[PATCH 17/23] make atomic_read() and atomic_set() behavior consistent on sh64

From: Chris Snook
Date: Mon Aug 13 2007 - 10:35:58 EST


From: Chris Snook <csnook@xxxxxxxxxx>

Use volatile consistently in atomic.h on sh64.

Signed-off-by: Chris Snook <csnook@xxxxxxxxxx>

--- linux-2.6.23-rc3-orig/include/asm-sh64/atomic.h 2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.23-rc3/include/asm-sh64/atomic.h 2007-08-13 06:08:37.000000000 -0400
@@ -19,12 +19,19 @@
*
*/

-typedef struct { volatile int counter; } atomic_t;
+typedef struct { int counter; } atomic_t;

#define ATOMIC_INIT(i) ( (atomic_t) { (i) } )

-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v,i) ((v)->counter = (i))
+static inline int atomic_read(atomic_t *v)
+{
+ return *(volatile int *)&v->counter;
+}
+
+static inline void atomic_set(atomic_t *v, int i)
+{
+ *(volatile int *)&v->counter = i;
+}

#include <asm/system.h>

-
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