[libvirt] [PATCH] qemu: snapshot: Forbid snapshots when backing is a scsi passthrough disk

[Eric Blake]

On 01/21/2014 08:57 AM, Peter Krempa wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1034993
> 
> SCSI passthrough disks (<disk .. device="lun">) can't be used as backing
> for snapshots. Currently with upstream qemu the vm crashes on such
> attempt.
> 
> This patch adds a early check to catch an attempt to do such a snapshot
> and rejects it right away. qemu will fix the issue but this will let us
> control the error message.

ACK.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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