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[v4,18/25] virtio_scsi: enable VQs early on restore

Message ID 1413114332-626-19-git-send-email-mst-v4@redhat.com
State Not Applicable, archived
Delegated to: David Miller
Headers show

Commit Message

Michael S. Tsirkin Oct. 13, 2014, 7:51 a.m. UTC 
virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after restore returns, virtio scsi violated
this rule on restore by kicking event vq within restore.

To fix, call virtio_device_ready before using event queue.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/scsi/virtio_scsi.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 0642ce3..2b565b3 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -1054,6 +1054,8 @@  static int virtscsi_restore(struct virtio_device *vdev)
 		return err;
 	}
 
+	virtio_device_ready(vdev);
+
 	if (virtio_has_feature(vdev, VIRTIO_SCSI_F_HOTPLUG))
 		virtscsi_kick_event_all(vscsi);