Re: [libvirt] [RFC PATCHv2 1/n] snapshot: add revert-and-create branching of external snapshots

2012-11-20 Thread Peter Krempa
On 11/20/12 01:09, Eric Blake wrote: Right now, libvirt refuses to revert to the state at the time of an external snapshot, because doing so would reset things so that the next time the domain boots, we are using the backing file; but modifying the backing file invalidates all qcow2 files that

[libvirt] [RFC PATCHv2 1/n] snapshot: add revert-and-create branching of external snapshots

2012-11-19 Thread Eric Blake
Right now, libvirt refuses to revert to the state at the time of an external snapshot, because doing so would reset things so that the next time the domain boots, we are using the backing file; but modifying the backing file invalidates all qcow2 files that are based on top of it. There are three