Stop all the virt queues when device is going away. This will ensure that
no new requests are submitted to virtqueue and and request will end with
error -ENOTCONN.
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
fs/fuse/virtio_fs.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index f68a25ca9e9d..90e7b2f345e5 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -493,10 +493,24 @@ static int virtio_fs_probe(struct virtio_device *vdev)
return ret;
}
+static void virtio_fs_stop_all_queues(struct virtio_fs *fs)
+{
+ struct virtio_fs_vq *fsvq;
+ int i;
+
+ for (i = 0; i < fs->nvqs; i++) {
+ fsvq = &fs->vqs[i];
+ spin_lock(&fsvq->lock);
+ fsvq->connected = false;
+ spin_unlock(&fsvq->lock);
+ }
+}
+
static void virtio_fs_remove(struct virtio_device *vdev)
{
struct virtio_fs *fs = vdev->priv;
+ virtio_fs_stop_all_queues(fs);
vdev->config->reset(vdev);
virtio_fs_cleanup_vqs(vdev, fs);
--
2.20.1
