| /* Handle the cache being disabled |
| * |
| * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public Licence |
| * as published by the Free Software Foundation; either version |
| * 2 of the Licence, or (at your option) any later version. |
| */ |
| #include <linux/mm.h> |
| |
| /* |
| * allow userspace to flush the instruction cache |
| */ |
| asmlinkage long sys_cacheflush(unsigned long start, unsigned long end) |
| { |
| if (end < start) |
| return -EINVAL; |
| return 0; |
| } |