From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: netdev@vger.kernel.org, hans.schillstrom@ericsson.com
Subject: Re: [PATCH net-next] ipv4: tcp: dont cache unconfirmed intput dst
Date: Wed, 27 Jun 2012 17:01:01 -0700 (PDT) [thread overview]
Message-ID: <20120627.170101.99084491660488389.davem@davemloft.net> (raw)
In-Reply-To: <20120627.164418.1928194990434756968.davem@davemloft.net>
From: David Miller <davem@davemloft.net>
Date: Wed, 27 Jun 2012 16:44:18 -0700 (PDT)
> What happens now is that legitimate traffic is harmed too. If we
> really go to established state, we'll cache the DST_NOCACHE route
> in sk->sk_rx_dst.
This change also means that all routed TCP traffic will use
DST_NOCACHE routes as well.
It's not a requirement to turn off early demux on a router, and I very
much wanted to avoid the knob altogether. So this side effect is not
acceptable.
There are quite a number of unwanted side effects from this change, so
I think we'll have to revert unless you can fix up all of the relevant
cases quickly.
next prev parent reply other threads:[~2012-06-28 0:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-27 9:14 [PATCH net-next] ipv4: tcp: dont cache unconfirmed intput dst Eric Dumazet
2012-06-27 22:34 ` David Miller
2012-06-27 23:44 ` David Miller
2012-06-28 0:01 ` David Miller [this message]
2012-06-28 0:08 ` David Miller
2012-06-28 5:08 ` Eric Dumazet
2012-06-28 5:13 ` Eric Dumazet
2012-06-28 5:22 ` David Miller
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