X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fn_tty.c;h=b3d4ccc33a47e777d1a391ae9a85bde2f450051e;hb=213b8a9af600316902e08e010fbcd216e42e41f7;hp=b9371d5bf7906b48d4b340c5a8756c3fa132f516;hpb=2a2ed2db353d949c06b6ef8b6913f65b39111eab;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index b9371d5bf79..b3d4ccc33a4 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -579,8 +579,8 @@ static void eraser(unsigned char c, struct tty_struct *tty)
  
 static inline void isig(int sig, struct tty_struct *tty, int flush)
 {
-	if (tty->pgrp > 0)
-		kill_pg(tty->pgrp, sig, 1);
+	if (tty->pgrp)
+		kill_pgrp(tty->pgrp, sig, 1);
 	if (flush || !L_NOFLSH(tty)) {
 		n_tty_flush_buffer(tty);
 		if (tty->driver->flush_buffer)
@@ -994,7 +994,7 @@ int is_ignored(int sig)
  *	when the ldisc is closed.
  */
  
-static void n_tty_set_termios(struct tty_struct *tty, struct termios * old)
+static void n_tty_set_termios(struct tty_struct *tty, struct ktermios * old)
 {
 	if (!tty)
 		return;
@@ -1132,7 +1132,7 @@ static inline int input_available_p(struct tty_struct *tty, int amt)
  *	buffer, and once to drain the space from the (physical) beginning of
  *	the buffer to head pointer.
  *
- *	Called under the tty->atomic_read_lock sem and with TTY_DONT_FLIP set
+ *	Called under the tty->atomic_read_lock sem
  *
  */
  
@@ -1151,7 +1151,6 @@ static int copy_from_read_buf(struct tty_struct *tty,
 	n = min(*nr, n);
 	spin_unlock_irqrestore(&tty->read_lock, flags);
 	if (n) {
-		mb();
 		retval = copy_to_user(*b, &tty->read_buf[tty->read_tail], n);
 		n -= retval;
 		spin_lock_irqsave(&tty->read_lock, flags);
@@ -1185,13 +1184,13 @@ static int job_control(struct tty_struct *tty, struct file *file)
 	/* don't stop on /dev/console */
 	if (file->f_op->write != redirected_tty_write &&
 	    current->signal->tty == tty) {
-		if (tty->pgrp <= 0)
-			printk("read_chan: tty->pgrp <= 0!\n");
-		else if (process_group(current) != tty->pgrp) {
+		if (!tty->pgrp)
+			printk("read_chan: no tty->pgrp!\n");
+		else if (task_pgrp(current) != tty->pgrp) {
 			if (is_ignored(SIGTTIN) ||
-			    is_orphaned_pgrp(process_group(current)))
+			    is_current_pgrp_orphaned())
 				return -EIO;
-			kill_pg(process_group(current), SIGTTIN, 1);
+			kill_pgrp(task_pgrp(current), SIGTTIN, 1);
 			return -ERESTARTSYS;
 		}
 	}
@@ -1271,7 +1270,6 @@ do_it_again:
 	}
 
 	add_wait_queue(&tty->read_wait, &wait);
-	set_bit(TTY_DONT_FLIP, &tty->flags);
 	while (nr) {
 		/* First test for status change. */
 		if (tty->packet && tty->link->ctrl_status) {
@@ -1315,9 +1313,7 @@ do_it_again:
 				break;
 			}
 			n_tty_set_room(tty);
-			clear_bit(TTY_DONT_FLIP, &tty->flags);
 			timeout = schedule_timeout(timeout);
-			set_bit(TTY_DONT_FLIP, &tty->flags);
 			continue;
 		}
 		__set_current_state(TASK_RUNNING);
@@ -1394,7 +1390,6 @@ do_it_again:
 		if (time)
 			timeout = time;
 	}
-	clear_bit(TTY_DONT_FLIP, &tty->flags);
 	mutex_unlock(&tty->atomic_read_lock);
 	remove_wait_queue(&tty->read_wait, &wait);
 
@@ -1549,21 +1544,18 @@ static unsigned int normal_poll(struct tty_struct * tty, struct file * file, pol
 }
 
 struct tty_ldisc tty_ldisc_N_TTY = {
-	TTY_LDISC_MAGIC,	/* magic */
-	"n_tty",		/* name */
-	0,			/* num */
-	0,			/* flags */
-	n_tty_open,		/* open */
-	n_tty_close,		/* close */
-	n_tty_flush_buffer,	/* flush_buffer */
-	n_tty_chars_in_buffer,	/* chars_in_buffer */
-	read_chan,		/* read */
-	write_chan,		/* write */
-	n_tty_ioctl,		/* ioctl */
-	n_tty_set_termios,	/* set_termios */
-	normal_poll,		/* poll */
-	NULL,			/* hangup */
-	n_tty_receive_buf,	/* receive_buf */
-	n_tty_write_wakeup	/* write_wakeup */
+	.magic           = TTY_LDISC_MAGIC,
+	.name            = "n_tty",
+	.open            = n_tty_open,
+	.close           = n_tty_close,
+	.flush_buffer    = n_tty_flush_buffer,
+	.chars_in_buffer = n_tty_chars_in_buffer,
+	.read            = read_chan,
+	.write           = write_chan,
+	.ioctl           = n_tty_ioctl,
+	.set_termios     = n_tty_set_termios,
+	.poll            = normal_poll,
+	.receive_buf     = n_tty_receive_buf,
+	.write_wakeup    = n_tty_write_wakeup
 };