From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Tue, 7 Feb 2012 02:29:06 +0000 (+0000)
Subject: net: Add memory barriers to prevent possible race in byte queue limits
X-Git-Tag: v3.4-rc1~177^2~70
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b37c0fbe3f6dfba1f8ad2aed47fb40578a254635;p=pandora-kernel.git

net: Add memory barriers to prevent possible race in byte queue limits

This change adds a memory barrier to the byte queue limit code to address a
possible race as has been seen in the past with the
netif_stop_queue/netif_wake_queue logic.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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