rcu: Four-level hierarchy is no longer experimental

Time to make the four-level-hierarchy setting less scary, so this
commit removes "Experimental" from the boot-time message.  Leave the
message in order to get a heads-up on any possible need to expand to
a five-level hierarchy.

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

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index fb92b6dd9980c2cbf1d88cbbea576cddae866708..70e0fd256cc6b824453cad62d1b1cfdb83df3f5c 100644 (file)
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -68,7 +68,7 @@ static void __init rcu_bootup_announce_oddness(void)
        printk(KERN_INFO "\tAdditional per-CPU info printed with stalls.\n");
 #endif
 #if NUM_RCU_LVL_4 != 0
-       printk(KERN_INFO "\tExperimental four-level hierarchy is enabled.\n");
+       printk(KERN_INFO "\tFour-level hierarchy is enabled.\n");
 #endif
        if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
                printk(KERN_INFO "\tExperimental boot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);