[Libguestfs] [PATCH 0/2] Don't use snapshot=on

[Richard W.M. Jones]

QEMU upstream has broken snapshot=on ... again.

These two patches stop using it entirely.  Instead we run
'qemu-img create' to create overlay disks as required.

Note that the libvirt and UML backends were already doing this: The
libvirt backend because <transient/> has never worked, and the UML
backend was running uml_mkcow because the UML-equivalent syntax of
snapshot=on was broken for years.  So this is a factoring out of that
logic into a central place.

Tested by:

  make -j1 check check-valgrind check-direct check-valgrind-direct

I have not tested the UML backend yet.

Rich.