From: Michael S. Tsirkin <mst@redhat.com>
Date: Mon, 8 Mar 2010 21:24:22 +0000 (+0200)
Subject: vhost: fix interrupt mitigation with raw sockets
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0e255572121180c900e24e33b87047abd8153cce;p=openwrt%2Fstaging%2Fblogic.git

vhost: fix interrupt mitigation with raw sockets

A thinko in code means we never trigger interrupt
mitigation. Fix this.

Reported-by: Juan Quintela <quintela@redhat.com>
Reported-by: Unai Uribarri <unai.uribarri@optenet.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index fcafb6b170fb..a6a88dfd5029 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -125,7 +125,7 @@ static void handle_tx(struct vhost_net *net)
 	mutex_lock(&vq->mutex);
 	vhost_disable_notify(vq);
 
-	if (wmem < sock->sk->sk_sndbuf * 2)
+	if (wmem < sock->sk->sk_sndbuf / 2)
 		tx_poll_stop(net);
 	hdr_size = vq->hdr_size;