90 static void __ref zero_pte_populate(pmd_t *pmd, unsigned long addr,  in zero_pte_populate()  argument
93 	pte_t *pte = pte_offset_kernel(pmd, addr);  in zero_pte_populate()
99 	while (addr + PAGE_SIZE <= end) {  in zero_pte_populate()
100 		set_pte_at(&init_mm, addr, pte, zero_pte);  in zero_pte_populate()
101 		addr += PAGE_SIZE;  in zero_pte_populate()
102 		pte = pte_offset_kernel(pmd, addr);  in zero_pte_populate()
106 static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr,  in zero_pmd_populate()  argument
109 	pmd_t *pmd = pmd_offset(pud, addr);  in zero_pmd_populate()
113 		next = pmd_addr_end(addr, end);  in zero_pmd_populate()
115 		if (IS_ALIGNED(addr, PMD_SIZE) && end - addr >= PMD_SIZE) {  in zero_pmd_populate()
124 				p = pte_alloc_one_kernel(&init_mm, addr);  in zero_pmd_populate()
132 		zero_pte_populate(pmd, addr, next);  in zero_pmd_populate()
133 	} while (pmd++, addr = next, addr != end);  in zero_pmd_populate()
138 static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr,  in zero_pud_populate()  argument
141 	pud_t *pud = pud_offset(p4d, addr);  in zero_pud_populate()
145 		next = pud_addr_end(addr, end);  in zero_pud_populate()
146 		if (IS_ALIGNED(addr, PUD_SIZE) && end - addr >= PUD_SIZE) {  in zero_pud_populate()
150 			pmd = pmd_offset(pud, addr);  in zero_pud_populate()
159 				p = pmd_alloc(&init_mm, pud, addr);  in zero_pud_populate()
167 		zero_pmd_populate(pud, addr, next);  in zero_pud_populate()
168 	} while (pud++, addr = next, addr != end);  in zero_pud_populate()
173 static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,  in zero_p4d_populate()  argument
176 	p4d_t *p4d = p4d_offset(pgd, addr);  in zero_p4d_populate()
180 		next = p4d_addr_end(addr, end);  in zero_p4d_populate()
181 		if (IS_ALIGNED(addr, P4D_SIZE) && end - addr >= P4D_SIZE) {  in zero_p4d_populate()
186 			pud = pud_offset(p4d, addr);  in zero_p4d_populate()
188 			pmd = pmd_offset(pud, addr);  in zero_p4d_populate()
198 				p = pud_alloc(&init_mm, p4d, addr);  in zero_p4d_populate()
206 		zero_pud_populate(p4d, addr, next);  in zero_p4d_populate()
207 	} while (p4d++, addr = next, addr != end);  in zero_p4d_populate()
221 	unsigned long addr = (unsigned long)shadow_start;  in kasan_populate_zero_shadow()  local
223 	pgd_t *pgd = pgd_offset_k(addr);  in kasan_populate_zero_shadow()
227 		next = pgd_addr_end(addr, end);  in kasan_populate_zero_shadow()
229 		if (IS_ALIGNED(addr, PGDIR_SIZE) && end - addr >= PGDIR_SIZE) {  in kasan_populate_zero_shadow()
254 			p4d = p4d_offset(pgd, addr);  in kasan_populate_zero_shadow()
256 			pud = pud_offset(p4d, addr);  in kasan_populate_zero_shadow()
258 			pmd = pmd_offset(pud, addr);  in kasan_populate_zero_shadow()
267 				p = p4d_alloc(&init_mm, pgd, addr);  in kasan_populate_zero_shadow()
275 		zero_p4d_populate(pgd, addr, next);  in kasan_populate_zero_shadow()
276 	} while (pgd++, addr = next, addr != end);  in kasan_populate_zero_shadow()
341 static void kasan_remove_pte_table(pte_t *pte, unsigned long addr,  in kasan_remove_pte_table()  argument
346 	for (; addr < end; addr = next, pte++) {  in kasan_remove_pte_table()
347 		next = (addr + PAGE_SIZE) & PAGE_MASK;  in kasan_remove_pte_table()
356 		pte_clear(&init_mm, addr, pte);  in kasan_remove_pte_table()
360 static void kasan_remove_pmd_table(pmd_t *pmd, unsigned long addr,  in kasan_remove_pmd_table()  argument
365 	for (; addr < end; addr = next, pmd++) {  in kasan_remove_pmd_table()
368 		next = pmd_addr_end(addr, end);  in kasan_remove_pmd_table()
374 			if (IS_ALIGNED(addr, PMD_SIZE) &&  in kasan_remove_pmd_table()
379 		pte = pte_offset_kernel(pmd, addr);  in kasan_remove_pmd_table()
380 		kasan_remove_pte_table(pte, addr, next);  in kasan_remove_pmd_table()
385 static void kasan_remove_pud_table(pud_t *pud, unsigned long addr,  in kasan_remove_pud_table()  argument
390 	for (; addr < end; addr = next, pud++) {  in kasan_remove_pud_table()
393 		next = pud_addr_end(addr, end);  in kasan_remove_pud_table()
399 			if (IS_ALIGNED(addr, PUD_SIZE) &&  in kasan_remove_pud_table()
404 		pmd = pmd_offset(pud, addr);  in kasan_remove_pud_table()
406 		kasan_remove_pmd_table(pmd, addr, next);  in kasan_remove_pud_table()
411 static void kasan_remove_p4d_table(p4d_t *p4d, unsigned long addr,  in kasan_remove_p4d_table()  argument
416 	for (; addr < end; addr = next, p4d++) {  in kasan_remove_p4d_table()
419 		next = p4d_addr_end(addr, end);  in kasan_remove_p4d_table()
425 			if (IS_ALIGNED(addr, P4D_SIZE) &&  in kasan_remove_p4d_table()
430 		pud = pud_offset(p4d, addr);  in kasan_remove_p4d_table()
431 		kasan_remove_pud_table(pud, addr, next);  in kasan_remove_p4d_table()
438 	unsigned long addr, end, next;  in kasan_remove_zero_shadow()  local
441 	addr = (unsigned long)kasan_mem_to_shadow(start);  in kasan_remove_zero_shadow()
442 	end = addr + (size >> KASAN_SHADOW_SCALE_SHIFT);  in kasan_remove_zero_shadow()
449 	for (; addr < end; addr = next) {  in kasan_remove_zero_shadow()
452 		next = pgd_addr_end(addr, end);  in kasan_remove_zero_shadow()
454 		pgd = pgd_offset_k(addr);  in kasan_remove_zero_shadow()
459 			if (IS_ALIGNED(addr, PGDIR_SIZE) &&  in kasan_remove_zero_shadow()
465 		p4d = p4d_offset(pgd, addr);  in kasan_remove_zero_shadow()
466 		kasan_remove_p4d_table(p4d, addr, next);  in kasan_remove_zero_shadow()