1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
new file mode 100644
index 000000000..45f746a48
--- /dev/null
+++ b/include/linux/devpts_fs.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/include/linux/devpts_fs.h
+ *
+ *  Copyright 1998-2004 H. Peter Anvin -- All Rights Reserved
+ *
+ * ------------------------------------------------------------------------- */
+
+#ifndef _LINUX_DEVPTS_FS_H
+#define _LINUX_DEVPTS_FS_H
+
+#include <linux/errno.h>
+
+#ifdef CONFIG_UNIX98_PTYS
+
+struct pts_fs_info;
+
+struct vfsmount *devpts_mntget(struct file *, struct pts_fs_info *);
+struct pts_fs_info *devpts_acquire(struct file *);
+void devpts_release(struct pts_fs_info *);
+
+int devpts_new_index(struct pts_fs_info *);
+void devpts_kill_index(struct pts_fs_info *, int);
+
+/* mknod in devpts */
+struct dentry *devpts_pty_new(struct pts_fs_info *, int, void *);
+/* get private structure */
+void *devpts_get_priv(struct dentry *);
+/* unlink */
+void devpts_pty_kill(struct dentry *);
+
+/* in pty.c */
+int ptm_open_peer(struct file *master, struct tty_struct *tty, int flags);
+
+#else
+static inline int
+ptm_open_peer(struct file *master, struct tty_struct *tty, int flags)
+{
+	return -EIO;
+}
+#endif
+
+
+#endif /* _LINUX_DEVPTS_FS_H */