Documentation: move dnotify.txt to filesystems/

[linux-2.6] / kernel / pid.c

diff --git a/kernel/pid.c b/kernel/pid.c
index bed9e7f80a50cee36e09c630c02688edd6b97624..3b30bccdfcdc92def5dcb4313d4606bc58d6cb46 100644 (file)
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -302,6 +302,18 @@ struct pid * fastcall find_pid_ns(int nr, struct pid_namespace *ns)
 }
 EXPORT_SYMBOL_GPL(find_pid_ns);
 
+struct pid *find_vpid(int nr)
+{
+       return find_pid_ns(nr, current->nsproxy->pid_ns);
+}
+EXPORT_SYMBOL_GPL(find_vpid);
+
+struct pid *find_pid(int nr)
+{
+       return find_pid_ns(nr, &init_pid_ns);
+}
+EXPORT_SYMBOL_GPL(find_pid);
+
 /*
  * attach_pid() must be called with the tasklist_lock write-held.
  */
@@ -356,6 +368,7 @@ struct task_struct * fastcall pid_task(struct pid *pid, enum pid_type type)
        }
        return result;
 }
+EXPORT_SYMBOL(pid_task);
 
 /*
  * Must be called under rcu_read_lock() or with tasklist_lock read-held.
@@ -431,6 +444,30 @@ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
        return nr;
 }
 
+pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+       return pid_nr_ns(task_pid(tsk), ns);
+}
+EXPORT_SYMBOL(task_pid_nr_ns);
+
+pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+       return pid_nr_ns(task_tgid(tsk), ns);
+}
+EXPORT_SYMBOL(task_tgid_nr_ns);
+
+pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+       return pid_nr_ns(task_pgrp(tsk), ns);
+}
+EXPORT_SYMBOL(task_pgrp_nr_ns);
+
+pid_t task_session_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+       return pid_nr_ns(task_session(tsk), ns);
+}
+EXPORT_SYMBOL(task_session_nr_ns);
+
 /*
  * Used by proc to find the first pid that is greater then or equal to nr.
  *
@@ -501,6 +538,7 @@ err_alloc:
        return NULL;
 }
 
+#ifdef CONFIG_PID_NS
 static struct pid_namespace *create_pid_namespace(int level)
 {
        struct pid_namespace *ns;
@@ -585,6 +623,7 @@ void free_pid_ns(struct kref *kref)
        if (parent != NULL)
                put_pid_ns(parent);
 }
+#endif /* CONFIG_PID_NS */
 
 void zap_pid_ns_processes(struct pid_namespace *pid_ns)
 {