diff --git a/mm/gup.c b/mm/gup.c
index 63845b3ec44f..760406180222 100644
--- a/mm/gup.c
+++ b/mm/gup.c

@@ -525,6 +525,70 @@ static struct page *no_page_table(struct vm_area_struct *vma,
 	return NULL;
 }
 
+#ifdef CONFIG_PGTABLE_HAS_HUGE_LEAVES
+static struct page *follow_huge_pud(struct vm_area_struct *vma,
+				    unsigned long addr, pud_t *pudp,
+				    int flags, struct follow_page_context *ctx)
+{
+	struct mm_struct *mm = vma->vm_mm;
+	struct page *page;
+	pud_t pud = *pudp;
+	unsigned long pfn = pud_pfn(pud);
+	int ret;
+
+	assert_spin_locked(pud_lockptr(mm, pudp));
+
+	if ((flags & FOLL_WRITE) && !pud_write(pud))
+		return NULL;
+
+	if (!pud_present(pud))
+		return NULL;
+
+	pfn += (addr & ~PUD_MASK) >> PAGE_SHIFT;
+
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+	if (pud_devmap(pud)) {

+		/*
+		 * device mapped pages can only be returned if the caller
+		 * will manage the page reference count.
+		 *
+		 * At least one of FOLL_GET | FOLL_PIN must be set, so
+		 * assert that here:
+		 */
+		if (!(flags & (FOLL_GET | FOLL_PIN)))
+			return ERR_PTR(-EEXIST);
+
+		if (flags & FOLL_TOUCH)
+			touch_pud(vma, addr, pudp, flags & FOLL_WRITE);
+
+		ctx->pgmap = get_dev_pagemap(pfn, ctx->pgmap);
+		if (!ctx->pgmap)
+			return ERR_PTR(-EFAULT);
+	}
+#endif	/* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
+	page = pfn_to_page(pfn);
+
+	if (!pud_devmap(pud) && !pud_write(pud) &&
+	    gup_must_unshare(vma, flags, page))
+		return ERR_PTR(-EMLINK);
+
+	ret = try_grab_page(page, flags);
+	if (ret)
+		page = ERR_PTR(ret);
+	else
+		ctx->page_mask = HPAGE_PUD_NR - 1;
+
+	return page;
+}
+#else  /* CONFIG_PGTABLE_HAS_HUGE_LEAVES */
+static struct page *follow_huge_pud(struct vm_area_struct *vma,
+				    unsigned long addr, pud_t *pudp,
+				    int flags, struct follow_page_context *ctx)
+{
+	return NULL;
+}
+#endif	/* CONFIG_PGTABLE_HAS_HUGE_LEAVES */
+
 static int follow_pfn_pte(struct vm_area_struct *vma, unsigned long address,
 		pte_t *pte, unsigned int flags)
 {

@@ -760,11 +824,11 @@ static struct page *follow_pud_mask(struct vm_area_struct *vma,
 
 	pudp = pud_offset(p4dp, address);
 	pud = READ_ONCE(*pudp);
-	if (pud_none(pud))
+	if (pud_none(pud) || !pud_present(pud))
 		return no_page_table(vma, flags, address);