diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index e33903b419a9..d177bea0bd73 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -40,9 +40,9 @@ static void __crst_table_upgrade(void *arg)
 	struct mm_struct *mm = arg;
 	struct ctlreg asce;
 
-	asce.val = mm->context.asce;
 	/* change all active ASCEs to avoid the creation of new TLBs */
 	if (current->active_mm == mm) {
+		asce.val = mm->context.asce;
 		get_lowcore()->user_asce = asce;
 		local_ctl_load(7, &asce);
 		if (!test_thread_flag(TIF_ASCE_PRIMARY))