92 static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,  in zero_pte_populate()  argument
95 	pte_t *pte = pte_offset_kernel(pmd, addr);  in zero_pte_populate()
102 	while (addr + PAGE_SIZE <= end) {  in zero_pte_populate()
103 		set_pte_at(&init_mm, addr, pte, zero_pte);  in zero_pte_populate()
104 		addr += PAGE_SIZE;  in zero_pte_populate()
105 		pte = pte_offset_kernel(pmd, addr);  in zero_pte_populate()
109 static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,  in zero_pmd_populate()  argument
112 	pmd_t *pmd = pmd_offset(pud, addr);  in zero_pmd_populate()
116 		next = pmd_addr_end(addr, end);  in zero_pmd_populate()
118 		if (IS_ALIGNED(addr, PMD_SIZE) && end - addr >= PMD_SIZE) {  in zero_pmd_populate()
136 		zero_pte_populate(pmd, addr, next);  in zero_pmd_populate()
137 	} while (pmd++, addr = next, addr != end);  in zero_pmd_populate()
142 void __weak __meminit pmd_init(void *addr)  in pmd_init()  argument
146 static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr,  in zero_pud_populate()  argument
149 	pud_t *pud = pud_offset(p4d, addr);  in zero_pud_populate()
153 		next = pud_addr_end(addr, end);  in zero_pud_populate()
154 		if (IS_ALIGNED(addr, PUD_SIZE) && end - addr >= PUD_SIZE) {  in zero_pud_populate()
159 			pmd = pmd_offset(pud, addr);  in zero_pud_populate()
169 				p = pmd_alloc(&init_mm, pud, addr);  in zero_pud_populate()
178 		zero_pmd_populate(pud, addr, next);  in zero_pud_populate()
179 	} while (pud++, addr = next, addr != end);  in zero_pud_populate()
184 void __weak __meminit pud_init(void *addr)  in pud_init()  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()
195 		next = p4d_addr_end(addr, end);  in zero_p4d_populate()
196 		if (IS_ALIGNED(addr, P4D_SIZE) && end - addr >= P4D_SIZE) {  in zero_p4d_populate()
202 			pud = pud_offset(p4d, addr);  in zero_p4d_populate()
205 			pmd = pmd_offset(pud, addr);  in zero_p4d_populate()
215 				p = pud_alloc(&init_mm, p4d, addr);  in zero_p4d_populate()
224 		zero_pud_populate(p4d, addr, next);  in zero_p4d_populate()
225 	} while (p4d++, addr = next, addr != end);  in zero_p4d_populate()
239 	unsigned long addr = (unsigned long)shadow_start;  in kasan_populate_early_shadow()  local
241 	pgd_t *pgd = pgd_offset_k(addr);  in kasan_populate_early_shadow()
245 		next = pgd_addr_end(addr, end);  in kasan_populate_early_shadow()
247 		if (IS_ALIGNED(addr, PGDIR_SIZE) && end - addr >= PGDIR_SIZE) {  in kasan_populate_early_shadow()
262 			p4d = p4d_offset(pgd, addr);  in kasan_populate_early_shadow()
265 			pud = pud_offset(p4d, addr);  in kasan_populate_early_shadow()
268 			pmd = pmd_offset(pud, addr);  in kasan_populate_early_shadow()
278 				p = p4d_alloc(&init_mm, pgd, addr);  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()
352 static void kasan_remove_pte_table(pte_t *pte, unsigned long addr,  in kasan_remove_pte_table()  argument
358 	for (; addr < end; addr = next, pte++) {  in kasan_remove_pte_table()
359 		next = (addr + PAGE_SIZE) & PAGE_MASK;  in kasan_remove_pte_table()
370 		pte_clear(&init_mm, addr, pte);  in kasan_remove_pte_table()
374 static void kasan_remove_pmd_table(pmd_t *pmd, unsigned long addr,  in kasan_remove_pmd_table()  argument
379 	for (; addr < end; addr = next, pmd++) {  in kasan_remove_pmd_table()
382 		next = pmd_addr_end(addr, end);  in kasan_remove_pmd_table()
388 			if (IS_ALIGNED(addr, PMD_SIZE) &&  in kasan_remove_pmd_table()
394 		pte = pte_offset_kernel(pmd, addr);  in kasan_remove_pmd_table()
395 		kasan_remove_pte_table(pte, addr, next);  in kasan_remove_pmd_table()
400 static void kasan_remove_pud_table(pud_t *pud, unsigned long addr,  in kasan_remove_pud_table()  argument
405 	for (; addr < end; addr = next, pud++) {  in kasan_remove_pud_table()
408 		next = pud_addr_end(addr, end);  in kasan_remove_pud_table()
414 			if (IS_ALIGNED(addr, PUD_SIZE) &&  in kasan_remove_pud_table()
420 		pmd = pmd_offset(pud, addr);  in kasan_remove_pud_table()
422 		kasan_remove_pmd_table(pmd, addr, next);  in kasan_remove_pud_table()
427 static void kasan_remove_p4d_table(p4d_t *p4d, unsigned long addr,  in kasan_remove_p4d_table()  argument
432 	for (; addr < end; addr = next, p4d++) {  in kasan_remove_p4d_table()
435 		next = p4d_addr_end(addr, end);  in kasan_remove_p4d_table()
441 			if (IS_ALIGNED(addr, P4D_SIZE) &&  in kasan_remove_p4d_table()
447 		pud = pud_offset(p4d, addr);  in kasan_remove_p4d_table()
448 		kasan_remove_pud_table(pud, addr, next);  in kasan_remove_p4d_table()
455 	unsigned long addr, end, next;  in kasan_remove_zero_shadow()  local
458 	addr = (unsigned long)kasan_mem_to_shadow(start);  in kasan_remove_zero_shadow()
459 	end = addr + (size >> KASAN_SHADOW_SCALE_SHIFT);  in kasan_remove_zero_shadow()
465 	for (; addr < end; addr = next) {  in kasan_remove_zero_shadow()
468 		next = pgd_addr_end(addr, end);  in kasan_remove_zero_shadow()
470 		pgd = pgd_offset_k(addr);  in kasan_remove_zero_shadow()
475 			if (IS_ALIGNED(addr, PGDIR_SIZE) &&  in kasan_remove_zero_shadow()
482 		p4d = p4d_offset(pgd, addr);  in kasan_remove_zero_shadow()
483 		kasan_remove_p4d_table(p4d, addr, next);  in kasan_remove_zero_shadow()