311 static int modify_pud_table(p4d_t *p4d, unsigned long addr, unsigned long end,  in modify_pud_table()  argument
322 	pud = pud_offset(p4d, addr);  in modify_pud_table()
365 static void try_free_pud_table(p4d_t *p4d, unsigned long start)  in try_free_pud_table()  argument
379 	pud = pud_offset(p4d, start);  in try_free_pud_table()
384 	vmem_free_pages(p4d_deref(*p4d), CRST_ALLOC_ORDER);  in try_free_pud_table()
385 	p4d_clear(p4d);  in try_free_pud_table()
393 	p4d_t *p4d;  in modify_p4d_table()  local
396 	p4d = p4d_offset(pgd, addr);  in modify_p4d_table()
397 	for (; addr < end; addr = next, p4d++) {  in modify_p4d_table()
400 			if (p4d_none(*p4d))  in modify_p4d_table()
402 		} else if (p4d_none(*p4d)) {  in modify_p4d_table()
406 			p4d_populate(&init_mm, p4d, pud);  in modify_p4d_table()
408 		ret = modify_pud_table(p4d, addr, next, add, direct);  in modify_p4d_table()
412 			try_free_pud_table(p4d, addr & P4D_MASK);  in modify_p4d_table()
422 	p4d_t *p4d;  in try_free_p4d_table()  local
433 	p4d = p4d_offset(pgd, start);  in try_free_p4d_table()
434 	for (i = 0; i < PTRS_PER_P4D; i++, p4d++) {  in try_free_p4d_table()
435 		if (!p4d_none(*p4d))  in try_free_p4d_table()
448 	p4d_t *p4d;  in modify_pagetable()  local
460 			p4d = vmem_crst_alloc(_REGION2_ENTRY_EMPTY);  in modify_pagetable()
461 			if (!p4d)  in modify_pagetable()
463 			pgd_populate(&init_mm, pgd, p4d);  in modify_pagetable()
574 	p4d_t *p4d;  in vmem_get_alloc_pte()  local
583 		p4d = vmem_crst_alloc(_REGION2_ENTRY_EMPTY);  in vmem_get_alloc_pte()
584 		if (!p4d)  in vmem_get_alloc_pte()
586 		pgd_populate(&init_mm, pgd, p4d);  in vmem_get_alloc_pte()
588 	p4d = p4d_offset(pgd, addr);  in vmem_get_alloc_pte()
589 	if (p4d_none(*p4d)) {  in vmem_get_alloc_pte()
595 		p4d_populate(&init_mm, p4d, pud);  in vmem_get_alloc_pte()
597 	pud = pud_offset(p4d, addr);  in vmem_get_alloc_pte()