Re: [PATCH v3 3/3] qapi: Allow introspecting fix for savevm's cooperation with blockdev

[Markus Armbruster]

Peter Krempa <address@hidden> writes:

> 'savevm' was buggy as it considered all monitor-owned block device nodes
> for snapshot. With introduction of -blockdev the common usage made all
> nodes including protocol and backing file nodes monitor-owned and thus
> considered for snapshot.
>
> This is a problem since the 'file' protocol nodes can't have internal
> snapshots and it does not make sense to take snapshot of nodes
> representing backing files.
>
> This was fixed by commit 05f4aced658a02b02 clients need to be able to
> detect whether this fix is present.

05f4aced658a02b02.  Clients

>
> Since savevm does not have an QMP alternative, add the feature for the
> 'human-monitor-command' backdoor which is used to call this command in
> modern use.
>
> Signed-off-by: Peter Krempa <address@hidden>

Preferrably with the commit message tweak:
Reviewed-by: Markus Armbruster <address@hidden>