From 84427eaef1fb91704c7112bdb598c810003b99f3 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 10 Jan 2008 12:52:04 -0800 Subject: remove task_ppid_nr_ns task_ppid_nr_ns is called in three places. One of these should never have called it. In the other two, using it broke the existing semantics. This was presumably accidental. If the function had not been there, it would have been much more obvious to the eye that those patches were changing the behavior. We don't need this function. In task_state, the pid of the ptracer is not the ppid of the ptracer. In do_task_stat, ppid is the tgid of the real_parent, not its pid. I also moved the call outside of lock_task_sighand, since it doesn't need it. In sys_getppid, ppid is the tgid of the real_parent, not its pid. Signed-off-by: Roland McGrath Signed-off-by: Linus Torvalds --- include/linux/sched.h | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'include/linux/sched.h') diff --git a/include/linux/sched.h b/include/linux/sched.h index ac3d496fbd20..cc14656f8682 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1255,13 +1255,6 @@ struct pid_namespace; * * set_task_vxid() : assigns a virtual id to a task; * - * task_ppid_nr_ns() : the parent's id as seen from the namespace specified. - * the result depends on the namespace and whether the - * task in question is the namespace's init. e.g. for the - * namespace's init this will return 0 when called from - * the namespace of this init, or appropriate id otherwise. - * - * * see also pid_nr() etc in include/linux/pid.h */ @@ -1317,12 +1310,6 @@ static inline pid_t task_session_vnr(struct task_struct *tsk) } -static inline pid_t task_ppid_nr_ns(struct task_struct *tsk, - struct pid_namespace *ns) -{ - return pid_nr_ns(task_pid(rcu_dereference(tsk->real_parent)), ns); -} - /** * pid_alive - check that a task structure is not stale * @p: Task structure to be checked. -- cgit v1.2.2