From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heinz Graalfs Subject: [PATCH v3 RFC 1/4] virtio: add surprize_removal to virtio_device Date: Wed, 27 Nov 2013 11:32:37 +0100 Message-ID: <1385548360-31943-2-git-send-email-graalfs@linux.vnet.ibm.com> References: <1385548360-31943-1-git-send-email-graalfs@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1385548360-31943-1-git-send-email-graalfs@linux.vnet.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: mst@redhat.com, virtualization@lists.linux-foundation.org Cc: borntraeger@de.ibm.com List-Id: virtualization@lists.linuxfoundation.org Add new entry surprize_removal to struct virtio_device. When a virtio transport driver is notified about a lost device it should set surprize_removal to true. A backend driver can test this flag in order to perform specific actions that might be appropriate wrt the device loss. Signed-off-by: Heinz Graalfs --- drivers/virtio/virtio.c | 1 + include/linux/virtio.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index ee59b74..290d1e2 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -115,6 +115,7 @@ static int virtio_dev_probe(struct device *_d) /* We have a driver! */ add_status(dev, VIRTIO_CONFIG_S_DRIVER); + dev->surprize_removal = false; /* Figure out what features the device supports. */ device_features = dev->config->get_features(dev); diff --git a/include/linux/virtio.h b/include/linux/virtio.h index f15f6e7..131404a 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -98,6 +98,7 @@ struct virtio_device { struct list_head vqs; /* Note that this is a Linux set_bit-style bitmap. */ unsigned long features[1]; + bool surprize_removal; void *priv; }; -- 1.8.3.1