diff options
| -rw-r--r-- | drivers/vhost/net.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index a5a1db647635..7baa90abe097 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -756,7 +756,7 @@ static void handle_rx(struct vhost_net *net) }; size_t total_len = 0; int err, mergeable; - s16 headcount; + s16 headcount, nheads = 0; size_t vhost_hlen, sock_hlen; size_t vhost_len, sock_len; struct socket *sock; @@ -784,7 +784,7 @@ static void handle_rx(struct vhost_net *net) while ((sock_len = vhost_net_rx_peek_head_len(net, sock->sk))) { sock_len += sock_hlen; vhost_len = sock_len + vhost_hlen; - headcount = get_rx_bufs(vq, vq->heads, vhost_len, + headcount = get_rx_bufs(vq, vq->heads + nheads, vhost_len, &in, vq_log, &log, likely(mergeable) ? UIO_MAXIOV : 1); /* On error, stop handling until the next kick. */ @@ -856,8 +856,12 @@ static void handle_rx(struct vhost_net *net) vhost_discard_vq_desc(vq, headcount); goto out; } - vhost_add_used_and_signal_n(&net->dev, vq, vq->heads, - headcount); + nheads += headcount; + if (nheads > VHOST_RX_BATCH) { + vhost_add_used_and_signal_n(&net->dev, vq, vq->heads, + nheads); + nheads = 0; + } if (unlikely(vq_log)) vhost_log_write(vq, vq_log, log, vhost_len); total_len += vhost_len; @@ -868,6 +872,9 @@ static void handle_rx(struct vhost_net *net) } vhost_net_enable_vq(net, vq); out: + if (nheads) + vhost_add_used_and_signal_n(&net->dev, vq, vq->heads, + nheads); mutex_unlock(&vq->mutex); } |