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Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 53232dd6fb4..20aea1595c4 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;
+ }
}
}