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Hey,

On Wed, 2012-11-28 at 12:21 +0200, Gary Kotton wrote:
> Hi,
> There is valid concern about the upgrade procedure with this patch. 
> There is a way that we are able to do this without creating an major 
> problems:
> 1. Leave the class QuantumLinuxBridgeVIFDriver unchanged
> 2. Add in a new class QuantumLinuxBridgeVIFDriverEnhanced (or if someone 
> has a better name). This class will contain the changes. If someone 
> wants to benefit fro the changes then she/he will need to update their 
> configuration file to:
>      
> libvirt_vif_driver=nova.virt.libvirt.vif.QuantumLinuxBridgeVIFDriverEnhanced
> This can be documented and it may treat all of the concerns. Naturally a 
> patch upstream will need to be added so that this wil be forward compatible.

Yeah, I think this would work well - linuxbridge users are no longer
required to update Quantum before Nova, they just need to update Quantum
before using the new VIF driver.

So, yep - go for it IMHO. It'll have to wait until after 2012.2.1 though
and will have to happen on master too.

Cheers,
Mark.