172 	struct frame spine[MAX_SPINE_DEPTH];  member
182 	*f = s->spine + s->top;  in top_frame()
229 		struct frame *f = s->spine + ++s->top;  in push_frame()
252 	struct frame *f = s->spine + s->top--;  in pop_frame()
263 		f = s->spine + s->top--;  in unlock_all_frames()
376 	struct ro_spine spine;  in dm_btree_lookup()  local
378 	init_ro_spine(&spine, info);  in dm_btree_lookup()
392 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup()
398 				exit_ro_spine(&spine);  in dm_btree_lookup()
402 			exit_ro_spine(&spine);  in dm_btree_lookup()
408 	exit_ro_spine(&spine);  in dm_btree_lookup()
471 	struct ro_spine spine;  in dm_btree_lookup_next()  local
473 	init_ro_spine(&spine, info);  in dm_btree_lookup_next()
475 		r = btree_lookup_raw(&spine, root, keys[level],  in dm_btree_lookup_next()
491 	exit_ro_spine(&spine);  in dm_btree_lookup_next()
1194 	struct shadow_spine spine;  in btree_get_overwrite_leaf()  local
1197 	init_shadow_spine(&spine, info);  in btree_get_overwrite_leaf()
1198 	r = __btree_get_overwrite_leaf(&spine, root, key, index);  in btree_get_overwrite_leaf()
1200 		*new_root = shadow_root(&spine);  in btree_get_overwrite_leaf()
1201 		*leaf = shadow_current(&spine);  in btree_get_overwrite_leaf()
1207 		spine.count--;  in btree_get_overwrite_leaf()
1209 	exit_shadow_spine(&spine);  in btree_get_overwrite_leaf()
1229 	struct shadow_spine spine;  in insert()  local
1234 	init_shadow_spine(&spine, info);  in insert()
1237 		r = btree_insert_raw(&spine, block, &le64_type, keys[level], &index);  in insert()
1241 		n = dm_block_data(shadow_current(&spine));  in insert()
1264 	r = btree_insert_raw(&spine, block, &info->value_type,  in insert()
1269 	n = dm_block_data(shadow_current(&spine));  in insert()
1296 	*new_root = shadow_root(&spine);  in insert()
1297 	exit_shadow_spine(&spine);  in insert()
1304 	exit_shadow_spine(&spine);  in insert()
1368 	struct ro_spine spine;  in dm_btree_find_key()  local
1370 	init_ro_spine(&spine, info);  in dm_btree_find_key()
1372 		r = find_key(&spine, root, find_highest, result_keys + level,  in dm_btree_find_key()
1383 	exit_ro_spine(&spine);  in dm_btree_find_key()