1 files changed, 1 insertions, 1 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index 34c4820e0d3d..8778eb7c40f8 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -717,7 +717,7 @@ static bool vma_ksm_compatible(struct vm_area_struct *vma)
 {
 	if (vma->vm_flags & (VM_SHARED  | VM_MAYSHARE   | VM_PFNMAP  |
 			     VM_IO      | VM_DONTEXPAND | VM_HUGETLB |
-			     VM_MIXEDMAP))
+			     VM_MIXEDMAP| VM_DROPPABLE))
 		return false;		/* just ignore the advice */
 
 	if (vma_is_dax(vma))