--- libev/ev_linuxaio.c	2019/06/25 05:17:50	1.27
+++ libev/ev_linuxaio.c	2019/06/25 06:36:59	1.28
@@ -336,11 +336,10 @@
       linuxaio_parse_events (EV_A_ ring->io_events, tail);
     }
 
-  ECB_MEMORY_FENCE_RELAXED;
+  ECB_MEMORY_FENCE_RELEASE;
   /* as an extension to C, we hope that the volatile will make this atomic and once-only */
   *(volatile unsigned *)&ring->head = tail;
   /* make sure kernel can see our new head value - probably not required */
-  ECB_MEMORY_FENCE_RELEASE;
 
   return 1;
 }