migration: pass in_postcopy instead of check state again

Not necessary to do the check again.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20191005220517.24029-4-richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
diff --git a/migration/migration.c b/migration/migration.c
index d7f8b42..3febd0f 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3149,8 +3149,7 @@
             return MIG_ITERATE_SKIP;
         }
         /* Just another iteration step */
-        qemu_savevm_state_iterate(s->to_dst_file,
-            s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE);
+        qemu_savevm_state_iterate(s->to_dst_file, in_postcopy);
     } else {
         trace_migration_thread_low_pending(pending_size);
         migration_completion(s);