From: David S. Miller <davem@davemloft.net>
Date: Wed, 30 Sep 2020 21:21:30 +0000 (-0700)
Subject: Merge branch 'tcp-exponential-backoff-in-tcp_send_ack'
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=9b5cbf469d7efb8553635b1f25a6337101dd5f00;p=linux.git

Merge branch 'tcp-exponential-backoff-in-tcp_send_ack'

Eric Dumazet says:

====================
tcp: exponential backoff in tcp_send_ack()

We had outages caused by repeated skb allocation failures in tcp_send_ack()

It is time to add exponential backoff to reduce number of attempts.
Before doing so, first patch removes icsk_ack.blocked to make
room for a new field (icsk_ack.retry)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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9b5cbf469d7efb8553635b1f25a6337101dd5f00