[PATCH] First cut syslet async io support

Doesn't seem to perform as well as expected, needs investigation.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/init.c b/init.c
index e09a1f9..f4125b1 100644
--- a/init.c
+++ b/init.c
@@ -81,7 +81,7 @@
 		.help	= "IO engine to use",
 		.def	= "sync",
 		.posval	= { "sync", "libaio", "posixaio", "mmap", "splice",
-				"sg", "null", "net", },
+				"sg", "null", "net", "syslet-rw" },
 	},
 	{
 		.name	= "iodepth",