174 	struct frame spine[MAX_SPINE_DEPTH];  member
184 	*f = s->spine + s->top;  in top_frame()
231 		struct frame *f = s->spine + ++s->top;  in push_frame()
254 	struct frame *f = s->spine + s->top--;  in pop_frame()
265 		f = s->spine + s->top--;  in unlock_all_frames()
381 	struct ro_spine spine;  in dm_btree_lookup()  local
383 	init_ro_spine(&spine, info);  in dm_btree_lookup()
397 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup()
403 				exit_ro_spine(&spine);  in dm_btree_lookup()
407 			exit_ro_spine(&spine);  in dm_btree_lookup()
413 	exit_ro_spine(&spine);  in dm_btree_lookup()
476 	struct ro_spine spine;  in dm_btree_lookup_next()  local
478 	init_ro_spine(&spine, info);  in dm_btree_lookup_next()
480 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup_next()
496 	exit_ro_spine(&spine);  in dm_btree_lookup_next()
770 	struct shadow_spine spine;  in insert()  local
775 	init_shadow_spine(&spine, info);  in insert()
778 		r = btree_insert_raw(&spine, block, &le64_type, keys[level], &index);  in insert()
782 		n = dm_block_data(shadow_current(&spine));  in insert()
805 	r = btree_insert_raw(&spine, block, &info->value_type,  in insert()
810 	n = dm_block_data(shadow_current(&spine));  in insert()
837 	*new_root = shadow_root(&spine);  in insert()
838 	exit_shadow_spine(&spine);  in insert()
845 	exit_shadow_spine(&spine);  in insert()
909 	struct ro_spine spine;  in dm_btree_find_key()  local
911 	init_ro_spine(&spine, info);  in dm_btree_find_key()
913 		r = find_key(&spine, root, find_highest, result_keys + level,  in dm_btree_find_key()
924 	exit_ro_spine(&spine);  in dm_btree_find_key()