TTY: move tty buffers to tty_port

So this is it. The big step why we did all the work over the past
kernel releases. Now everything is prepared, so nothing protects us
from doing that big step.

           |  |            \  \ nnnn/^l      |  |
           |  |             \  /     /       |  |
           |  '-,.__   =>    \/   ,-`    =>  |  '-,.__
           | O __.´´)        (  .`           | O __.´´)
            ~~~   ~~          ``              ~~~   ~~
The buffers are now in the tty_port structure and we can start
teaching the buffer helpers (insert char/string, flip etc.) to use
tty_port instead of tty_struct all around.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 47e3968df10b..f4e6754525dc 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -512,7 +512,7 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
 static int tty_ldisc_halt(struct tty_struct *tty)
 {
         clear_bit(TTY_LDISC, &tty->flags);
-        return cancel_work_sync(&tty->buf.work);
+        return cancel_work_sync(&tty->port->buf.work);
 }
 
 /**
@@ -525,7 +525,7 @@ static void tty_ldisc_flush_works(struct tty_struct *tty)
 {
         flush_work(&tty->hangup_work);
         flush_work(&tty->SAK_work);
-        flush_work(&tty->buf.work);
+        flush_work(&tty->port->buf.work);
 }
 
 /**
@@ -704,9 +704,9 @@ enable:
         /* Restart the work queue in case no characters kick it off. Safe if
            already running */
         if (work)
-                schedule_work(&tty->buf.work);
+                schedule_work(&tty->port->buf.work);
         if (o_work)
-                schedule_work(&o_tty->buf.work);
+                schedule_work(&o_tty->port->buf.work);
         mutex_unlock(&tty->ldisc_mutex);
         tty_unlock(tty);
         return retval;
@@ -817,7 +817,7 @@ void tty_ldisc_hangup(struct tty_struct *tty)
          */
         clear_bit(TTY_LDISC, &tty->flags);
         tty_unlock(tty);
-        cancel_work_sync(&tty->buf.work);
+        cancel_work_sync(&tty->port->buf.work);
         mutex_unlock(&tty->ldisc_mutex);
 retry:
         tty_lock(tty);