This moves the net code we use to stop new works from being queued
and wait on running works to a helper which is used by the vhost layer
when the vhost_task is being killed by a SIGKILL.
Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx>
---
drivers/vhost/net.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 90c25127b3f8..f8a5527b15ba 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1325,9 +1325,9 @@ static void vhost_net_flush(struct vhost_net *n)
}
}
-static int vhost_net_release(struct inode *inode, struct file *f)
+static void vhost_net_stop_dev_work(struct vhost_dev *dev)
{
- struct vhost_net *n = f->private_data;
+ struct vhost_net *n = container_of(dev, struct vhost_net, dev);
struct socket *tx_sock;
struct socket *rx_sock;
@@ -1345,6 +1345,13 @@ static int vhost_net_release(struct inode *inode, struct file *f)
/* We do an extra flush before freeing memory,
* since jobs can re-queue themselves. */
vhost_net_flush(n);
+}
+
+static int vhost_net_release(struct inode *inode, struct file *f)
+{
+ struct vhost_net *n = f->private_data;
+
+ vhost_dev_stop_work(&n->dev);
kfree(n->vqs[VHOST_NET_VQ_RX].rxq.queue);
kfree(n->vqs[VHOST_NET_VQ_TX].xdp);
kfree(n->dev.vqs);
@@ -1409,7 +1416,7 @@ static int vhost_net_open(struct inode *inode, struct file *f)
vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX,
UIO_MAXIOV + VHOST_NET_BATCH,
VHOST_NET_PKT_WEIGHT, VHOST_NET_WEIGHT, true,
- NULL, NULL);
+ NULL, vhost_net_stop_dev_work);
vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, EPOLLOUT, dev);
vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, EPOLLIN, dev);
--
2.25.1
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