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35c7701c64
Use the recent addition of qemuDomainPrepareDiskChainElement to obtain locking manager lease, permit a block device through cgroups, and set the SELinux label; then audit the fact that we hand a new file over to qemu. Alas, releasing the lease and label at the end of the mirroring is a trickier prospect (we would have to trace the backing chain of both source and destination, and be sure not to revoke rights to any part of the chain that is shared), so for now, virDomainBlockJobAbort still leaves things with additional access granted (as block-pull and block-commit have the same problem of not clamping access after completion, a future cleanup would cover all three commands). * src/qemu/qemu_driver.c (qemuDomainBlockCopy): Set up labeling.
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>