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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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12
drivers/usb/serial/io_edgeport.c
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@@ -1458,7 +1458,7 @@ static void edge_throttle(struct tty_struct *tty)
}
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
if (tty->termios.c_cflag & CRTSCTS) {
edge_port->shadowMCR &= ~MCR_RTS;
status = send_cmd_write_uart_register(edge_port, MCR,
edge_port->shadowMCR);
@@ -1497,7 +1497,7 @@ static void edge_unthrottle(struct tty_struct *tty)
return;
}
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
if (tty->termios.c_cflag & CRTSCTS) {
edge_port->shadowMCR |= MCR_RTS;
send_cmd_write_uart_register(edge_port, MCR,
edge_port->shadowMCR);
@@ -1516,9 +1516,9 @@ static void edge_set_termios(struct tty_struct *tty,
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
unsigned int cflag;
cflag = tty->termios->c_cflag;
cflag = tty->termios.c_cflag;
dbg("%s - clfag %08x iflag %08x", __func__,
tty->termios->c_cflag, tty->termios->c_iflag);
tty->termios.c_cflag, tty->termios.c_iflag);
dbg("%s - old clfag %08x old iflag %08x", __func__,
old_termios->c_cflag, old_termios->c_iflag);
@@ -1987,7 +1987,7 @@ static void process_rcvd_status(struct edgeport_serial *edge_serial,
tty = tty_port_tty_get(&edge_port->port->port);
if (tty) {
change_port_settings(tty,
edge_port, tty->termios);
edge_port, &tty->termios);
tty_kref_put(tty);
}
@@ -2570,7 +2570,7 @@ static void change_port_settings(struct tty_struct *tty,
return;
}
cflag = tty->termios->c_cflag;
cflag = tty->termios.c_cflag;
switch (cflag & CSIZE) {
case CS5: