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authorEric Dumazet <edumazet@google.com>2018-05-18 00:47:25 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-18 18:40:27 +0300
commita3893637e1eb0ef5eb1bbc52b3a8d2dfa317a35d (patch)
tree8ed1ee3a02530b01ae555672faaef9a09adfffd5 /net/ipv4/tcp_input.c
parentcf0dd203728c20e76976b69cdf42d065c1e5cab3 (diff)
downloadlinux-a3893637e1eb0ef5eb1bbc52b3a8d2dfa317a35d.tar.xz
tcp: do not force quickack when receiving out-of-order packets
As explained in commit 9f9843a751d0 ("tcp: properly handle stretch acks in slow start"), TCP stacks have to consider how many packets are acknowledged in one single ACK, because of GRO, but also because of ACK compression or losses. We plan to add SACK compression in the following patch, we must therefore not call tcp_enter_quickack_mode() Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 0bf032839548..f5622b250665 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4715,8 +4715,6 @@ drop:
if (!before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt + tcp_receive_window(tp)))
goto out_of_window;
- tcp_enter_quickack_mode(sk);
-
if (before(TCP_SKB_CB(skb)->seq, tp->rcv_nxt)) {
/* Partial packet, seq < rcv_next < end_seq */
SOCK_DEBUG(sk, "partial packet: rcv_next %X seq %X - %X\n",