From 0e242612d9cdb46e878ed1f126c78fe68492af00 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Wed, 19 Feb 2014 14:07:34 +0800
Subject: [PATCH] iommu/vt-d: Use RCU to protect global resources in interrupt
 context

Global DMA and interrupt remapping resources may be accessed in
interrupt context, so use RCU instead of rwsem to protect them
in such cases.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
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Reading git-format-patch failed