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authorPeter Hurley <peter@hurleysoftware.com>2015-10-10 23:00:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-18 07:11:29 +0300
commitcc2aaabfd6d6335e2156781ca67715b4de17f993 (patch)
treeabbecf796995365df77b22f307b2e3ac6a026066 /drivers/tty
parentb140dfe622ca23bad6755ce7cd7de2245ef2b68d (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/rocket.c1
-rw-r--r--drivers/tty/serial/68328serial.c1
-rw-r--r--drivers/tty/serial/crisv10.c1
-rw-r--r--drivers/tty/serial/serial_core.c1
-rw-r--r--drivers/tty/tty_port.c2
5 files changed, 0 insertions, 6 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);