kernel: bump 6.1 to 6.1.89

[openwrt/openwrt.git] / target / linux / generic / backport-4.9 / 024-5-tcp-tsq-add-a-shortcut-in-tcp_small_queue_check.patch

diff --git a/target/linux/generic/backport-4.9/024-5-tcp-tsq-add-a-shortcut-in-tcp_small_queue_check.patch b/target/linux/generic/backport-4.9/024-5-tcp-tsq-add-a-shortcut-in-tcp_small_queue_check.patch
deleted file mode 100644 (file)
index d04e365..0000000
--- a/target/linux/generic/backport-4.9/024-5-tcp-tsq-add-a-shortcut-in-tcp_small_queue_check.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From 75eefc6c59fd2c5f1ab95a3a113c217237d12a31 Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Sat, 3 Dec 2016 11:14:54 -0800
-Subject: [PATCH 05/10] tcp: tsq: add a shortcut in tcp_small_queue_check()
-
-Always allow the two first skbs in write queue to be sent,
-regardless of sk_wmem_alloc/sk_pacing_rate values.
-
-This helps a lot in situations where TX completions are delayed either
-because of driver latencies or softirq latencies.
-
-Test is done with no cache line misses.
-
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- net/ipv4/tcp_output.c | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
---- a/net/ipv4/tcp_output.c
-+++ b/net/ipv4/tcp_output.c
-@@ -2127,6 +2127,15 @@ static bool tcp_small_queue_check(struct
-       limit <<= factor;
- 
-       if (atomic_read(&sk->sk_wmem_alloc) > limit) {
-+              /* Always send the 1st or 2nd skb in write queue.
-+               * No need to wait for TX completion to call us back,
-+               * after softirq/tasklet schedule.
-+               * This helps when TX completions are delayed too much.
-+               */
-+              if (skb == sk->sk_write_queue.next ||
-+                  skb->prev == sk->sk_write_queue.next)
-+                      return false;
-+
-               set_bit(TSQ_THROTTLED, &tcp_sk(sk)->tsq_flags);
-               /* It is possible TX completion already happened
-                * before we set TSQ_THROTTLED, so we must