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 <graalfs@xxxxxxxxxxxxxxxxxx>
---
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
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