Updated from Linux LTS 3.10.18 to 3.10.19
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@@ -529,7 +529,8 @@ void sg_miter_stop(struct sg_mapping_iter *miter)
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miter->__offset += miter->consumed;
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miter->__remaining -= miter->consumed;
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if (miter->__flags & SG_MITER_TO_SG)
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if ((miter->__flags & SG_MITER_TO_SG) &&
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!PageSlab(miter->page))
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flush_kernel_dcache_page(miter->page);
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if (miter->__flags & SG_MITER_ATOMIC) {
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