sched: cpu accounting controller (V2)

[linux-2.6] / kernel / pid.c

diff --git a/kernel/pid.c b/kernel/pid.c
index 73a60e265f524772c49614b58dc58b09f68eccb2..f815455431bff3c95855a674086e6c1d8322a7c4 100644 (file)
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -263,7 +263,6 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 
        get_pid_ns(ns);
        pid->level = ns->level;
-       pid->nr = pid->numbers[0].nr;
        atomic_set(&pid->count, 1);
        for (type = 0; type < PIDTYPE_MAX; ++type)
                INIT_HLIST_HEAD(&pid->tasks[type]);
@@ -303,6 +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.
  */
@@ -432,6 +443,30 @@ 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.
  *
@@ -502,6 +537,7 @@ err_alloc:
        return NULL;
 }
 
+#ifdef CONFIG_PID_NS
 static struct pid_namespace *create_pid_namespace(int level)
 {
        struct pid_namespace *ns;
@@ -586,6 +622,7 @@ 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)
 {