HK_TYPE_MAX
for_each_set_bit(type, &housekeeping.flags, HK_TYPE_MAX) {
for_each_set_bit(type, &flags, HK_TYPE_MAX)
struct cpumask __rcu *cpumasks[HK_TYPE_MAX];
for_each_set_bit(type, &iter_flags, HK_TYPE_MAX) {
type = find_first_bit(&iter_flags, HK_TYPE_MAX);
first_cpu = (type == HK_TYPE_MAX || !iter_flags) ? 0 :
for_each_set_bit(type, &iter_flags, HK_TYPE_MAX)