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Commit id '2ac0e647' for https://bugzilla.redhat.com/show_bug.cgi?id=1206521 was meant to be a generic check for the CreateVol, CreateVolFrom, and DeleteVol paths to check if the storage backend's changed the pool's view of allocation or available values. Unfortunately as it turns out this caused a side effect when the disk backend created an extended partition there would be no actual storage removed from the pool, thus the changes would not find any change in allocation or available and incorrectly update the pool values using the size of the extended partition. A subsequent refresh of the pool would reset the values appropriately. This patch modifies those checks in order to specifically not update the pool allocation and available for only the disk backend rather than be generic before and after checks.
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>