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()
378 	struct ro_spine spine;  in dm_btree_lookup()  local
380 	init_ro_spine(&spine, info);  in dm_btree_lookup()
394 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup()
400 				exit_ro_spine(&spine);  in dm_btree_lookup()
404 			exit_ro_spine(&spine);  in dm_btree_lookup()
410 	exit_ro_spine(&spine);  in dm_btree_lookup()
473 	struct ro_spine spine;  in dm_btree_lookup_next()  local
475 	init_ro_spine(&spine, info);  in dm_btree_lookup_next()
477 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup_next()
493 	exit_ro_spine(&spine);  in dm_btree_lookup_next()
1196 	struct shadow_spine spine;  in btree_get_overwrite_leaf()  local
1199 	init_shadow_spine(&spine, info);  in btree_get_overwrite_leaf()
1200 	r = __btree_get_overwrite_leaf(&spine, root, key, index);  in btree_get_overwrite_leaf()
1202 		*new_root = shadow_root(&spine);  in btree_get_overwrite_leaf()
1203 		*leaf = shadow_current(&spine);  in btree_get_overwrite_leaf()
1209 		spine.count--;  in btree_get_overwrite_leaf()
1211 	exit_shadow_spine(&spine);  in btree_get_overwrite_leaf()
1231 	struct shadow_spine spine;  in insert()  local
1236 	init_shadow_spine(&spine, info);  in insert()
1239 		r = btree_insert_raw(&spine, block, &le64_type, keys[level], &index);  in insert()
1243 		n = dm_block_data(shadow_current(&spine));  in insert()
1266 	r = btree_insert_raw(&spine, block, &info->value_type,  in insert()
1271 	n = dm_block_data(shadow_current(&spine));  in insert()
1298 	*new_root = shadow_root(&spine);  in insert()
1299 	exit_shadow_spine(&spine);  in insert()
1306 	exit_shadow_spine(&spine);  in insert()
1370 	struct ro_spine spine;  in dm_btree_find_key()  local
1372 	init_ro_spine(&spine, info);  in dm_btree_find_key()
1374 		r = find_key(&spine, root, find_highest, result_keys + level,  in dm_btree_find_key()
1385 	exit_ro_spine(&spine);  in dm_btree_find_key()