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138e65c3be
Currently VolOpen notifies the user of a potentially non-fatal failure by returning -2 and logging a VIR_WARN or VIR_INFO. Unfortunately most callers treat -2 as fatal but don't actually report any message with the error APIs. Rename the VOL_OPEN_ERROR flag to VOL_OPEN_NOERROR. If NOERROR is specified, we preserve the current behavior of returning -2 (there's only one caller that wants this). However in the default case, only return -1, and actually use the error APIs. Fix up a couple callers as a result.
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>