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iommu/vt-d: Use RCU to protect global resources in interrupt context
authorJiang Liu <jiang.liu@linux.intel.com>
Wed, 19 Feb 2014 06:07:34 +0000 (14:07 +0800)
committerJoerg Roedel <joro@8bytes.org>
Tue, 4 Mar 2014 16:51:05 +0000 (17:51 +0100)
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>

No differences found
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