rcutorture: Print GP age upon forward-progress failure

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 90a67c75a447..f91631541965 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2682,6 +2682,8 @@ void rcu_fwd_progress_check(unsigned long j)
         struct rcu_data *rdp;
 
         if (rcu_gp_in_progress()) {
+                pr_info("%s: GP age %lu jiffies\n",
+                        __func__, jiffies - rcu_state.gp_start);
                 show_rcu_gp_kthreads();
         } else {
                 preempt_disable();