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-rw-r--r--sys/powerpc/include/atomic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/powerpc/include/atomic.h b/sys/powerpc/include/atomic.h
index baac400..3460443 100644
--- a/sys/powerpc/include/atomic.h
+++ b/sys/powerpc/include/atomic.h
@@ -52,7 +52,7 @@
#define rmb() __asm __volatile("lwsync" : : : "memory")
#define wmb() __asm __volatile("lwsync" : : : "memory")
#define __ATOMIC_REL() __asm __volatile("lwsync" : : : "memory")
-#define __ATOMIC_ACQ() __asm __volatile("lwsync" : : : "memory")
+#define __ATOMIC_ACQ() __asm __volatile("isync" : : : "memory")
#else
#define mb() __asm __volatile("sync" : : : "memory")
#define rmb() __asm __volatile("sync" : : : "memory")
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