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With QEMU >= 0.12 the host and guest side of disks no longer have the same naming convention. Specifically the host side will now get a 'drive-' prefix added to its name. The 'info blockstats' monitor command returns the host side name, so it is neccessary to strip this off when looking up stats since libvirt stores the guest side name ! * src/qemu/qemu_conf.c, src/qemu/qemu_conf.h: Move 'drive-' prefix string to a defined constant * src/qemu/qemu_monitor_json.c, src/qemu/qemu_monitor_text.c: Strip off 'drive-' prefix (if found) when looking up disk stats
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>