From 64e9a9b8a0eef9cbd9f86f0e79fc4eeea24abe76 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 3 Dec 2012 07:31:51 +0000 Subject: [PATCH 1/1] vhost-net: initialize zcopy packet counters These packet counters are used to drive the zercopy selection heuristic so nothing too bad happens if they are off a bit - and they are also reset once in a while. But it's cleaner to clear them when backend is set so that we start in a known state. Signed-off-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/vhost/net.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 67898fa9c44..ff6c91995c9 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -823,6 +823,9 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd) r = vhost_init_used(vq); if (r) goto err_vq; + + n->tx_packets = 0; + n->tx_zcopy_err = 0; } mutex_unlock(&vq->mutex); -- 2.43.2