path: root/net/dccp/timer.c
diff options
authorWei Wang <weiwan@google.com>2019-01-25 10:53:19 -0800
committerDavid S. Miller <davem@davemloft.net>2019-01-27 13:29:43 -0800
commit31954cd8bb667030b1c0d3d77f28fe71f06999f9 (patch)
treef00b43f2669ac70db625d8babe06e89cd0a731e2 /net/dccp/timer.c
parentnet: ipv4: ip_input: fix blank line coding style issues (diff)
tcp: Refactor pingpong code
Instead of using pingpong as a single bit information, we refactor the code to treat it as a counter. When interactive session is detected, we set pingpong count to TCP_PINGPONG_THRESH. And when pingpong count is >= TCP_PINGPONG_THRESH, we consider the session in pingpong mode. This patch is a pure refactor and sets foundation for the next patch. This patch itself does not change any pingpong logic. Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/timer.c')
1 files changed, 2 insertions, 2 deletions
diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index 1501a20a94ca..74e138495d67 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -199,7 +199,7 @@ static void dccp_delack_timer(struct timer_list *t)
icsk->icsk_ack.pending &= ~ICSK_ACK_TIMER;
if (inet_csk_ack_scheduled(sk)) {
- if (!icsk->icsk_ack.pingpong) {
+ if (!inet_csk_in_pingpong_mode(sk)) {
/* Delayed ACK missed: inflate ATO. */
icsk->icsk_ack.ato = min(icsk->icsk_ack.ato << 1,
@@ -207,7 +207,7 @@ static void dccp_delack_timer(struct timer_list *t)
/* Delayed ACK missed: leave pingpong mode and
* deflate ATO.
- icsk->icsk_ack.pingpong = 0;
+ inet_csk_exit_pingpong_mode(sk);
icsk->icsk_ack.ato = TCP_ATO_MIN;