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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2] tcp: restore correct limit
Date: Tue, 10 Apr 2012 14:42:18 -0400 (EDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 10 Apr 2012 12:56:42 +0200

> Commit c43b874d5d714f (tcp: properly initialize tcp memory limits) tried
> to fix a regression added in commits 4acb4190 & 3dc43e3,
> but still get it wrong.
> 
> Result is machines with low amount of memory have too small tcp_rmem[2]
> value and slow tcp receives : Per socket limit being 1/1024 of memory
> instead of 1/128 in old kernels, so rcv window is capped to small
> values.
> 
> Fix this to match comment and previous behavior.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
> Cc: Jason Wang <jasowang@redhat.com>
> Cc: Glauber Costa <glommer@parallels.com>

Applied and queued up for -stable, thanks Eric.