[PATCH] atomic.h : x86_64 atomic64_add_return

[Mathieu Desnoyers]

atomic64_add_return fix for volatile removal

atomic64_add_return should follow the change done to atomic.h following the
removal of "volatile" in the atomic_t type, just like atomic_add_return.

It applies cleanly on top of my "atomic.h : x86_64" patch posted in this
thread.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h
index e9922ae..3e9f838 100644
--- a/include/asm-x86_64/atomic.h
+++ b/include/asm-x86_64/atomic.h
@@ -375,8 +375,8 @@ static __inline__ long atomic64_add_retu
 	long __i = i;
 	__asm__ __volatile__(
 		LOCK_PREFIX "xaddq %0, %1;"
-		:"=r"(i)
-		:"m"(v->counter), "0"(i));
+		:"+r" (i), "+m" (v->counter)
+		: : "memory");
 	return i + __i;
 }
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