38 static inline bool kasan_p4d_table(pgd_t pgd)  in kasan_p4d_table()  argument
40 	return pgd_page(pgd) == virt_to_page(lm_alias(kasan_early_shadow_p4d));  in kasan_p4d_table()
43 static inline bool kasan_p4d_table(pgd_t pgd)  in kasan_p4d_table()  argument
183 static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,  in zero_p4d_populate()  argument
186 	p4d_t *p4d = p4d_offset(pgd, addr);  in zero_p4d_populate()
235 	pgd_t *pgd = pgd_offset_k(addr);  in kasan_populate_early_shadow()  local
254 			pgd_populate(&init_mm, pgd,  in kasan_populate_early_shadow()
256 			p4d = p4d_offset(pgd, addr);  in kasan_populate_early_shadow()
268 		if (pgd_none(*pgd)) {  in kasan_populate_early_shadow()
272 				p = p4d_alloc(&init_mm, pgd, addr);  in kasan_populate_early_shadow()
276 				pgd_populate(&init_mm, pgd,  in kasan_populate_early_shadow()
280 		zero_p4d_populate(pgd, addr, next);  in kasan_populate_early_shadow()
281 	} while (pgd++, addr = next, addr != end);  in kasan_populate_early_shadow()
331 static void kasan_free_p4d(p4d_t *p4d_start, pgd_t *pgd)  in kasan_free_p4d()  argument
342 	p4d_free(&init_mm, (p4d_t *)page_to_virt(pgd_page(*pgd)));  in kasan_free_p4d()
343 	pgd_clear(pgd);  in kasan_free_p4d()
447 	pgd_t *pgd;  in kasan_remove_zero_shadow()  local
462 		pgd = pgd_offset_k(addr);  in kasan_remove_zero_shadow()
463 		if (!pgd_present(*pgd))  in kasan_remove_zero_shadow()
466 		if (kasan_p4d_table(*pgd)) {  in kasan_remove_zero_shadow()
469 				pgd_clear(pgd);  in kasan_remove_zero_shadow()
474 		p4d = p4d_offset(pgd, addr);  in kasan_remove_zero_shadow()
476 		kasan_free_p4d(p4d_offset(pgd, 0), pgd);  in kasan_remove_zero_shadow()