From: Tom Herbert <tom@herbertland.com>
Date: Tue, 28 Jul 2015 23:02:06 +0000 (-0700)
Subject: net: Recompute sk_txhash on negative routing advice
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~272^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=265f94ff54d62503663d9c788ba1f082e448f8b8;p=pandora-kernel.git

net: Recompute sk_txhash on negative routing advice

When a connection is failing a transport protocol calls
dst_negative_advice to try to get a better route. This patch includes
changing the sk_txhash in that function. This provides a rudimentary
method to try to find a different path in the network since sk_txhash
affects ECMP on the local host and through the network (via flow labels
or UDP source port in encapsulation).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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