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>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index e0b537d..fb2f237 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -109,7 +109,22 @@
STEXI
@item block_job_cancel
@findex block_job_cancel
-Stop an active block streaming operation.
+Stop an active background block operation (streaming, mirroring).
+ETEXI
+
+ {
+ .name = "block_job_complete",
+ .args_type = "device:B",
+ .params = "device",
+ .help = "stop an active background block operation",
+ .mhandler.cmd = hmp_block_job_complete,
+ },
+
+STEXI
+@item block_job_complete
+@findex block_job_complete
+Manually trigger completion of an active background block operation.
+For mirroring, this will switch the device to the destination path.
ETEXI
{
