From: Eric Dumazet <edumazet@google.com>
Date: Thu, 20 Feb 2014 18:09:18 +0000 (-0800)
Subject: net-tcp: fastopen: fix high order allocations
X-Git-Tag: v3.14-rc6~30^2~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5ddcbbb40aa0ba7fbfe22355d287603dbeeaaac;p=pandora-kernel.git

net-tcp: fastopen: fix high order allocations

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@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Tested-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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