netdev - Re: [PATCH] net-tcp: fastopen: fix high order allocations

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Message-Id: <20140222.000626.364636476966900818.davem@davemloft.net>
Date:	Sat, 22 Feb 2014 00:06:26 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, ycheng@...gle.com
Subject: Re: [PATCH] net-tcp: fastopen: fix high order allocations

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 20 Feb 2014 10:09:18 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> This patch fixes two bugs in fastopen :
> 
> 1) The tcp_sendmsg(...,  @size) argument was ignored.
> 
>    Code was relying on user not fooling the kernel with iovec mismatches
> 
> 2) When MTU is about 64KB, tcp_send_syn_data() attempts order-5
> allocations, which are likely to fail when memory gets fragmented.
> 
> Fixes: 783237e8daf13 ("net-tcp: Fast Open client - sending SYN-data")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied and queued up for -stable, thanks Eric.
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