Add logging for queue submit and complet counts

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/engines/libaio.c b/engines/libaio.c
index 7ef3ff8..7e69c23 100644
--- a/engines/libaio.c
+++ b/engines/libaio.c
@@ -144,13 +144,16 @@
 		ret = io_submit(ld->aio_ctx, ld->iocbs_nr, iocbs);
 		if (ret > 0) {
 			fio_libaio_queued(td, io_us, ret);
+			io_u_mark_submit(td, ret);
 			ld->iocbs_nr -= ret;
 			io_us += ret;
 			iocbs += ret;
 			ret = 0;
-		} else if (!ret || ret == -EAGAIN || ret == -EINTR)
+		} else if (!ret || ret == -EAGAIN || ret == -EINTR) {
+			if (!ret)
+				io_u_mark_submit(td, ret);
 			continue;
-		else
+		} else
 			break;
 	} while (ld->iocbs_nr);