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tty: move the termios object into the tty

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This will let us sort out a whole pile of tty related races. The
alternative would be to keep points and refcount the termios objects.
However
1. They are tiny anyway
2. Many devices don't use the stored copies
3. We can remove a pty special case

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Cox
2012-07-14 15:31:47 +01:00
committed by Greg Kroah-Hartman
parent 6d31a88cb2
commit adc8d746ca
65 changed files with 408 additions and 434 deletions
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10
net/irda/ircomm/ircomm_tty_ioctl.c
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@@ -63,7 +63,7 @@ static void ircomm_tty_change_speed(struct ircomm_tty_cb *self,
if (!self->ircomm)
return;
cflag = tty->termios->c_cflag;
cflag = tty->termios.c_cflag;
/* byte size and parity */
switch (cflag & CSIZE) {
@@ -149,12 +149,12 @@ void ircomm_tty_set_termios(struct tty_struct *tty,
struct ktermios *old_termios)
{
struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
unsigned int cflag = tty->termios->c_cflag;
unsigned int cflag = tty->termios.c_cflag;
IRDA_DEBUG(2, "%s()\n", __func__ );
if ((cflag == old_termios->c_cflag) &&
(RELEVANT_IFLAG(tty->termios->c_iflag) ==
(RELEVANT_IFLAG(tty->termios.c_iflag) ==
RELEVANT_IFLAG(old_termios->c_iflag)))
{
return;
@@ -173,7 +173,7 @@ void ircomm_tty_set_termios(struct tty_struct *tty,
if (!(old_termios->c_cflag & CBAUD) &&
(cflag & CBAUD)) {
self->settings.dte |= IRCOMM_DTR;
if (!(tty->termios->c_cflag & CRTSCTS) ||
if (!(tty->termios.c_cflag & CRTSCTS) ||
!test_bit(TTY_THROTTLED, &tty->flags)) {
self->settings.dte |= IRCOMM_RTS;
}
@@ -182,7 +182,7 @@ void ircomm_tty_set_termios(struct tty_struct *tty,
/* Handle turning off CRTSCTS */
if ((old_termios->c_cflag & CRTSCTS) &&
!(tty->termios->c_cflag & CRTSCTS))
!(tty->termios.c_cflag & CRTSCTS))
{
tty->hw_stopped = 0;
ircomm_tty_start(tty);