to_split 791 tools/perf/util/callchain.c struct callchain_list *to_split, to_split 805 tools/perf/util/callchain.c list_del_range(&to_split->list, old_tail); to_split 806 tools/perf/util/callchain.c new->val.next = &to_split->list; to_split 808 tools/perf/util/callchain.c to_split->list.prev = &new->val;