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

From: Oleg Nesterov
Date: Sun Aug 10 2025 - 13:37:48 EST


for consistency with other task_xid_vnr() helpers.

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
---
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