| David Howells | 62bdb28 | 2010-09-29 01:57:02 +0100 | [diff] [blame] | 1 | /* Handle the cache being disabled |
| 2 | * |
| 3 | * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. |
| 4 | * Written by David Howells (dhowells@redhat.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public Licence |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the Licence, or (at your option) any later version. |
| 10 | */ |
| 11 | #include <linux/mm.h> |
| 12 | |
| 13 | /* |
| 14 | * allow userspace to flush the instruction cache |
| 15 | */ |
| 16 | asmlinkage long sys_cacheflush(unsigned long start, unsigned long end) |
| 17 | { |
| 18 | if (end < start) |
| 19 | return -EINVAL; |
| 20 | return 0; |
| 21 | } |