diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2015-10-10 23:00:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-18 07:11:29 +0300 |
| commit | cc2aaabfd6d6335e2156781ca67715b4de17f993 (patch) | |
| tree | abbecf796995365df77b22f307b2e3ac6a026066 | |
| parent | b140dfe622ca23bad6755ce7cd7de2245ef2b68d (diff) | |
| download | linux-cc2aaabfd6d6335e2156781ca67715b4de17f993.tar.xz | |
tty: Remove tty_port::close_wait
With the removal of tty_wait_until_sent_from_close(), tty drivers
no longer wait during open for parallel closes to complete (instead,
the tty core waits before calling the driver open() method). Thus,
the close_wait waitqueue is no longer used for waiting.
Remove struct tty_port::close_wait.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/rocket.c | 1 | ||||
| -rw-r--r-- | drivers/tty/serial/68328serial.c | 1 | ||||
| -rw-r--r-- | drivers/tty/serial/crisv10.c | 1 | ||||
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 1 | ||||
| -rw-r--r-- | drivers/tty/tty_port.c | 2 | ||||
| -rw-r--r-- | include/linux/tty.h | 1 |
6 files changed, 0 insertions, 7 deletions
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c index 69c72d1aa627..802eac7e561b 100644 --- a/drivers/tty/rocket.c +++ b/drivers/tty/rocket.c @@ -1049,7 +1049,6 @@ static void rp_close(struct tty_struct *tty, struct file *filp) mutex_unlock(&port->mutex); tty_port_tty_set(port, NULL); - wake_up_interruptible(&port->close_wait); complete_all(&info->close_wait); atomic_dec(&rp_num_ports_open); diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c index 9ba0c9333078..0140ba4aacde 100644 --- a/drivers/tty/serial/68328serial.c +++ b/drivers/tty/serial/68328serial.c @@ -1071,7 +1071,6 @@ static void rs_close(struct tty_struct *tty, struct file * filp) wake_up_interruptible(&port->open_wait); } port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); local_irq_restore(flags); } diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c index 06f4fe928dcd..f13f2ebd215b 100644 --- a/drivers/tty/serial/crisv10.c +++ b/drivers/tty/serial/crisv10.c @@ -3655,7 +3655,6 @@ rs_close(struct tty_struct *tty, struct file * filp) wake_up_interruptible(&info->port.open_wait); } info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->port.close_wait); local_irq_restore(flags); /* port closed */ diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index df4271ae7414..def5199ca004 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1437,7 +1437,6 @@ static void uart_close(struct tty_struct *tty, struct file *filp) clear_bit(ASYNCB_CLOSING, &port->flags); spin_unlock_irq(&port->lock); wake_up_interruptible(&port->open_wait); - wake_up_interruptible(&port->close_wait); mutex_unlock(&port->mutex); diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 0e1cf0495fb9..e04a8cfb16f7 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -22,7 +22,6 @@ void tty_port_init(struct tty_port *port) memset(port, 0, sizeof(*port)); tty_buffer_init(port); init_waitqueue_head(&port->open_wait); - init_waitqueue_head(&port->close_wait); init_waitqueue_head(&port->delta_msr_wait); mutex_init(&port->mutex); mutex_init(&port->buf_mutex); @@ -520,7 +519,6 @@ void tty_port_close_end(struct tty_port *port, struct tty_struct *tty) wake_up_interruptible(&port->open_wait); } port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); spin_unlock_irqrestore(&port->lock, flags); } EXPORT_SYMBOL(tty_port_close_end); diff --git a/include/linux/tty.h b/include/linux/tty.h index 614c8224c32f..090ce2a52262 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -227,7 +227,6 @@ struct tty_port { int blocked_open; /* Waiting to open */ int count; /* Usage count */ wait_queue_head_t open_wait; /* Open waiters */ - wait_queue_head_t close_wait; /* Close waiters */ wait_queue_head_t delta_msr_wait; /* Modem status change */ unsigned long flags; /* TTY flags ASY_*/ unsigned char console:1, /* port is a console */ |