65 	int n, faulted;  in do_op_one_page()  local
79 		n = (*op)(addr, len, arg);  in do_op_one_page()
81 		n = -1;  in do_op_one_page()
87 	return n;  in do_op_one_page()
93 	int size, remain, n;  in buffer_op()  local
98 	n = do_op_one_page(addr, size, is_write, op, arg);  in buffer_op()
99 	if (n != 0) {  in buffer_op()
100 		remain = (n < 0 ? remain : 0);  in buffer_op()
110 		n = do_op_one_page(addr, PAGE_SIZE, is_write, op, arg);  in buffer_op()
111 		if (n != 0) {  in buffer_op()
112 			remain = (n < 0 ? remain : 0);  in buffer_op()
122 	n = do_op_one_page(addr, remain, is_write, op, arg);  in buffer_op()
123 	if (n != 0) {  in buffer_op()
124 		remain = (n < 0 ? remain : 0);  in buffer_op()
142 int copy_from_user(void *to, const void __user *from, int n)  in copy_from_user()  argument
145 		memcpy(to, (__force void*)from, n);  in copy_from_user()
149 	return access_ok(VERIFY_READ, from, n) ?  in copy_from_user()
150 	       buffer_op((unsigned long) from, n, 0, copy_chunk_from_user, &to):  in copy_from_user()
151 	       n;  in copy_from_user()
164 int copy_to_user(void __user *to, const void *from, int n)  in copy_to_user()  argument
167 		memcpy((__force void *) to, from, n);  in copy_to_user()
171 	return access_ok(VERIFY_WRITE, to, n) ?  in copy_to_user()
172 	       buffer_op((unsigned long) to, n, 1, copy_chunk_to_user, &from) :  in copy_to_user()
173 	       n;  in copy_to_user()
180 	int n;  in strncpy_chunk_from_user()  local
183 	n = strnlen(to, len);  in strncpy_chunk_from_user()
184 	*to_ptr += n;  in strncpy_chunk_from_user()
186 	if (n < len)  in strncpy_chunk_from_user()
193 	int n;  in strncpy_from_user()  local
204 	n = buffer_op((unsigned long) src, count, 0, strncpy_chunk_from_user,  in strncpy_from_user()
206 	if (n != 0)  in strncpy_from_user()
237 	int *len_ptr = arg, n;  in strnlen_chunk()  local
239 	n = strnlen((void *) str, len);  in strnlen_chunk()
240 	*len_ptr += n;  in strnlen_chunk()
242 	if (n < len)  in strnlen_chunk()
249 	int count = 0, n;  in strnlen_user()  local
254 	n = buffer_op((unsigned long) str, len, 0, strnlen_chunk, &count);  in strnlen_user()
255 	if (n == 0)  in strnlen_user()