--- zzzz-none-000/linux-3.10.107/arch/um/kernel/reboot.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/um/kernel/reboot.c	2021-02-04 17:41:59.000000000 +0000
@@ -15,28 +15,21 @@
 
 static void kill_off_processes(void)
 {
-	if (proc_mm)
-		/*
-		 * FIXME: need to loop over userspace_pids
-		 */
-		os_kill_ptraced_process(userspace_pid[0], 1);
-	else {
-		struct task_struct *p;
-		int pid;
+	struct task_struct *p;
+	int pid;
 
-		read_lock(&tasklist_lock);
-		for_each_process(p) {
-			struct task_struct *t;
+	read_lock(&tasklist_lock);
+	for_each_process(p) {
+		struct task_struct *t;
 
-			t = find_lock_task_mm(p);
-			if (!t)
-				continue;
-			pid = t->mm->context.id.u.pid;
-			task_unlock(t);
-			os_kill_ptraced_process(pid, 1);
-		}
-		read_unlock(&tasklist_lock);
+		t = find_lock_task_mm(p);
+		if (!t)
+			continue;
+		pid = t->mm->context.id.u.pid;
+		task_unlock(t);
+		os_kill_ptraced_process(pid, 1);
 	}
+	read_unlock(&tasklist_lock);
 }
 
 void uml_cleanup(void)