86 	struct rb_node *parent = NULL;  in __insert_snap_realm()  local
90 		parent = *p;  in __insert_snap_realm()
91 		r = rb_entry(parent, struct ceph_snap_realm, node);  in __insert_snap_realm()
100 	rb_link_node(&new->node, parent, p);  in __insert_snap_realm()
170 	if (realm->parent) {  in __destroy_snap_realm()
172 		__put_snap_realm(mdsc, realm->parent);  in __destroy_snap_realm()
256 	struct ceph_snap_realm *parent;  in adjust_snap_realm_parent()  local
261 	parent = ceph_lookup_snap_realm(mdsc, parentino);  in adjust_snap_realm_parent()
262 	if (!parent) {  in adjust_snap_realm_parent()
263 		parent = ceph_create_snap_realm(mdsc, parentino);  in adjust_snap_realm_parent()
264 		if (IS_ERR(parent))  in adjust_snap_realm_parent()
265 			return PTR_ERR(parent);  in adjust_snap_realm_parent()
268 	     realm->ino, realm, realm->parent_ino, realm->parent,  in adjust_snap_realm_parent()
269 	     parentino, parent);  in adjust_snap_realm_parent()
270 	if (realm->parent) {  in adjust_snap_realm_parent()
272 		ceph_put_snap_realm(mdsc, realm->parent);  in adjust_snap_realm_parent()
275 	realm->parent = parent;  in adjust_snap_realm_parent()
276 	ceph_get_snap_realm(mdsc, parent);  in adjust_snap_realm_parent()
277 	list_add(&realm->child_item, &parent->children);  in adjust_snap_realm_parent()
296 	struct ceph_snap_realm *parent = realm->parent;  in build_snap_context()  local
307 	if (parent) {  in build_snap_context()
308 		if (!parent->cached_context) {  in build_snap_context()
309 			err = build_snap_context(parent);  in build_snap_context()
313 		num += parent->cached_context->num_snaps;  in build_snap_context()
322 	    (!parent ||  in build_snap_context()
323 	     realm->cached_context->seq >= parent->cached_context->seq)) {  in build_snap_context()
344 	if (parent) {  in build_snap_context()
347 		for (i = 0; i < parent->cached_context->num_snaps; i++)  in build_snap_context()
348 			if (parent->cached_context->snaps[i] >=  in build_snap_context()
351 					parent->cached_context->snaps[i];  in build_snap_context()
352 		if (parent->cached_context->seq > snapc->seq)  in build_snap_context()
353 			snapc->seq = parent->cached_context->seq;  in build_snap_context()
653 	err = adjust_snap_realm_parent(mdsc, realm, le64_to_cpu(ri->parent));  in ceph_update_snap_trace()