hlist_nulls_for_each_entry_safe
hlist_nulls_for_each_entry_safe(l, n, head, hash_node) {
hlist_nulls_for_each_entry_safe(l, n, head, hash_node) {
hlist_nulls_for_each_entry_safe(elem, n, head, hash_node) {
hlist_nulls_for_each_entry_safe(l, n, head, hash_node) {
hlist_nulls_for_each_entry_safe(h, n, &cnet->ecache.dying_list, hnnode) {
hlist_nulls_for_each_entry_safe(h, n, &evicted_list, hnnode) {