Re: [Xen-devel] [PATCH v5 5/7] VT-d: Refactor iommu_ops .map_page() and unmap_page()

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 05.02.16 at 11:18, <quan.xu@xxxxxxxxx> wrote:
> to pass down a flag indicating whether the lock is being held,
> and check the way up the call trees.

Same comments as on the previous patch; most of the changes
outside of xen/drivers/passthrough/ seem to be avoidable here.

Jan


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