int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **);
+int zvol_create_link(libzfs_handle_t *, const char *);
+int zvol_remove_link(libzfs_handle_t *, const char *);
boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *);
int zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,