2 files changed, 11 insertions, 2 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 8124d57752b9..956481128e8d 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -55,6 +55,9 @@ struct pid
 	refcount_t count;
 	unsigned int level;
 	spinlock_t lock;
+#ifdef CONFIG_FS_PID
+	unsigned long ino;
+#endif
 	/* lists of tasks that use this pid */
 	struct hlist_head tasks[PIDTYPE_MAX];
 	struct hlist_head inodes;
@@ -66,8 +69,6 @@ struct pid
 
 extern struct pid init_struct_pid;
 
-extern const struct file_operations pidfd_fops;
-
 struct file;
 
 struct pid *pidfd_pid(const struct file *file);
diff --git a/include/linux/pidfs.h b/include/linux/pidfs.h
new file mode 100644
index 000000000000..75bdf9807802
--- /dev/null
+++ b/include/linux/pidfs.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_PID_FS_H
+#define _LINUX_PID_FS_H
+
+struct file *pidfs_alloc_file(struct pid *pid, unsigned int flags);
+void __init pidfs_init(void);
+
+#endif /* _LINUX_PID_FS_H */