ns_of_pid
if (ns_of_pid(new_pid) != ns_of_pid(sbi->oz_pgrp)) {
pid = task_pid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
tgid = task_tgid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
ns_of_pid(info->notify_owner));
if (unlikely(!(ns_of_pid(pid)->pid_allocated & PIDNS_ADDING))) {
struct pid_namespace *ns = ns_of_pid(pid);
return ns_of_pid(task_pid(tsk));
struct pid_namespace *p = ns_of_pid(pid);