219  * A -1 return indicates ref1 is a 'lower' block than ref2, while 1
223 			      const struct prelim_ref *ref2)  in prelim_ref_compare()  argument
225 	if (ref1->level < ref2->level)  in prelim_ref_compare()
227 	if (ref1->level > ref2->level)  in prelim_ref_compare()
229 	if (ref1->root_id < ref2->root_id)  in prelim_ref_compare()
231 	if (ref1->root_id > ref2->root_id)  in prelim_ref_compare()
233 	if (ref1->key_for_search.type < ref2->key_for_search.type)  in prelim_ref_compare()
235 	if (ref1->key_for_search.type > ref2->key_for_search.type)  in prelim_ref_compare()
237 	if (ref1->key_for_search.objectid < ref2->key_for_search.objectid)  in prelim_ref_compare()
239 	if (ref1->key_for_search.objectid > ref2->key_for_search.objectid)  in prelim_ref_compare()
241 	if (ref1->key_for_search.offset < ref2->key_for_search.offset)  in prelim_ref_compare()
243 	if (ref1->key_for_search.offset > ref2->key_for_search.offset)  in prelim_ref_compare()
245 	if (ref1->parent < ref2->parent)  in prelim_ref_compare()
247 	if (ref1->parent > ref2->parent)  in prelim_ref_compare()