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-rw-r--r--include/asm-generic/atomic.h4
-rw-r--r--include/linux/atomic.h1
2 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index a8fad943d37b..90e23ea90d0d 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -1,5 +1,7 @@
/*
- * Generic C implementation of atomic counter operations
+ * Generic C implementation of atomic counter operations. Usable on
+ * UP systems only. Do not include in machine independent code.
+ *
* Originally implemented for MN10300.
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 42e7f6372ce2..42b77b5446d2 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -1,3 +1,4 @@
+/* Atomic operations usable in machine independent code */
#ifndef _LINUX_ATOMIC_H
#define _LINUX_ATOMIC_H
#include <asm/atomic.h>