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Re: [libvirt] [PATCHv3 18/43] snapshot: prevent migration from stranding snapshot data



On 08/24/2011 09:22 AM, Eric Blake wrote:
Migration is another case of stranding metadata.  And since
snapshot metadata is arbitrarily large, there's no way to
shoehorn it into the migration cookie of migration v3.

* src/qemu/qemu_driver.c (qemudDomainMigratePerform)
(qemuDomainMigrateBegin3, qemuDomainMigratePerform3): Add
restriction.

Yuck. I just noticed that this patch adds a migration restriction in qemu_driver, but we already have migration restriction in _two_ other places in qemu_migration.c. I'll refactor this to put all migration restrictions into a single site, under qemuMigrationIsAllowed, to cut down on the duplication.

--
Eric Blake   eblake redhat com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org


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