diff options
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 53232dd6fb48..666d8a58d14a 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -699,6 +699,14 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss tp->fackets_out -= diff; if ((int)tp->fackets_out < 0) tp->fackets_out = 0; + /* SACK fastpath might overwrite it unless dealt with */ + if (tp->fastpath_skb_hint != NULL && + after(TCP_SKB_CB(tp->fastpath_skb_hint)->seq, + TCP_SKB_CB(skb)->seq)) { + tp->fastpath_cnt_hint -= diff; + if ((int)tp->fastpath_cnt_hint < 0) + tp->fastpath_cnt_hint = 0; + } } } @@ -1607,7 +1615,7 @@ u32 __tcp_select_window(struct sock *sk) if (window <= free_space - mss || window > free_space) window = (free_space/mss)*mss; else if (mss == full_space && - free_space > window + full_space/2) + free_space > window + full_space/2) window = free_space; } |