@@ -480,7 +480,7 @@ struct sk_buff {
union {
__u32 mark;
__u32 dropcount;
- __u32 avail_size;
+ __u32 reserved_tailroom;
};
sk_buff_data_t transport_header;
@@ -1391,7 +1391,10 @@ static inline int skb_tailroom(const struct sk_buff *skb)
*/
static inline int skb_availroom(const struct sk_buff *skb)
{
- return skb_is_nonlinear(skb) ? 0 : skb->avail_size - skb->len;
+ if (skb_is_nonlinear(skb))
+ return 0;
+
+ return skb->end - skb->tail - skb->reserved_tailroom;
}
/**
@@ -769,7 +769,7 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp)
* Make sure that we have exactly size bytes
* available to the caller, no more, no less.
*/
- skb->avail_size = size;
+ skb->reserved_tailroom = skb->end - skb->tail - size;
return skb;
}
__kfree_skb(skb);
@@ -1097,7 +1097,6 @@ static void __pskb_trim_head(struct sk_buff *skb, int len)
eat = min_t(int, len, skb_headlen(skb));
if (eat) {
__skb_pull(skb, eat);
- skb->avail_size -= eat;
len -= eat;
if (!len)
return;