diff options
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/net.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 4c538b30fd76..4418192ab8aa 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -934,13 +934,18 @@ static void handle_tx_zerocopy(struct vhost_net *net, struct socket *sock) err = sock->ops->sendmsg(sock, &msg, len); if (unlikely(err < 0)) { + bool retry = err == -EAGAIN || err == -ENOMEM || err == -ENOBUFS; + if (zcopy_used) { if (vq->heads[ubuf->desc].len == VHOST_DMA_IN_PROGRESS) vhost_net_ubuf_put(ubufs); - nvq->upend_idx = ((unsigned)nvq->upend_idx - 1) - % UIO_MAXIOV; + if (retry) + nvq->upend_idx = ((unsigned)nvq->upend_idx - 1) + % UIO_MAXIOV; + else + vq->heads[ubuf->desc].len = VHOST_DMA_DONE_LEN; } - if (err == -EAGAIN || err == -ENOMEM || err == -ENOBUFS) { + if (retry) { vhost_discard_vq_desc(vq, 1); vhost_net_enable_vq(net, vq); break; |