819 		   size_t cnt, loff_t *ppos)  in ftrace_event_write()  argument
826 	if (!cnt)  in ftrace_event_write()
836 	read = trace_get_user(&parser, ubuf, cnt, ppos);  in ftrace_event_write()
1002 event_enable_read(struct file *filp, char __user *ubuf, size_t cnt,  in event_enable_read()  argument
1028 	return simple_read_from_buffer(ubuf, cnt, ppos, buf, strlen(buf));  in event_enable_read()
1032 event_enable_write(struct file *filp, const char __user *ubuf, size_t cnt,  in event_enable_write()  argument
1039 	ret = kstrtoul_from_user(ubuf, cnt, 10, &val);  in event_enable_write()
1062 	*ppos += cnt;  in event_enable_write()
1064 	return ret ? ret : cnt;  in event_enable_write()
1068 system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,  in system_enable_read()  argument
1108 	ret = simple_read_from_buffer(ubuf, cnt, ppos, buf, 2);  in system_enable_read()
1114 system_enable_write(struct file *filp, const char __user *ubuf, size_t cnt,  in system_enable_write()  argument
1123 	ret = kstrtoul_from_user(ubuf, cnt, 10, &val);  in system_enable_write()
1145 	ret = cnt;  in system_enable_write()
1148 	*ppos += cnt;  in system_enable_write()
1285 event_id_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)  in event_id_read()  argument
1299 	return simple_read_from_buffer(ubuf, cnt, ppos, buf, len);  in event_id_read()
1303 event_filter_read(struct file *filp, char __user *ubuf, size_t cnt,  in event_filter_read()  argument
1327 		r = simple_read_from_buffer(ubuf, cnt, ppos,  in event_filter_read()
1336 event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,  in event_filter_write()  argument
1343 	if (cnt >= PAGE_SIZE)  in event_filter_write()
1350 	if (copy_from_user(buf, ubuf, cnt)) {  in event_filter_write()
1354 	buf[cnt] = '\0';  in event_filter_write()
1366 	*ppos += cnt;  in event_filter_write()
1368 	return cnt;  in event_filter_write()
1476 subsystem_filter_read(struct file *filp, char __user *ubuf, size_t cnt,  in subsystem_filter_read()  argument
1494 	r = simple_read_from_buffer(ubuf, cnt, ppos,  in subsystem_filter_read()
1503 subsystem_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,  in subsystem_filter_write()  argument
1510 	if (cnt >= PAGE_SIZE)  in subsystem_filter_write()
1517 	if (copy_from_user(buf, ubuf, cnt)) {  in subsystem_filter_write()
1521 	buf[cnt] = '\0';  in subsystem_filter_write()
1528 	*ppos += cnt;  in subsystem_filter_write()
1530 	return cnt;  in subsystem_filter_write()
1534 show_header(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)  in show_header()  argument
1550 	r = simple_read_from_buffer(ubuf, cnt, ppos,  in show_header()
1581 		       size_t cnt, loff_t *ppos)  in ftrace_event_pid_write()  argument
1596 	if (!cnt)  in ftrace_event_pid_write()
1611 	while (cnt > 0) {  in ftrace_event_pid_write()
1615 		ret = trace_get_user(&parser, ubuf, cnt, &this_pos);  in ftrace_event_pid_write()
1621 		cnt -= ret;  in ftrace_event_pid_write()