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963a5b7a08
After playing around with virsh setmaxmem for a bit, I ran into some surprising behavior; if a hypervisor does not support the virDomainSetMaxMemory() API, but the value specified for setmaxmem is less than the current amount of memory in the domain, the domain would be ballooned down *before* an error was reported. To make this more consistent, run virDomainSetMaxMemory() before trying to shrink; that way, if an error is thrown, no changes to the running domain are made. Signed-off-by: Chris Lalancette <clalance@redhat.com>
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>