From d362213722c8875b40d712796392682968ce685e Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Sun, 3 Jun 2012 19:44:25 +0000
Subject: [PATCH] powerpc/iommu: Push spinlock into iommu_range_alloc and
 __iommu_free

In preparation for IOMMU pools, push the spinlock into
iommu_range_alloc and __iommu_free.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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