/* 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; }