add X_SNAPSHOT op

diff --git a/xseg/xseg/xseg.h b/xseg/xseg/xseg.h
index 861fa3d..3514902 100644 (file)
--- a/xseg/xseg/xseg.h
+++ b/xseg/xseg/xseg.h
@@ -224,6 +224,7 @@ struct xseg_task {
 #define X_MAPW     13
 #define X_OPEN     14
 #define X_CLOSE    15
+#define        X_SNAPSHOT 16
 
 /* FLAGS */
 #define XF_NOSYNC (1 << 0)