parent            200 proc.c           np->parent = curproc;
parent            253 proc.c           wakeup1(curproc->parent);
parent            257 proc.c             if(p->parent == curproc){
parent            258 proc.c               p->parent = initproc;
parent            284 proc.c               if(p->parent != curproc)
parent            294 proc.c                 p->parent = 0;
parent             44 proc.h           struct proc *parent;         // Parent process