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157a33a707
This patch introduces a function that will allow us to resolve a relative difference between two elements of a disk backing chain. This function will be used to allow relative block commit and block pull where we need to specify the new relative name of the image to qemu. This patch also adds unit tests for the function to verify that it works correctly.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>