183 		unsigned long address, pmd_t *pmd, unsigned int flags,  in follow_page_pte()  argument
203 	if (unlikely(pmd_bad(*pmd)))  in follow_page_pte()
206 	ptep = pte_offset_map_lock(mm, pmd, address, &ptl);  in follow_page_pte()
223 		migration_entry_wait(mm, pmd, address);  in follow_page_pte()
333 	pmd_t *pmd, pmdval;  in follow_pmd_mask()  local
338 	pmd = pmd_offset(pudp, address);  in follow_pmd_mask()
343 	pmdval = READ_ONCE(*pmd);  in follow_pmd_mask()
367 			pmd_migration_entry_wait(mm, pmd);  in follow_pmd_mask()
368 		pmdval = READ_ONCE(*pmd);  in follow_pmd_mask()
378 		ptl = pmd_lock(mm, pmd);  in follow_pmd_mask()
379 		page = follow_devmap_pmd(vma, address, pmd, flags, &ctx->pgmap);  in follow_pmd_mask()
385 		return follow_page_pte(vma, address, pmd, flags, &ctx->pgmap);  in follow_pmd_mask()
391 	ptl = pmd_lock(mm, pmd);  in follow_pmd_mask()
392 	if (unlikely(pmd_none(*pmd))) {  in follow_pmd_mask()
396 	if (unlikely(!pmd_present(*pmd))) {  in follow_pmd_mask()
400 		pmd_migration_entry_wait(mm, pmd);  in follow_pmd_mask()
403 	if (unlikely(!pmd_trans_huge(*pmd))) {  in follow_pmd_mask()
405 		return follow_page_pte(vma, address, pmd, flags, &ctx->pgmap);  in follow_pmd_mask()
409 		page = pmd_page(*pmd);  in follow_pmd_mask()
413 			split_huge_pmd(vma, pmd, address);  in follow_pmd_mask()
414 			if (pmd_trans_unstable(pmd))  in follow_pmd_mask()
426 			if (pmd_none(*pmd))  in follow_pmd_mask()
430 			split_huge_pmd(vma, pmd, address);  in follow_pmd_mask()
431 			ret = pte_alloc(mm, pmd) ? -ENOMEM : 0;  in follow_pmd_mask()
435 			follow_page_pte(vma, address, pmd, flags, &ctx->pgmap);  in follow_pmd_mask()
437 	page = follow_trans_huge_pmd(vma, address, pmd, flags);  in follow_pmd_mask()
587 	pmd_t *pmd;  in get_gate_page()  local
606 	pmd = pmd_offset(pud, address);  in get_gate_page()
607 	if (!pmd_present(*pmd))  in get_gate_page()
609 	VM_BUG_ON(pmd_trans_huge(*pmd));  in get_gate_page()
610 	pte = pte_offset_map(pmd, address);  in get_gate_page()
1837 static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,  in gup_pte_range()  argument
1844 	ptem = ptep = pte_offset_map(&pmd, addr);  in gup_pte_range()
1910 static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,  in gup_pte_range()  argument
2206 		pmd_t pmd = READ_ONCE(*pmdp);  in gup_pmd_range()  local
2209 		if (!pmd_present(pmd))  in gup_pmd_range()
2212 		if (unlikely(pmd_trans_huge(pmd) || pmd_huge(pmd) ||  in gup_pmd_range()
2213 			     pmd_devmap(pmd))) {  in gup_pmd_range()
2219 			if (pmd_protnone(pmd))  in gup_pmd_range()
2222 			if (!gup_huge_pmd(pmd, pmdp, addr, next, flags,  in gup_pmd_range()
2226 		} else if (unlikely(is_hugepd(__hugepd(pmd_val(pmd))))) {  in gup_pmd_range()
2231 			if (!gup_huge_pd(__hugepd(pmd_val(pmd)), addr,  in gup_pmd_range()
2234 		} else if (!gup_pte_range(pmd, addr, next, flags, pages, nr))  in gup_pmd_range()