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Commit d0410051 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by David S. Miller
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[TCP]: SACK fastpath did override adjusted fackets_out 



Do same adjustment to SACK fastpath counters provided that
they're valid.

Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 61cbc2fc

net/ipv4/tcp_output.c

+8 −0
Original line number Diff line number Diff line
@@ -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;

			}

		}

	}