rcu: Add boot-up check for non-default CONFIG_RCU_FANOUT_LEAF values

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

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 81c4d91fa18a..c9225350d3ed 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -76,6 +76,9 @@ static void __init rcu_bootup_announce_oddness(void)
                 pr_info("\tAdditional per-CPU info printed with stalls.\n");
         if (NUM_RCU_LVL_4 != 0)
                 pr_info("\tFour-level hierarchy is enabled.\n");
+        if (CONFIG_RCU_FANOUT_LEAF != 16)
+                pr_info("\tBuild-time adjustment of leaf fanout to %d.\n",
+                        CONFIG_RCU_FANOUT_LEAF);
         if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
                 pr_info("\tBoot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);
         if (nr_cpu_ids != NR_CPUS)