p_ppid           1211 kern/kern_sysctl.c 		ki->p_ppid = p->p_pptr->p_pid;
p_ppid           1213 kern/kern_sysctl.c 		ki->p_ppid = 0;
p_ppid            370 sys/sysctl.h   	int32_t	p_ppid;			/* PID_T: Parent process id */