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6766ff10dd
Audit all changes to the qemu vm->current_snapshot, and make them update the saved xml file for both the previous and the new snapshot, so that there is always at most one snapshot with <active>1</active> in the xml, and that snapshot is used as the current snapshot even across libvirtd restarts. This patch does not fix the case of virDomainSnapshotDelete(,CHILDREN) where one of the children is the current snapshot; that will be later. * src/conf/domain_conf.h (_virDomainSnapshotDef): Alter member type and name. * src/conf/domain_conf.c (virDomainSnapshotDefParseString) (virDomainSnapshotDefFormat): Update clients. * docs/schemas/domainsnapshot.rng: Tighten rng. * src/qemu/qemu_driver.c (qemuDomainSnapshotLoad): Reload current snapshot. (qemuDomainSnapshotCreateXML, qemuDomainRevertToSnapshot) (qemuDomainSnapshotDiscard): Track current snapshot.
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>