rcutorture: Print end-of-test state (034777d7) · Commits · 戴 / test

This commit adds end-of-test state printout to help check whether RCU shut down nicely. Note that this printout only helps for flavors of RCU that are not used much by the kernel. In particular, for normal RCU having a grace period in progress is expected behavior. Signed-off-by:

Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by:

Nicholas Piggin <npiggin@gmail.com>

kernel/rcu/rcutorture.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1609,6 +1609,9 @@ static enum cpuhp_state rcutor_hp;
		static void
		rcu_torture_cleanup(void)
		{
		int flags = 0;
		unsigned long gpnum = 0;
		unsigned long completed = 0;
		int i;

		rcutorture_record_test_transition();
		@@ -1639,6 +1642,11 @@ rcu_torture_cleanup(void)
		fakewriter_tasks = NULL;
		}

		rcutorture_get_gp_data(cur_ops->ttype, &flags, &gpnum, &completed);
		srcutorture_get_gp_data(cur_ops->ttype, srcu_ctlp,
		&flags, &gpnum, &completed);
		pr_alert("%s: End-test grace-period state: g%lu c%lu f%#x\n",
		cur_ops->name, gpnum, completed, flags);
		torture_stop_kthread(rcu_torture_stats, stats_task);
		torture_stop_kthread(rcu_torture_fqs, fqs_task);
		for (i = 0; i < ncbflooders; i++)

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