--- zzzz-none-000/linux-3.10.107/mm/mmu_context.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/mm/mmu_context.c	2021-02-04 17:41:59.000000000 +0000
@@ -31,6 +31,9 @@
 	tsk->mm = mm;
 	switch_mm(active_mm, mm, tsk);
 	task_unlock(tsk);
+#ifdef finish_arch_post_lock_switch
+	finish_arch_post_lock_switch();
+#endif
 
 	if (active_mm != mm)
 		mmdrop(active_mm);