234 static int temp_pgtable_map_pud(p4d_t *dst_p4dp, p4d_t *src_p4dp, unsigned long start,  in temp_pgtable_map_pud()  argument
242 	if (p4d_none(READ_ONCE(*dst_p4dp))) {  in temp_pgtable_map_pud()
247 		p4d_populate(NULL, dst_p4dp, dst_pudp);  in temp_pgtable_map_pud()
250 	dst_pudp = pud_offset(dst_p4dp, start);  in temp_pgtable_map_pud()
278 	p4d_t *dst_p4dp;  in temp_pgtable_map_p4d()  local
282 		dst_p4dp = (p4d_t *)get_safe_page(GFP_ATOMIC);  in temp_pgtable_map_p4d()
283 		if (!dst_p4dp)  in temp_pgtable_map_p4d()
286 		pgd_populate(NULL, dst_pgdp, dst_p4dp);  in temp_pgtable_map_p4d()
289 	dst_p4dp = p4d_offset(dst_pgdp, start);  in temp_pgtable_map_p4d()
301 			set_p4d(dst_p4dp, __p4d(p4d_val(p4d) | pgprot_val(prot)));  in temp_pgtable_map_p4d()
303 			ret = temp_pgtable_map_pud(dst_p4dp, src_p4dp, start, next, prot);  in temp_pgtable_map_p4d()
307 	} while (dst_p4dp++, src_p4dp++, start = next, start != end);  in temp_pgtable_map_p4d()