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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-03-15 12:59:17 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-04-18 11:38:21 -0700 |
| commit | 41f5c63178b7ca3d775638710b752b81b433fc86 (patch) | |
| tree | 26bbb4733721c7f935ab295fe9157206b53cdaa6 /kernel/rcu | |
| parent | srcu: Move rcu_init_levelspread() to rcu_tree_node.h (diff) | |
| download | linux-dev-41f5c63178b7ca3d775638710b752b81b433fc86.tar.xz linux-dev-41f5c63178b7ca3d775638710b752b81b433fc86.zip | |
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>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 9 |
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]); |