On 2018年09月07日 22:17, Michael S. Tsirkin wrote:
On Fri, Sep 07, 2018 at 11:22:00AM +0800, Jason Wang wrote:
@@ -1668,6 +1668,9 @@ static struct sk_buff *tun_build_skb(struct tun_struct
*tun,
if (copied != len)
return ERR_PTR(-EFAULT);
+
On Fri, Sep 07, 2018 at 11:22:00AM +0800, Jason Wang wrote:
> > > @@ -1668,6 +1668,9 @@ static struct sk_buff *tun_build_skb(struct
> > > tun_struct *tun,
> > > if (copied != len)
> > > return ERR_PTR(-EFAULT);
> > > + get_page(alloc_frag->page);
> > > +
On 2018年09月07日 01:14, Michael S. Tsirkin wrote:
On Thu, Sep 06, 2018 at 12:05:19PM +0800, Jason Wang wrote:
There's no need to duplicate page get logic in each action. So this
patch tries to get page and calculate the offset before processing XDP
actions, and undo them when meet errors (we
On Thu, Sep 06, 2018 at 12:05:19PM +0800, Jason Wang wrote:
> There's no need to duplicate page get logic in each action. So this
> patch tries to get page and calculate the offset before processing XDP
> actions, and undo them when meet errors (we don't care the performance
> on errors). This
