| /* | |
| * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License | |
| * as published by the Free Software Foundation, version 2. | |
| * | |
| * This program is distributed in the hope that it will be useful, but | |
| * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
| * NON INFRINGEMENT. See the GNU General Public License for | |
| * more details. | |
| */ | |
| #include <linux/uaccess.h> | |
| #include <linux/module.h> | |
| int __range_ok(unsigned long addr, unsigned long size) | |
| { | |
| unsigned long limit = current_thread_info()->addr_limit.seg; | |
| return !((addr < limit && size <= limit - addr) || | |
| is_arch_mappable_range(addr, size)); | |
| } | |
| EXPORT_SYMBOL(__range_ok); |