On Wed, Feb 12, 2014 at 01:57:46PM +0800, Jason Wang wrote: > Currently, even if the packet were truncated by lower socket, we still > report the packet size as the used len which may confuse guest > driver. Fixes this by returning the size of guest receive buffer instead. > > Fixes 3a4d5c94e959359ece6d6b55045c3f046677f55c > (vhost_net: a kernel-level virtio server) > > Cc: Michael S. Tsirkin <mst@xxxxxxxxxx> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> As discussed off-line: NAK and a fixed version will be sent. > --- > drivers/vhost/net.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c > index 9a68409..06268a0 100644 > --- a/drivers/vhost/net.c > +++ b/drivers/vhost/net.c > @@ -525,7 +525,8 @@ static int get_rx_bufs(struct vhost_virtqueue *vq, > ++headcount; > seg += in; > } > - heads[headcount - 1].len += datalen; > + if (likely(datalen < 0)) > + heads[headcount - 1].len += datalen; > *iovcount = seg; > if (unlikely(log)) > *log_num = nlogs; > -- > 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
