x86/vt-d: Fix comment for dma_pte_free_pagetable()
dma_pte_free_pagetable no longer depends on last level ptes being clear, it clears them itself. Fix up the comment to match. Cc: Jiang Liu <jiang.liu@linux.intel.com> Suggested-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -1143,7 +1143,7 @@ next:
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} while (!first_pte_in_page(++pte) && pfn <= last_pfn);
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}
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/* free page table pages. last level pte should already be cleared */
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/* clear last level (leaf) ptes and free page table pages. */
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static void dma_pte_free_pagetable(struct dmar_domain *domain,
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unsigned long start_pfn,
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unsigned long last_pfn)
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