block: add block-job-complete

While streaming can be dropped as soon as it progressed through the whole
image, mirroring needs to be completed manually for two reasons: 1) so that
management knows exactly when the VM switches to the target; 2) because
for other use cases such as replication, we may leave the operation running
for the whole life of the virtual machine.

Add a new block job command that manually completes background operations.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/qerror.h b/qerror.h
index c91708cc3c..dacac52cf4 100644
--- a/qerror.h
+++ b/qerror.h
@@ -54,6 +54,9 @@ void assert_no_error(Error *err);
 #define QERR_BLOCK_JOB_PAUSED \
     ERROR_CLASS_GENERIC_ERROR, "The block job for device '%s' is currently paused"
 
+#define QERR_BLOCK_JOB_NOT_READY \
+    ERROR_CLASS_GENERIC_ERROR, "The active block job for device '%s' cannot be completed"
+
 #define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \
     ERROR_CLASS_GENERIC_ERROR, "Block format '%s' used by device '%s' does not support feature '%s'"