[PATCH v2 0/6] Introduce active RBD disk snapshot support

[Peter Krempa]

On Wed, Feb 15, 2023 at 05:28:16 -0600, Or Ozeri wrote:
> Internal disk snapshots are currently only supported on non-active VMs.
> For RBD disks only, this patch series extends this support for active VMs running with qemu.
> We also add the option to set a name for each RBD snapshot, and allow taking them alongside other external disk snapshots (mixing).
> Deletion and reverting to snapshots containing RBD snapshots is not allowed, and is validated.
> Note that taking RBD snapshots on a non-active VM is still unsupported.
> 
> Changes in v2:
>     - reduce patch to RBD use-case only (e.g. not including qcow2 internal snapshots)
>     - add validation to disallow RBD snapshots deletion / reverting
> 
> Or Ozeri (6):
>   conf: Add snapshotName attribute for internal disk snapshot
>   qemu: Block deletion and reverting on non-full internal snapshots
>   qemu: Add internal support for active disk internal snapshots
>   qemu: Allow active disk snapshots for RBD disks
>   qemu: Allow setting per-disk snapshot name for RBD disks
>   qemu: Allow mixing active internal and external active disk snapshots

Note that also Pavel (CC'd) might want to add more comments as he's
currently working on the snapshot code.