From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 25 Sep 2009 12:19:02 +0000 (+0000)
Subject: e1000: remove races when changing mtu
X-Git-Tag: v2.6.32-rc3~63^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d6114e71dffb9fb9dedc8569103310c5bbf0296;p=pandora-kernel.git

e1000: remove races when changing mtu

this patch fixes a bug that occurs when routing packets and simultaneously
changing the mtu.  the rx_buffer_len variable is used during the rx cleanup
and if that changes on the fly without stopping traffic bad things happen

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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