Displaying 2 results from an estimated 2 matches for "skb_cb_overlay".
2013 Jul 09
20
[PATCH 1/1] xen/netback: correctly calculate required slots of skb.
When counting required slots for skb, netback directly uses DIV_ROUND_UP to get
slots required by header data. This is wrong when offset in the page of header
data is not zero, and is also inconsistent with following calculation for
required slot in netbk_gop_skb.
In netbk_gop_skb, required slots are calculated based on offset and len in page
of header data. It is possible that required slots
2013 Jul 02
3
[PATCH RFC] xen-netback: remove guest RX path dependence on MAX_SKB_FRAGS
...ek + 1;
mb(); /* request notification /then/ check the queue */
return xen_netbk_rx_ring_full(vif);
@@ -675,7 +662,6 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
struct sk_buff *skb;
LIST_HEAD(notify);
int ret;
- int nr_frags;
int count;
unsigned long offset;
struct skb_cb_overlay *sco;
@@ -690,20 +676,23 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
count = 0;
while ((skb = skb_dequeue(&netbk->rx_queue)) != NULL) {
+ unsigned int ring_slots_required;
vif = netdev_priv(skb->dev);
- nr_frags = skb_shinfo(skb)->nr_frags;
sco = (struct...