[PATCH tip/core/rcu 11/17] rcutorture: Print GP age upon forward-progress failure

[Paul E. McKenney]

Signed-off-by: Paul E. McKenney <paul...@linux.ibm.com>
---
 kernel/rcu/tree.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index cef7d9867508..95a3825b1b19 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2679,6 +2679,8 @@ 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();
-- 
2.17.1