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

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

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 81c4d91..c922535 100644 (file)
--- 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)