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Starting from commit 2e82c18c in Xen (will be included in Xen 4.4) both libxl_get_max_cpus() and libxl_get_max_nodes() start returning a proper libxl error code, in case of failure. This patch fixes this in the libxl driver. Note that, although it is now basically impossible for them to return 0, that would, theoretically, still be wrong. Also, checking that the returned value is '<= 0' makes the code correct for both Xen 4.4 and Xen 4.3 (and 4.2), and that is why we go for it (rather than just '< 0'). Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Cc: Jim Fehlig <jfehlig@suse.com> Cc: Ian Jackson <Ian.Jackson@eu.citrix.com> Cc: Martin Kletzander <mkletzan@redhat.com> Signed-off-by: Martin Kletzander <mkletzan@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>