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-rw-r--r--include/linux/pid.h14
-rw-r--r--include/linux/sched.h5
-rw-r--r--kernel/pid.c6
3 files changed, 11 insertions, 14 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 061abb6c079..b91f4732dc1 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -127,9 +127,8 @@ extern void FASTCALL(free_pid(struct pid *pid));
* the helpers to get the pid's id seen from different namespaces
*
* pid_nr() : global id, i.e. the id seen from the init namespace;
- * pid_vnr() : virtual id, i.e. the id seen from the namespace this pid
- * belongs to. this only makes sence when called in the
- * context of the task that belongs to the same namespace;
+ * pid_vnr() : virtual id, i.e. the id seen from the pid namespace of
+ * current.
* pid_nr_ns() : id seen from the ns specified.
*
* see also task_xid_nr() etc in include/linux/sched.h
@@ -144,14 +143,7 @@ static inline pid_t pid_nr(struct pid *pid)
}
pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
-
-static inline pid_t pid_vnr(struct pid *pid)
-{
- pid_t nr = 0;
- if (pid)
- nr = pid->numbers[pid->level].nr;
- return nr;
-}
+pid_t pid_vnr(struct pid *pid);
#define do_each_pid_task(pid, type, task) \
do { \
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d1c9b7f1d51..3deb6e5d309 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1332,9 +1332,8 @@ struct pid_namespace;
* from various namespaces
*
* task_xid_nr() : global id, i.e. the id seen from the init namespace;
- * task_xid_vnr() : virtual id, i.e. the id seen from the namespace the task
- * belongs to. this only makes sence when called in the
- * context of the task that belongs to the same namespace;
+ * task_xid_vnr() : virtual id, i.e. the id seen from the pid namespace of
+ * current.
* task_xid_nr_ns() : id seen from the ns specified;
*
* set_task_vxid() : assigns a virtual id to a task;
diff --git a/kernel/pid.c b/kernel/pid.c
index 939746fb4ce..a32859c4a3c 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -443,6 +443,12 @@ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
return nr;
}
+pid_t pid_vnr(struct pid *pid)
+{
+ return pid_nr_ns(pid, current->nsproxy->pid_ns);
+}
+EXPORT_SYMBOL_GPL(pid_vnr);
+
pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return pid_nr_ns(task_pid(tsk), ns);