From: Joerg Roedel <joerg.roedel@amd.com>
Date: Tue, 1 Sep 2009 14:00:35 +0000 (+0200)
Subject: x86/dma: Mark iommu_pass_through as __read_mostly
X-Git-Tag: v2.6.32-rc1~727^2^2~1^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac0101d396fee24994632f71b55b9f7f9ee16eff;p=pandora-kernel.git

x86/dma: Mark iommu_pass_through as __read_mostly

This variable is read most of the time. This patch marks it
as such. It also documents the meaning the this variable
while at it.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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