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authorJakub Kicinski <kuba@kernel.org>2023-06-02 01:33:03 +0300
committerJakub Kicinski <kuba@kernel.org>2023-06-02 01:38:26 +0300
commita03a91bd68cb00c615e602cf605e6be12bedaa90 (patch)
treed26ef8bf5538d777498d6ef0fc6e4cc69475415b /net/ipv4/tcp_timer.c
parent4ff3dfc91c8458f65366f283167d1cd6f16be06f (diff)
parent714069daa5d345483578e2ff77fb6f06f4dcba6a (diff)
downloadlinux-a03a91bd68cb00c615e602cf605e6be12bedaa90.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: drivers/net/ethernet/sfc/tc.c 622ab656344a ("sfc: fix error unwinds in TC offload") b6583d5e9e94 ("sfc: support TC decap rules matching on enc_src_port") net/mptcp/protocol.c 5b825727d087 ("mptcp: add annotations around msk->subflow accesses") e76c8ef5cc5b ("mptcp: refactor mptcp_stream_accept()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 0d93a2573807..470f581eedd4 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -295,9 +295,19 @@ static int tcp_write_timeout(struct sock *sk)
void tcp_delack_timer_handler(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
+ struct tcp_sock *tp = tcp_sk(sk);
- if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN)) ||
- !(icsk->icsk_ack.pending & ICSK_ACK_TIMER))
+ if ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN))
+ return;
+
+ /* Handling the sack compression case */
+ if (tp->compressed_ack) {
+ tcp_mstamp_refresh(tp);
+ tcp_sack_compress_send_ack(sk);
+ return;
+ }
+
+ if (!(icsk->icsk_ack.pending & ICSK_ACK_TIMER))
return;
if (time_after(icsk->icsk_ack.timeout, jiffies)) {
@@ -317,7 +327,7 @@ void tcp_delack_timer_handler(struct sock *sk)
inet_csk_exit_pingpong_mode(sk);
icsk->icsk_ack.ato = TCP_ATO_MIN;
}
- tcp_mstamp_refresh(tcp_sk(sk));
+ tcp_mstamp_refresh(tp);
tcp_send_ack(sk);
__NET_INC_STATS(sock_net(sk), LINUX_MIB_DELAYEDACKS);
}