rcu: Remove redundant levelcnt[] array from rcu_init_one()

The levelcnt[] array is identical to num_rcu_lvl[], so this commit
removes levelcnt[].

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

1 files changed, 3 insertions, 6 deletions

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index df3527744af8..9397a6693d70 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3961,7 +3961,6 @@ static void __init rcu_init_one(struct rcu_state *rsp)
         static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
         static struct lock_class_key rcu_fqs_class[RCU_NUM_LVLS];
 
-        int levelcnt[RCU_NUM_LVLS];             /* # nodes in each level. */
         int levelspread[RCU_NUM_LVLS];          /* kids/node in each level. */
         int cpustride = 1;
         int i;
@@ -3976,18 +3975,16 @@ static void __init rcu_init_one(struct rcu_state *rsp)
 
         /* Initialize the level-tracking arrays. */
 
-        for (i = 0; i < rcu_num_lvls; i++)
-                levelcnt[i] = num_rcu_lvl[i];
         for (i = 1; i < rcu_num_lvls; i++)
-                rsp->level[i] = rsp->level[i - 1] + levelcnt[i - 1];
-        rcu_init_levelspread(levelspread, levelcnt);
+                rsp->level[i] = rsp->level[i - 1] + num_rcu_lvl[i - 1];
+        rcu_init_levelspread(levelspread, num_rcu_lvl);
 
         /* Initialize the elements themselves, starting from the leaves. */
 
         for (i = rcu_num_lvls - 1; i >= 0; i--) {
                 cpustride *= levelspread[i];
                 rnp = rsp->level[i];
-                for (j = 0; j < levelcnt[i]; j++, rnp++) {
+                for (j = 0; j < num_rcu_lvl[i]; j++, rnp++) {
                         raw_spin_lock_init(&ACCESS_PRIVATE(rnp, lock));
                         lockdep_set_class_and_name(&ACCESS_PRIVATE(rnp, lock),
                                                    &rcu_node_class[i], buf[i]);