Willem de Bruijn
2020-Dec-24 02:39 UTC
[PATCH net v4 2/2] vhost_net: fix tx queue stuck when sendmsg fails
On Wed, Dec 23, 2020 at 9:25 PM wangyunjian <wangyunjian at huawei.com> wrote:> > From: Yunjian Wang <wangyunjian at huawei.com> > > Currently the driver doesn't drop a packet which can't be sent by tun > (e.g bad packet). In this case, the driver will always process the > same packet lead to the tx queue stuck. > > To fix this issue: > 1. in the case of persistent failure (e.g bad packet), the driver > can skip this descriptor by ignoring the error. > 2. in the case of transient failure (e.g -EAGAIN and -ENOMEM), the > driver schedules the worker to try again. > > Fixes: 3a4d5c94e959 ("vhost_net: a kernel-level virtio server") > Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>Acked-by: Willem de Bruijn <willemb at google.com> Thanks.