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-rw-r--r--include/linux/tty.h9
-rw-r--r--include/linux/tty_ldisc.h7
2 files changed, 10 insertions, 6 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 324a3b231d40..013711ea7385 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -185,6 +185,7 @@ struct tty_struct {
struct tty_driver *driver;
const struct tty_operations *ops;
int index;
+ /* The ldisc objects are protected by tty_ldisc_lock at the moment */
struct tty_ldisc ldisc;
struct mutex termios_mutex;
spinlock_t ctrl_lock;
@@ -289,7 +290,7 @@ extern void tty_wait_until_sent(struct tty_struct * tty, long timeout);
extern int tty_check_change(struct tty_struct * tty);
extern void stop_tty(struct tty_struct * tty);
extern void start_tty(struct tty_struct * tty);
-extern int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc);
+extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
extern int tty_unregister_ldisc(int disc);
extern int tty_register_driver(struct tty_driver *driver);
extern int tty_unregister_driver(struct tty_driver *driver);
@@ -330,9 +331,7 @@ extern int tty_termios_hw_change(struct ktermios *a, struct ktermios *b);
extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
extern void tty_ldisc_deref(struct tty_ldisc *);
extern struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *);
-
-extern struct tty_ldisc *tty_ldisc_get(int);
-extern void tty_ldisc_put(int);
+extern const struct file_operations tty_ldiscs_proc_fops;
extern void tty_wakeup(struct tty_struct *tty);
extern void tty_ldisc_flush(struct tty_struct *tty);
@@ -354,7 +353,7 @@ extern int tty_write_lock(struct tty_struct *tty, int ndelay);
/* n_tty.c */
-extern struct tty_ldisc tty_ldisc_N_TTY;
+extern struct tty_ldisc_ops tty_ldisc_N_TTY;
/* tty_audit.c */
#ifdef CONFIG_AUDIT
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 6226504d9108..40f38d896777 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -104,7 +104,7 @@
#include <linux/fs.h>
#include <linux/wait.h>
-struct tty_ldisc {
+struct tty_ldisc_ops {
int magic;
char *name;
int num;
@@ -142,6 +142,11 @@ struct tty_ldisc {
int refcount;
};
+struct tty_ldisc {
+ struct tty_ldisc_ops *ops;
+ int refcount;
+};
+
#define TTY_LDISC_MAGIC 0x5403
#define LDISC_FLAG_DEFINED 0x00000001