33 static inline bool kasan_p4d_table(pgd_t pgd)  in kasan_p4d_table()  argument
35 	return pgd_page(pgd) == virt_to_page(lm_alias(kasan_early_shadow_p4d));  in kasan_p4d_table()
38 static inline bool kasan_p4d_table(pgd_t pgd)  in kasan_p4d_table()  argument
188 static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,  in zero_p4d_populate()  argument
191 	p4d_t *p4d = p4d_offset(pgd, addr);  in zero_p4d_populate()
241 	pgd_t *pgd = pgd_offset_k(addr);  in kasan_populate_early_shadow()  local
260 			pgd_populate(&init_mm, pgd,  in kasan_populate_early_shadow()
262 			p4d = p4d_offset(pgd, addr);  in kasan_populate_early_shadow()
274 		if (pgd_none(*pgd)) {  in kasan_populate_early_shadow()
278 				p = p4d_alloc(&init_mm, pgd, addr);  in kasan_populate_early_shadow()
282 				pgd_populate(&init_mm, pgd,  in kasan_populate_early_shadow()
286 		zero_p4d_populate(pgd, addr, next);  in kasan_populate_early_shadow()
287 	} while (pgd++, addr = next, addr != end);  in kasan_populate_early_shadow()
337 static void kasan_free_p4d(p4d_t *p4d_start, pgd_t *pgd)  in kasan_free_p4d()  argument
348 	p4d_free(&init_mm, (p4d_t *)page_to_virt(pgd_page(*pgd)));  in kasan_free_p4d()
349 	pgd_clear(pgd);  in kasan_free_p4d()
456 	pgd_t *pgd;  in kasan_remove_zero_shadow()  local
470 		pgd = pgd_offset_k(addr);  in kasan_remove_zero_shadow()
471 		if (!pgd_present(*pgd))  in kasan_remove_zero_shadow()
474 		if (kasan_p4d_table(*pgd)) {  in kasan_remove_zero_shadow()
477 				pgd_clear(pgd);  in kasan_remove_zero_shadow()
482 		p4d = p4d_offset(pgd, addr);  in kasan_remove_zero_shadow()
484 		kasan_free_p4d(p4d_offset(pgd, 0), pgd);  in kasan_remove_zero_shadow()