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>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index df3527744af8ccde94ca529d2a6e4513a3a9f8fc..9397a6693d70ded732e16d541adf743547e0d056 100644 (file)
--- 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]);