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[PATCH] atomic.h : x86_64 atomic64_add_return
- From: Mathieu Desnoyers <compudj at krystal dot dyndns dot org>
- To: linux-kernel at vger dot kernel dot org, Andrew Morton <akpm at osdl dot org>, Ingo Molnar <mingo at redhat dot com>, Greg Kroah-Hartman <gregkh at suse dot de>, Christoph Hellwig <hch at infradead dot org>
- Cc: Douglas Niehaus <niehaus at eecs dot ku dot edu>, "Martin J. Bligh" <mbligh at mbligh dot org>, ltt-dev at shafik dot org, Thomas Gleixner <tglx at linutronix dot de>, systemtap at sources dot redhat dot com
- Date: Thu, 21 Dec 2006 14:42:08 -0500
- Subject: [PATCH] atomic.h : x86_64 atomic64_add_return
- References: <20061221000351.GF28643@Krystal> <20061221001405.GO28643@Krystal>
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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