leaf_node_cpu_bit
rdp->grpmask = leaf_node_cpu_bit(rdp->mynode, cpu);
mask = leaf_node_cpu_bit(rnp, cpu);
mask = leaf_node_cpu_bit(rnp, cpu);
if (!(data_race(rnp->qsmask) & leaf_node_cpu_bit(rnp, cpu)))
if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu)) {
if (rnp->qsmask & leaf_node_cpu_bit(rnp, cpu)) {