On 15.02.23 21:58, Peter Xu wrote:
The comment is obsolete after f369b07c8614 ("mm/uffd: reset write
protection when unregister with wp-mode", 2022-08-20). Remove it.
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
mm/memory.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 7a04a1130ec1..f456f3b5049c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3627,9 +3627,7 @@ static vm_fault_t pte_marker_handle_uffd_wp(struct vm_fault *vmf)
{
/*
* Just in case there're leftover special ptes even after the region
- * got unregistered - we can simply clear them. We can also do that
- * proactively when e.g. when we do UFFDIO_UNREGISTER upon some uffd-wp
- * ranges, but it should be more efficient to be done lazily here.
+ * got unregistered - we can simply clear them.
*/
if (unlikely(!userfaultfd_wp(vmf->vma) || vma_is_anonymous(vmf->vma)))
return pte_marker_clear(vmf);
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
--
Thanks,
David / dhildenb
