1 files changed, 25 insertions, 20 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index d6f05292e45..969daca2107 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -5,24 +5,6 @@
  * 'tty.h' defines some structures used by tty_io.c and some defines.
  */
 
-#ifdef __KERNEL__
-#include <linux/fs.h>
-#include <linux/major.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_ldisc.h>
-#include <linux/mutex.h>
-
-#include <asm/system.h>
-
-
-/*
- * (Note: the *_driver.minor_start values 1, 64, 128, 192 are
- * hardcoded at present.)
- */
-#define NR_UNIX98_PTY_DEFAULT   4096      /* Default maximum for Unix98 ptys */
-#define NR_UNIX98_PTY_MAX       (1 << MINORBITS) /* Absolute limit */
 #define NR_LDISCS               30
 
 /* line disciplines */
@@ -53,6 +35,25 @@
 #define N_TRACESINK     23      /* Trace data routing for MIPI P1149.7 */
 #define N_TRACEROUTER   24      /* Trace data routing for MIPI P1149.7 */
 
+#ifdef __KERNEL__
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/termios.h>
+#include <linux/workqueue.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_ldisc.h>
+#include <linux/mutex.h>
+
+#include <asm/system.h>
+
+
+/*
+ * (Note: the *_driver.minor_start values 1, 64, 128, 192 are
+ * hardcoded at present.)
+ */
+#define NR_UNIX98_PTY_DEFAULT   4096      /* Default maximum for Unix98 ptys */
+#define NR_UNIX98_PTY_MAX       (1 << MINORBITS) /* Absolute limit */
+
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as
  * a c_cc[] character, but indicates that a particular special character
@@ -294,7 +295,7 @@ struct tty_struct {
         void *driver_data;
         struct list_head tty_files;
 
-#define N_TTY_BUF_SIZE 4096
+#define N_TTY_BUF_SIZE 32768
 
         /*
          * The following is data for the N_TTY line discipline.  For
@@ -420,6 +421,8 @@ extern void tty_driver_flush_buffer(struct tty_struct *tty);
 extern void tty_throttle(struct tty_struct *tty);
 extern void tty_unthrottle(struct tty_struct *tty);
 extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws);
+extern void tty_driver_remove_tty(struct tty_driver *driver,
+                                  struct tty_struct *tty);
 extern void tty_shutdown(struct tty_struct *tty);
 extern void tty_free_termios(struct tty_struct *tty);
 extern int is_current_pgrp_orphaned(void);
@@ -470,7 +473,9 @@ 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 int tty_add_file(struct tty_struct *tty, struct file *file);
+extern int tty_alloc_file(struct file *file);
+extern void tty_add_file(struct tty_struct *tty, struct file *file);
+extern void tty_free_file(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);