rcutorture: WARN_ON_ONCE(1) when detecting an error

this makes it easier for automated tests to pick up such failures.

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 0334b6a8baca35e007c0d509844dc68f64749007..0ca7e9b290b06d55fabdc82ff8c44e18e9bd1ccd 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -687,6 +687,7 @@ rcu_torture_printk(char *page)
        if (i > 1) {
                cnt += sprintf(&page[cnt], "!!! ");
                atomic_inc(&n_rcu_torture_error);
+               WARN_ON_ONCE(1);
        }
        cnt += sprintf(&page[cnt], "Reader Pipe: ");
        for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)