36 	struct mount *m = mnt;  in get_peer_under_root()  local
40 		if (m->mnt_ns == ns && is_path_reachable(m, m->mnt.mnt_root, root))  in get_peer_under_root()
41 			return m;  in get_peer_under_root()
43 		m = next_peer(m);  in get_peer_under_root()
44 	} while (m != mnt);  in get_peer_under_root()
57 	struct mount *m;  in get_dominating_id()  local
59 	for (m = mnt->mnt_master; m != NULL; m = m->mnt_master) {  in get_dominating_id()
60 		struct mount *d = get_peer_under_root(m, mnt->mnt_ns, root);  in get_dominating_id()
146 static struct mount *propagation_next(struct mount *m,  in propagation_next()  argument
150 	if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))  in propagation_next()
151 		return first_slave(m);  in propagation_next()
154 		struct mount *master = m->mnt_master;  in propagation_next()
157 			struct mount *next = next_peer(m);  in propagation_next()
159 		} else if (m->mnt_slave.next != &master->mnt_slave_list)  in propagation_next()
160 			return next_slave(m);  in propagation_next()
163 		m = master;  in propagation_next()
167 static struct mount *next_group(struct mount *m, struct mount *origin)  in next_group()  argument
172 			if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))  in next_group()
173 				return first_slave(m);  in next_group()
174 			next = next_peer(m);  in next_group()
175 			if (m->mnt_group_id == origin->mnt_group_id) {  in next_group()
178 			} else if (m->mnt_slave.next != &next->mnt_slave)  in next_group()
180 			m = next;  in next_group()
184 			struct mount *master = m->mnt_master;  in next_group()
185 			if (m->mnt_slave.next != &master->mnt_slave_list)  in next_group()
186 				return next_slave(m);  in next_group()
187 			m = next_peer(master);  in next_group()
190 			if (master->mnt_slave.next == &m->mnt_slave)  in next_group()
192 			m = master;  in next_group()
194 		if (m == origin)  in next_group()
210 static int propagate_one(struct mount *m)  in propagate_one()  argument
215 	if (IS_MNT_NEW(m))  in propagate_one()
218 	if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))  in propagate_one()
220 	if (peers(m, last_dest)) {  in propagate_one()
225 		for (n = m; ; n = p) {  in propagate_one()
242 		if (IS_MNT_SHARED(m))  in propagate_one()
247 	if (m->mnt_ns->user_ns != user_ns)  in propagate_one()
253 	mnt_set_mountpoint(m, mp, child);  in propagate_one()
254 	last_dest = m;  in propagate_one()
256 	if (m->mnt_master != dest_master) {  in propagate_one()
258 		SET_MNT_MARK(m->mnt_master);  in propagate_one()
281 	struct mount *m, *n;  in propagate_mnt()  local
305 	for (m = next_group(dest_mnt, dest_mnt); m;  in propagate_mnt()
306 			m = next_group(m, dest_mnt)) {  in propagate_mnt()
308 		n = m;  in propagate_mnt()
314 		} while (n != m);  in propagate_mnt()
319 		m = n->mnt_parent;  in propagate_mnt()
320 		if (m->mnt_master != dest_mnt->mnt_master)  in propagate_mnt()
321 			CLEAR_MNT_MARK(m->mnt_master);  in propagate_mnt()
347 	struct mount *m, *child;  in propagate_mount_busy()  local
362 	for (m = propagation_next(parent, parent); m;  in propagate_mount_busy()
363 	     		m = propagation_next(m, parent)) {  in propagate_mount_busy()
364 		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);  in propagate_mount_busy()
380 	struct mount *m, *child;  in propagate_mount_unlock()  local
384 	for (m = propagation_next(parent, parent); m;  in propagate_mount_unlock()
385 			m = propagation_next(m, parent)) {  in propagate_mount_unlock()
386 		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);  in propagate_mount_unlock()
398 	struct mount *m;  in mark_umount_candidates()  local
402 	for (m = propagation_next(parent, parent); m;  in mark_umount_candidates()
403 			m = propagation_next(m, parent)) {  in mark_umount_candidates()
404 		struct mount *child = __lookup_mnt_last(&m->mnt,  in mark_umount_candidates()
406 		if (child && (!IS_MNT_LOCKED(child) || IS_MNT_MARKED(m))) {  in mark_umount_candidates()
419 	struct mount *m;  in __propagate_umount()  local
423 	for (m = propagation_next(parent, parent); m;  in __propagate_umount()
424 			m = propagation_next(m, parent)) {  in __propagate_umount()
426 		struct mount *child = __lookup_mnt_last(&m->mnt,  in __propagate_umount()