--- a/usr/src/lib/libzfs_core/common/libzfs_core.h	Wed Feb 27 21:13:42 2013 +0100
+++ b/usr/src/lib/libzfs_core/common/libzfs_core.h	Thu Feb 28 12:44:05 2013 -0800
@@ -46,6 +46,10 @@
 int lzc_snaprange_space(const char *firstsnap, const char *lastsnap,
     uint64_t *usedp);
 
+int lzc_hold(nvlist_t *holds, int cleanup_fd, nvlist_t **errlist);
+int lzc_release(nvlist_t *holds, nvlist_t **errlist);
+int lzc_get_holds(const char *snapname, nvlist_t **holdsp);
+
 int lzc_send(const char *snapname, const char *fromsnap, int fd);
 int lzc_receive(const char *snapname, nvlist_t *props, const char *origin,
     boolean_t force, int fd);