[PATCH 9/23] make atomic_read() and atomic_set() behavior consistent on i386

[Chris Snook <csnook@redhat.com>]

From: Chris Snook <csnook@redhat.com>

Use volatile consistently in atomic.h on i386.

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

--- linux-2.6.23-rc3-orig/include/asm-i386/atomic.h	2007-07-08 19:32:17.000000000 -0400
+++ linux-2.6.23-rc3/include/asm-i386/atomic.h	2007-08-13 05:31:45.000000000 -0400
@@ -25,7 +25,10 @@ typedef struct { int counter; } atomic_t
  * 
  * Atomically reads the value of @v.
  */ 
-#define atomic_read(v)		((v)->counter)
+static __inline__ int atomic_read(atomic_t *v)
+{
+        return *(volatile int *)&v->counter;
+}
 
 /**
  * atomic_set - set atomic variable
@@ -34,7 +37,10 @@ typedef struct { int counter; } atomic_t
  * 
  * Atomically sets the value of @v to @i.
  */ 
-#define atomic_set(v,i)		(((v)->counter) = (i))
+static __inline__ void atomic_set(atomic_t *v, int i)
+{
+        *(volatile int *)&v->counter = i;
+}
 
 /**
  * atomic_add - add integer to atomic variable
-
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