TTY: move low_latency to tty_port
One point is to have less places where we actually need tty pointer.
The other is that low_latency is bound to buffer processing and
buffers are now in tty_port. So it makes sense to move low_latency to
tty_port too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 31873e4..1bfe97a 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -364,7 +364,7 @@
{
struct tty_bufhead *buf = &tty->port->buf;
unsigned long flags;
- WARN_ON(tty->low_latency);
+ WARN_ON(tty->port->low_latency);
spin_lock_irqsave(&buf->lock, flags);
if (buf->tail != NULL)
@@ -538,7 +538,7 @@
*/
void tty_flush_to_ldisc(struct tty_struct *tty)
{
- if (!tty->low_latency)
+ if (!tty->port->low_latency)
flush_work(&tty->port->buf.work);
}
@@ -547,7 +547,8 @@
* @tty: tty to push
*
* Queue a push of the terminal flip buffers to the line discipline. This
- * function must not be called from IRQ context if tty->low_latency is set.
+ * function must not be called from IRQ context if port->low_latency is
+ * set.
*
* In the event of the queue being busy for flipping the work will be
* held off and retried later.
@@ -565,7 +566,7 @@
buf->tail->commit = buf->tail->used;
spin_unlock_irqrestore(&buf->lock, flags);
- if (tty->low_latency)
+ if (tty->port->low_latency)
flush_to_ldisc(&buf->work);
else
schedule_work(&buf->work);