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-rw-r--r--drivers/tty/pty.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a6d5164c33a9..26dcb3b60fb9 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -742,6 +742,11 @@ static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
}
}
+static void pty_show_fdinfo(struct tty_struct *tty, struct seq_file *m)
+{
+ seq_printf(m, "tty-index:\t%d\n", tty->index);
+}
+
static const struct tty_operations ptm_unix98_ops = {
.lookup = ptm_unix98_lookup,
.install = pty_unix98_install,
@@ -756,7 +761,8 @@ static const struct tty_operations ptm_unix98_ops = {
.ioctl = pty_unix98_ioctl,
.compat_ioctl = pty_unix98_compat_ioctl,
.resize = pty_resize,
- .cleanup = pty_cleanup
+ .cleanup = pty_cleanup,
+ .show_fdinfo = pty_show_fdinfo,
};
static const struct tty_operations pty_unix98_ops = {