[PATCH 2/4] pid: introduce task_ppid_vnr()

[Oleg Nesterov <oleg@redhat.com>]

for consistency with other task_xid_vnr() helpers.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 fs/pidfs.c          | 2 +-
 include/linux/pid.h | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/pidfs.c b/fs/pidfs.c
index 4625e097e3a0..de5e71c2b49b 100644
--- a/fs/pidfs.c
+++ b/fs/pidfs.c
@@ -361,7 +361,7 @@ static long pidfd_info(struct file *file, unsigned int cmd, unsigned long arg)
 	 * the fields are set correctly, or return ESRCH to avoid providing
 	 * incomplete information. */
 
-	kinfo.ppid = task_ppid_nr_ns(task, NULL);
+	kinfo.ppid = task_ppid_vnr(task);
 	kinfo.tgid = task_tgid_vnr(task);
 	kinfo.pid = task_pid_vnr(task);
 	kinfo.mask |= PIDFD_INFO_PID;
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 453ae6d8a68d..4a733634c556 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -306,6 +306,11 @@ static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_na
 	return pid;
 }
 
+static inline pid_t task_ppid_vnr(const struct task_struct *tsk)
+{
+	return task_ppid_nr_ns(tsk, NULL);
+}
+
 static inline pid_t task_ppid_nr(const struct task_struct *tsk)
 {
 	return task_ppid_nr_ns(tsk, &init_pid_ns);
-- 
2.25.1.362.g51ebf55