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authorIngo Molnar <mingo@elte.hu>2010-10-07 09:43:38 +0200
committerIngo Molnar <mingo@elte.hu>2010-10-07 09:43:45 +0200
commit556ef63255f1a6f82910a637c4164dbf7d3d1af2 (patch)
treeae209fe4959e0837bf4eb72abc6e02c8a82179a1 /arch/mn10300/mm/cache-disabled.c
parentd4f8f217b8a5d5bd02af979650418dca4caec472 (diff)
parentcb655d0f3d57c23db51b981648e452988c0223f9 (diff)
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Merge commit 'v2.6.36-rc7' into core/rcu
Merge reason: Update from -rc3 to -rc7. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mn10300/mm/cache-disabled.c')
-rw-r--r--arch/mn10300/mm/cache-disabled.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/mn10300/mm/cache-disabled.c b/arch/mn10300/mm/cache-disabled.c
new file mode 100644
index 0000000..f669ea4
--- /dev/null
+++ b/arch/mn10300/mm/cache-disabled.c
@@ -0,0 +1,21 @@
+/* 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;
+}