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| author | Amit Shah <amit.shah@redhat.com> | 2010-09-02 18:47:53 +0530 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2010-10-21 17:44:04 +1030 |
| commit | 55f6bcce3691f68476a530daa6666b66c43420a8 (patch) | |
| tree | fa3b524b4be9b8d18509cb85095846f9ee088f15 /drivers/char/virtio_console.c | |
| parent | 3eae0adea949d8fdd8fa3e5301192901219d2c64 (diff) | |
| download | lwn-55f6bcce3691f68476a530daa6666b66c43420a8.tar.gz lwn-55f6bcce3691f68476a530daa6666b66c43420a8.zip | |
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/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index c4ca43694233..6d5c579b1693 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(); } |