Il 29/02/2012 20:47, Eric Blake ha scritto:
> This falls out very nicely.
>
> Do we want to also add a 'reopen' operation to the union, for the
> remaining action needed by oVirt live migration?
We can add it later, I think, if need arises. Switching to the
destination need not be done atomicall
On 02/29/2012 06:37 AM, Paolo Bonzini wrote:
> Add a new transaction type, "mirror". It stacks a new blkmirror
> file (instead of a snapshot) on top of the existing image.
>
> It is possible to combine snapshot and mirror as two actions in the
> same transaction. Because of atomicity ensured by
Add a new transaction type, "mirror". It stacks a new blkmirror
file (instead of a snapshot) on top of the existing image.
It is possible to combine snapshot and mirror as two actions in the
same transaction. Because of atomicity ensured by blockdev-transaction,
this will create a snapshot *and*
