diff --git a/mm/ksm.c b/mm/ksm.c
index 15dd7415f7b3..787dfe4f3d44 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c

@@ -2358,6 +2358,9 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
 				 VM_HUGETLB | VM_MIXEDMAP))
 			return 0;		/* just ignore the advice */
 
+		if (vma_is_dax(vma))
+			return 0;
+
 #ifdef VM_SAO
 		if (*vm_flags & VM_SAO)
 			return 0;

diff --git a/mm/madvise.c b/mm/madvise.c
index 21261ff0466f..40344d43e565 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c

@@ -95,7 +95,7 @@ static long madvise_behavior(struct vm_area_struct *vma,
 		new_flags |= VM_DONTDUMP;
 		break;
 	case MADV_DODUMP:
-		if (new_flags & VM_SPECIAL) {
+		if (vma_is_dax(vma) || (new_flags & VM_SPECIAL)) {
 			error = -EINVAL;
 			goto out;
 		}

diff --git a/mm/memory.c b/mm/memory.c
index ec4e15494901..771acaf54fe6 100644
--- a/mm/memory.c
+++ b/mm/memory.c

@@ -830,6 +830,8 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
 			return vma->vm_ops->find_special_page(vma, addr);
 		if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP))
 			return NULL;
+		if (pte_devmap(pte))
+			return NULL;
 		if (is_zero_pfn(pfn))
 			return NULL;
 

@@ -917,6 +919,8 @@ struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,
 		}
 	}
 
+	if (pmd_devmap(pmd))
+		return NULL;
 	if (is_zero_pfn(pfn))
 		return NULL;
 	if (unlikely(pfn > highest_memmap_pfn))

@@ -1227,7 +1231,7 @@ int copy_page_range(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	 * efficient than faulting.
 	 */
 	if (!(vma->vm_flags & (VM_HUGETLB | VM_PFNMAP | VM_MIXEDMAP)) &&
-			!vma->anon_vma)
+			!vma->anon_vma && !vma_is_dax(vma))
 		return 0;
 
 	if (is_vm_hugetlb_page(vma))

@@ -1896,12 +1900,24 @@ int vm_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr,
 }
 EXPORT_SYMBOL(vm_insert_pfn_prot);
 
+static bool vm_mixed_ok(struct vm_area_struct *vma, pfn_t pfn)
+{
+	/* these checks mirror the abort conditions in vm_normal_page */
+	if (vma->vm_flags & VM_MIXEDMAP)
+		return true;
+	if (pfn_t_devmap(pfn))
+		return true;
+	if (is_zero_pfn(pfn_t_to_pfn(pfn)))
+		return true;
+	return false;
+}
+
 static int __vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
 			pfn_t pfn, bool mkwrite)
 {
 	pgprot_t pgprot = vma->vm_page_prot;
 
-	BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
+	BUG_ON(!vm_mixed_ok(vma, pfn));
 
 	if (addr < vma->vm_start || addr >= vma->vm_end)
 		return -EFAULT;

diff --git a/mm/migrate.c b/mm/migrate.c
index 6954c1435833..179a84a311f6 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c

@@ -2927,7 +2927,8 @@ int migrate_vma(const struct migrate_vma_ops *ops,
 	/* Sanity check the arguments */
 	start &= PAGE_MASK;
 	end &= PAGE_MASK;
-	if (!vma || is_vm_hugetlb_page(vma) || (vma->vm_flags & VM_SPECIAL))
+	if (!vma || is_vm_hugetlb_page(vma) || (vma->vm_flags & VM_SPECIAL)
+			|| vma_is_dax(dma))
 		return -EINVAL;
 	if (start < vma->vm_start || start >= vma->vm_end)
 		return -EINVAL;

diff --git a/mm/mlock.c b/mm/mlock.c
index dfc6f1912176..4d009350893f 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c

@@ -520,7 +520,8 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	vm_flags_t old_flags = vma->vm_flags;
 
 	if (newflags == vma->vm_flags || (vma->vm_flags & VM_SPECIAL) ||
-	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm))
+	    is_vm_hugetlb_page(vma) || vma == get_gate_vma(current->mm) ||
+	    vma_is_dax(vma))
 		/* don't set VM_LOCKED or VM_LOCKONFAULT and don't count */
 		goto out;
 

diff --git a/mm/mmap.c b/mm/mmap.c
index 680506faceae..2f3971a051c6 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c

@@ -1723,7 +1723,8 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	vm_stat_account(mm, vm_flags, len >> PAGE_SHIFT);
 	if (vm_flags & VM_LOCKED) {
 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
-					vma == get_gate_vma(current->mm)))
+					vma == get_gate_vma(current->mm) ||
+					vma_is_dax(vma)))
 			mm->locked_vm += (len >> PAGE_SHIFT);
 		else
 			vma->vm_flags &= VM_LOCKED_CLEAR_MASK;