Messages in this thread Patch in this message | | | From | Pranith Kumar <> | Subject | [RFC PATCH] x86: Use volatile semantics for atomic_set() | Date | Mon, 22 Sep 2014 15:39:21 -0400 |
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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@gmail.com> --- 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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