migration: set name for all I/O channels created

Ensure that all I/O channels created for migration are given names
to distinguish their respective roles.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
diff --git a/migration/migration.c b/migration/migration.c
index 4d417b7..156e707 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1567,6 +1567,7 @@
      * to do this we use a qemu_buf to hold the whole of the device state.
      */
     bioc = qio_channel_buffer_new(4096);
+    qio_channel_set_name(QIO_CHANNEL(bioc), "migration-postcopy-buffer");
     fb = qemu_fopen_channel_output(QIO_CHANNEL(bioc));
     object_unref(OBJECT(bioc));