[libvirt PATCH 19/80] qemu: Don't wait for migration job when migration is running

[Peter Krempa]

On Tue, May 10, 2022 at 17:20:40 +0200, Jiri Denemark wrote:
> Migration is a job which takes some time and if it succeeds, there's
> nothing to call another migration on. If a migration fails, it might
> make sense to rerun it with different arguments, but this would only be
> done once the first migration fails rather than while it is still
> running.
> 
> If this was not enough, the migration job now stays active even if
> post-copy migration fails and anyone possibly retrying the migration
> would be waiting for the job timeout just to get a suboptimal error
> message.
> 
> So let's special case getting a migration job when another one is
> already active.
> 
> Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
> ---
>  src/qemu/qemu_migration.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)

Reviewed-by: Peter Krempa <pkrempa at redhat.com>