Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1363605

[PATCH] intel-iommu: fix up comment

Show all headers | View raw

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>
---
 drivers/iommu/intel-iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index a2e1b7f..0100553 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)
-- 
MST

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH] intel-iommu: fix up comment "Michael S. Tsirkin" <mst@redhat.com> - 2016-03-23 19:40 +0100

csiph-web