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authorAmit Shah <amit.shah@redhat.com>2010-09-02 18:47:53 +0530
committerRusty Russell <rusty@rustcorp.com.au>2010-10-21 17:44:04 +1030
commit55f6bcce3691f68476a530daa6666b66c43420a8 (patch)
treefa3b524b4be9b8d18509cb85095846f9ee088f15 /drivers/char
parent3eae0adea949d8fdd8fa3e5301192901219d2c64 (diff)
virtio: console: Send SIGIO on new data arrival on ports
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 <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/virtio_console.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index c4ca4369423..6d5c579b169 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1483,6 +1483,9 @@ 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();
}