From 18d99165d3ebe5e365de57bcc673901d754c7142 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Mon, 6 Jan 2014 14:18:10 +0800
Subject: [PATCH] iommu/vt-d: fix a race window in allocating domain ID for
 virtual machines

Function intel_iommu_domain_init() may be concurrently called by upper
layer without serialization, so use atomic_t to protect domain id
allocation.

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