1 files changed, 3 insertions, 16 deletions

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 141dbb695097..73cb22ee9665 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1655,11 +1655,7 @@ int khugepaged_enter_vma_merge(struct vm_area_struct *vma)
         if (vma->vm_ops)
                 /* khugepaged not yet working on file or special mappings */
                 return 0;
-        /*
-         * If is_pfn_mapping() is true is_learn_pfn_mapping() must be
-         * true too, verify it here.
-         */
-        VM_BUG_ON(is_linear_pfn_mapping(vma) || vma->vm_flags & VM_NO_THP);
+        VM_BUG_ON(vma->vm_flags & VM_NO_THP);
         hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK;
         hend = vma->vm_end & HPAGE_PMD_MASK;
         if (hstart < hend)
@@ -1912,11 +1908,7 @@ static void collapse_huge_page(struct mm_struct *mm,
                 goto out;
         if (is_vma_temporary_stack(vma))
                 goto out;
-        /*
-         * If is_pfn_mapping() is true is_learn_pfn_mapping() must be
-         * true too, verify it here.
-         */
-        VM_BUG_ON(is_linear_pfn_mapping(vma) || vma->vm_flags & VM_NO_THP);
+        VM_BUG_ON(vma->vm_flags & VM_NO_THP);
 
         pgd = pgd_offset(mm, address);
         if (!pgd_present(*pgd))
@@ -2154,12 +2146,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
                         goto skip;
                 if (is_vma_temporary_stack(vma))
                         goto skip;
-                /*
-                 * If is_pfn_mapping() is true is_learn_pfn_mapping()
-                 * must be true too, verify it here.
-                 */
-                VM_BUG_ON(is_linear_pfn_mapping(vma) ||
-                          vma->vm_flags & VM_NO_THP);
+                VM_BUG_ON(vma->vm_flags & VM_NO_THP);
 
                 hstart = (vma->vm_start + ~HPAGE_PMD_MASK) & HPAGE_PMD_MASK;
                 hend = vma->vm_end & HPAGE_PMD_MASK;