pid.c (c1144d29f405ce1f4e6ede6482beb3d0d09750c6) pid.c (7a36094d61bfe9843de5484ff0140227983ac5d5)
1/*
2 * Generic pidhash and scalable, time-bounded PID allocator
3 *
4 * (C) 2002-2003 Nadia Yvette Chambers, IBM
5 * (C) 2004 Nadia Yvette Chambers, Oracle
6 * (C) 2002-2004 Ingo Molnar, Red Hat
7 *
8 * pid-structures are backing objects for tasks sharing a given ID to chain

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416 struct pid_namespace *ns)
417{
418 pid_t nr = 0;
419
420 rcu_read_lock();
421 if (!ns)
422 ns = task_active_pid_ns(current);
423 if (likely(pid_alive(task))) {
1/*
2 * Generic pidhash and scalable, time-bounded PID allocator
3 *
4 * (C) 2002-2003 Nadia Yvette Chambers, IBM
5 * (C) 2004 Nadia Yvette Chambers, Oracle
6 * (C) 2002-2004 Ingo Molnar, Red Hat
7 *
8 * pid-structures are backing objects for tasks sharing a given ID to chain

--- 407 unchanged lines hidden (view full) ---

416 struct pid_namespace *ns)
417{
418 pid_t nr = 0;
419
420 rcu_read_lock();
421 if (!ns)
422 ns = task_active_pid_ns(current);
423 if (likely(pid_alive(task))) {
424 if (type != PIDTYPE_PID) {
425 if (type == __PIDTYPE_TGID)
426 type = PIDTYPE_PID;
427
428 task = task->group_leader;
429 }
430 nr = pid_nr_ns(rcu_dereference(task->pids[type].pid), ns);
424 struct pid *pid;
425 if (type == PIDTYPE_PID)
426 pid = task_pid(task);
427 else if (type == __PIDTYPE_TGID)
428 pid = task_tgid(task);
429 else
430 pid = rcu_dereference(task->group_leader->pids[type].pid);
431 nr = pid_nr_ns(pid, ns);
431 }
432 rcu_read_unlock();
433
434 return nr;
435}
436EXPORT_SYMBOL(__task_pid_nr_ns);
437
438struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)

--- 32 unchanged lines hidden --- 		432 }
433 rcu_read_unlock();
434
435 return nr;
436}
437EXPORT_SYMBOL(__task_pid_nr_ns);
438
439struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)

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