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-rw-r--r--include/linux/tty.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f6b371a2514e..67d64e6efe7a 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -329,6 +329,13 @@ struct tty_struct {
struct tty_port *port;
};
+/* Each of a tty's open files has private_data pointing to tty_file_private */
+struct tty_file_private {
+ struct tty_struct *tty;
+ struct file *file;
+ struct list_head list;
+};
+
/* tty magic number */
#define TTY_MAGIC 0x5401
@@ -458,6 +465,7 @@ extern void proc_clear_tty(struct task_struct *p);
extern struct tty_struct *get_current_tty(void);
extern void tty_default_fops(struct file_operations *fops);
extern struct tty_struct *alloc_tty_struct(void);
+extern void tty_add_file(struct tty_struct *tty, struct file *file);
extern void free_tty_struct(struct tty_struct *tty);
extern void initialize_tty_struct(struct tty_struct *tty,
struct tty_driver *driver, int idx);
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