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8b316fe5da
This never worked. In 0.9.10 when this API was introduced, it was intended that the SHRINK flag combined with DELTA would shrink the volume by the specified capacity (to avoid passing negative numbers). See commit 055bbf4. When the SHRINK flag was finally implemented for the first backend in 1.2.13 (commit aa9aa6a), it was only implemented for the absolute values and with the delta flag the volume is always extended, regardless of the SHRINK flag. Treat the SHRINK flag as a minus sign when used together with DELTA, to allow shrinking volumes as was documented in the API since 0.9.10. https://bugzilla.redhat.com/show_bug.cgi?id=1220213
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>