[RFC PATCH] x86: Use volatile semantics for atomic_set()

[Pranith Kumar]

All the atomic operations have volatile semantics to prevent compiler
reordering. Enforce the same semantics for atomic_set() too.

Signed-off-by: Pranith Kumar <bobby.prani@xxxxxxxxx>
---
 arch/x86/include/asm/atomic.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index bf20c81..fa92e93 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -36,7 +36,7 @@ static inline int atomic_read(const atomic_t *v)
  */
 static inline void atomic_set(atomic_t *v, int i)
 {
-	v->counter = i;
+	ACCESS_ONCE(v->counter) = i;
 }
 
 /**
-- 
2.1.0

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