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Rather than further overloading 'blockpull', I decided to create a new virsh command to expose the new flags of virDomainBlockRebase. Blocking until the command completes naturally is pointless, since the block copy job is intended to run indefinitely. Instead, I made the command support three --wait modes: by default, it runs until mirroring is started; with --pivot, it pivots as soon as mirroring is started; and with --finish, it aborts (for a clean copy) as soon as mirroring is started. * tools/virsh.c (VSH_CMD_BLOCK_JOB_COPY): New mode. (blockJobImpl): Support new flags. (cmdBlockCopy): New command. (cmdBlockJob): Support new job info, new abort flag. * tools/virsh.pod (blockcopy, blockjob): Document the new command and flags.
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>