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Subject[PATCH 3/23] make atomic_read() and atomic_set() behavior consistent on arm
From: Chris Snook <csnook@redhat.com>

Use volatile consistently in atomic.h on arm.

Signed-off-by: Chris Snook <csnook@redhat.com>

--- linux-2.6.23-rc3-orig/include/asm-arm/atomic.h 2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.23-rc3/include/asm-arm/atomic.h 2007-08-13 04:44:50.000000000 -0400
@@ -14,13 +14,16 @@
#include <linux/compiler.h>
#include <asm/system.h>

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

#define ATOMIC_INIT(i) { (i) }

#ifdef __KERNEL__

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

#if __LINUX_ARM_ARCH__ >= 6

-
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