netdev - Re: [PATCH net-next v2] ipv4: tcp: remove per net tcp

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Date:	Sat, 21 Jul 2012 17:00:35 +0900
From:	Hiroaki SHIMODA <shimoda.hiroaki@...il.com>
To:	eric.dumazet@...il.com
Cc:	davem@...emloft.net, netdev@...r.kernel.org, therbert@...gle.com,
	wsommerfeld@...gle.com
Subject: Re: [PATCH net-next v2] ipv4: tcp: remove per net tcp_sock

On Thu, 19 Jul 2012 19:34:03 +0200
Eric Dumazet <eric.dumazet@...il.com> wrote:

> +static DEFINE_PER_CPU(struct inet_sock, unicast_sock) = {
> +	.sk = {
> +		.__sk_common = {
> +			.skc_refcnt = ATOMIC_INIT(1),
> +		},
> +		.sk_wmem_alloc	= ATOMIC_INIT(1),
> +		.sk_allocation	= GFP_ATOMIC,
> +		.sk_flags	= (1UL << SOCK_USE_WRITE_QUEUE),
> +	},
> +	.pmtudisc = IP_PMTUDISC_WANT,
> +};

RST packet generated from unicast_sock have 0 TTL value.
I think ".uc_ttl = -1" is needed in above initialization.
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