From d22e1537181188e5dc8cbc51451832625035bdc2 Mon Sep 17 00:00:00 2001
From: Josh Hunt <johunt@akamai.com>
Date: Thu, 19 Mar 2015 19:19:30 -0400
Subject: [PATCH] tcp: fix tcp fin memory accounting

tcp_send_fin() does not account for the memory it allocates properly, so
sk_forward_alloc can be negative in cases where we've sent a FIN:

ss example output (ss -amn | grep -B1 f4294):
tcp    FIN-WAIT-1 0      1            192.168.0.1:45520         192.0.2.1:8080
	skmem:(r0,rb87380,t0,tb87380,f4294966016,w1280,o0,bl0)
Acked-by: Eric Dumazet <edumazet@google.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed