording it into the metadata when
creating the image.

https://bugzilla.redhat.com/show_bug.cgi?id=1813310

Signed-off-by: Peter Krempa <pkre...@redhat.com>
---
src/qemu/qemu_backup.c | 26 ++++++++++++++++++++++----
1 file changed, 22 insertions(+), 4 deletions(-)


Reviewed-by: Ján Tomko <jto...@redhat.com>

Jano

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