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authorMichael S. Tsirkin <mst@redhat.com>2016-03-23 20:34:19 +0200
committerJoerg Roedel <jroedel@suse.de>2016-04-05 17:00:37 +0200
commit3d1a2442d2c08c872150db7a554647c06f6e864f (patch)
tree568ee17ca89956cf570ad3dbc65212b5e4d277be
parenta0fe14d7dcf5db2f101b4fe8689ecabb255ab7d3 (diff)
downloadtalos-obmc-linux-3d1a2442d2c08c872150db7a554647c06f6e864f.tar.gz
talos-obmc-linux-3d1a2442d2c08c872150db7a554647c06f6e864f.zip
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>
-rw-r--r--drivers/iommu/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index a2e1b7f14df2..01005531891b 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1143,7 +1143,7 @@ next:
} while (!first_pte_in_page(++pte) && pfn <= last_pfn);
}
-/* free page table pages. last level pte should already be cleared */
+/* clear last level (leaf) ptes and free page table pages. */
static void dma_pte_free_pagetable(struct dmar_domain *domain,
unsigned long start_pfn,
unsigned long last_pfn)
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