[libvirt] Support for qemu snapshot=on drives in libvirt

[Paolo Bonzini]

Il 05/10/2012 13:40, Richard W.M. Jones ha scritto:
> I'm also concerned about the time is takes to run the external
> 'qemu-img create' command, which is non-trivial in some versions
> of qemu.  In libguestfs, every millisecond counts.

qemu-img create is a thin wrapper for bdrv_create that would be done
anyway by QEMU.  So there is no difference apart from the cost of
loading the binary.

Paolo