atomic_t: unify all arch definitions

The atomic_t type cannot currently be used in some header files because it
would create an include loop with asm/atomic.h.  Move the type definition
to linux/types.h to break the loop.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/asm-m32r/atomic.h

@@ -9,6 +9,7 @@
  *    Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
  */
 
+#include <linux/types.h>
 #include <asm/assembler.h>
 #include <asm/system.h>
 
@@ -17,13 +18,6 @@
  * resource counting etc..
  */
 
-/*
- * Make sure gcc doesn't try to be clever and move things around
- * on us. We need to use _exactly_ the address the user gave us,
- * not some alias that contains the same information.
- */
-typedef struct { volatile int counter; } atomic_t;
-
 #define ATOMIC_INIT(i)	{ (i) }
 
 /**