diff options
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index a96f7b586277..963bda18486f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2885,6 +2885,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, __be32 delta; unsigned int oldlen; unsigned int mss; + struct sk_buff *gso_skb = skb; if (!pskb_may_pull(skb, sizeof(*th))) goto out; @@ -2953,6 +2954,17 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, th->cwr = 0; } while (skb->next); + /* Following permits TCP Small Queues to work well with GSO : + * The callback to TCP stack will be called at the time last frag + * is freed at TX completion, and not right now when gso_skb + * is freed by GSO engine + */ + if (gso_skb->destructor == tcp_wfree) { + swap(gso_skb->sk, skb->sk); + swap(gso_skb->destructor, skb->destructor); + swap(gso_skb->truesize, skb->truesize); + } + delta = htonl(oldlen + (skb->tail - skb->transport_header) + skb->data_len); th->check = ~csum_fold((__force __wsum)((__force u32)th->check + |
