rcu: Convert "1UL << x" to "BIT(x)"
This commit saves a few characters by converting "1UL << x" to "BIT(x)".
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 92346ab..e778fd5 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3582,7 +3582,7 @@ static void __init rcu_init_one(void)
rnp->parent = NULL;
} else {
rnp->grpnum = j % levelspread[i - 1];
- rnp->grpmask = 1UL << rnp->grpnum;
+ rnp->grpmask = BIT(rnp->grpnum);
rnp->parent = rcu_state.level[i - 1] +
j / levelspread[i - 1];
}
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 8f053bb..5e561f1 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -168,7 +168,7 @@ struct rcu_node {
* are indexed relative to this interval rather than the global CPU ID space.
* This generates the bit for a CPU in node-local masks.
*/
-#define leaf_node_cpu_bit(rnp, cpu) (1UL << ((cpu) - (rnp)->grplo))
+#define leaf_node_cpu_bit(rnp, cpu) (BIT((cpu) - (rnp)->grplo))
/*
* Union to allow "aggregate OR" operation on the need for a quiescent