Subject: virtio: console: Send SIGIO on new data arrival on ports Date: Thu, 2 Sep 2010 18:47:53 +0530 From: Amit Shah Send a SIGIO signal when new data arrives on a port. This is sent only when the process has requested for the signal to be sent using fcntl(). Signed-off-by: Amit Shah Signed-off-by: Rusty Russell --- drivers/char/virtio_console.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index afbbc54..a750d2b 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1468,6 +1468,9 @@ static void in_intr(struct virtqueue *vq) wake_up_interruptible(&port->waitqueue); + /* Send a SIGIO indicating new data in case the process asked for it */ + send_sigio_to_port(port); + if (is_console_port(port) && hvc_poll(port->cons.hvc)) hvc_kick(); }