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Commit 41f5c631 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

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: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 2b34c43c

kernel/rcu/tree.c

+3 −6
Original line number Diff line number Diff line
@@ -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]);