> how does this work? Like this: struct thread { // Entry in the list of threads of the containing process list_node process_entry; // Ent

> how does this work? Like this: struct thread { // Entry in the list of threads of the containing process list_node process_entry; // Entry in this thread's scheduling queue list_node sched_entry; // ... }; Each struct thread is linked in two lists. When we need to get from a list_node * to the enclosing struct thread, we know from the context which list is being inspected, so we know which one of process_entry or sched_entry to consider for offsetting the pointer.