544 	mntget(path->mnt);  in path_get()
558 	mntput(path->mnt);  in path_put()
598 	p->path.mnt = NULL;  in __set_nameidata()
646 static bool path_connected(struct vfsmount *mnt, struct dentry *dentry)  in path_connected()  argument
648 	struct super_block *sb = mnt->mnt_sb;  in path_connected()
651 	if (mnt->mnt_root == sb->s_root)  in path_connected()
654 	return is_subdir(dentry, mnt->mnt_root);  in path_connected()
684 	nd->path.mnt = NULL;  in terminate_walk()
691 	int res = __legitimize_mnt(path->mnt, mseq);  in __legitimize_path()
694 			path->mnt = NULL;  in __legitimize_path()
737 	if (!nd->root.mnt && (nd->flags & LOOKUP_IS_SCOPED))  in legitimize_root()
740 	if (!nd->root.mnt || (nd->state & ND_ROOT_PRESET))  in legitimize_root()
786 	nd->path.mnt = NULL;  in try_to_unlazy()
813 	if (unlikely(!legitimize_mnt(nd->path.mnt, nd->m_seq)))  in try_to_unlazy_next()
839 	nd->path.mnt = NULL;  in try_to_unlazy_next()
881 				nd->root.mnt = NULL;  in complete_walk()
957 		if (nd->path.mnt != NULL && nd->path.mnt != nd->root.mnt)  in nd_jump_root()
960 	if (!nd->root.mnt) {  in nd_jump_root()
997 		if (nd->path.mnt != path->mnt)  in nd_jump_link()
1051 	mnt_userns = mnt_user_ns(nd->path.mnt);  in may_follow_link()
1217 	struct mount *mnt = real_mount(path->mnt);  in follow_up()  local
1222 	parent = mnt->mnt_parent;  in follow_up()
1223 	if (parent == mnt) {  in follow_up()
1227 	mntget(&parent->mnt);  in follow_up()
1228 	mountpoint = dget(mnt->mnt_mountpoint);  in follow_up()
1232 	mntput(path->mnt);  in follow_up()
1233 	path->mnt = &parent->mnt;  in follow_up()
1246 			     root->mnt == &m->mnt))  in choose_mountpoint_rcu()
1248 		if (mountpoint != m->mnt.mnt_root) {  in choose_mountpoint_rcu()
1249 			path->mnt = &m->mnt;  in choose_mountpoint_rcu()
1323 	struct vfsmount *mnt = path->mnt;  in __traverse_mounts()  local
1342 					mntput(path->mnt);  in __traverse_mounts()
1343 				path->mnt = mounted;  in __traverse_mounts()
1365 	if (need_mntput && path->mnt == mnt)  in __traverse_mounts()
1366 		mntput(path->mnt);  in __traverse_mounts()
1395 		mntput(path->mnt);  in follow_down_one()
1396 		path->mnt = mounted;  in follow_down_one()
1411 	struct vfsmount *mnt = path->mnt;  in follow_down()  local
1415 	if (path->mnt != mnt)  in follow_down()
1416 		mntput(mnt);  in follow_down()
1450 			struct mount *mounted = __lookup_mnt(path->mnt, dentry);  in __follow_mount_rcu()
1452 				path->mnt = &mounted->mnt;  in __follow_mount_rcu()
1453 				dentry = path->dentry = mounted->mnt.mnt_root;  in __follow_mount_rcu()
1480 	path->mnt = nd->path.mnt;  in handle_mounts()
1491 		path->mnt = nd->path.mnt;  in handle_mounts()
1503 		if (path->mnt != nd->path.mnt)  in handle_mounts()
1504 			mntput(path->mnt);  in handle_mounts()
1742 			unlikely(link->mnt->mnt_flags & MNT_NOSYMFOLLOW))  in pick_link()
1810 			if (nd->path.mnt != path.mnt)  in step_into()
1811 				mntput(nd->path.mnt);  in step_into()
1823 		if (path.mnt == nd->path.mnt)  in step_into()
1824 			mntget(path.mnt);  in step_into()
1837 	if (unlikely(nd->path.dentry == nd->path.mnt->mnt_root)) {  in follow_dotdot_rcu()
1840 		if (!choose_mountpoint_rcu(real_mount(nd->path.mnt),  in follow_dotdot_rcu()
1858 	if (unlikely(!path_connected(nd->path.mnt, parent)))  in follow_dotdot_rcu()
1877 	if (unlikely(nd->path.dentry == nd->path.mnt->mnt_root)) {  in follow_dotdot()
1880 		if (!choose_mountpoint(real_mount(nd->path.mnt),  in follow_dotdot()
1891 	if (unlikely(!path_connected(nd->path.mnt, parent))) {  in follow_dotdot()
1914 		if (!nd->root.mnt) {  in handle_dots()
2238 		mnt_userns = mnt_user_ns(nd->path.mnt);  in link_path_walk()
2355 	nd->root.mnt = NULL;  in path_init()
2463 		nd->path.mnt = NULL;  in path_lookupat()
2501 		nd->path.mnt = NULL;  in path_parentat()
2584 int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt,  in vfs_path_lookup()  argument
2589 	struct path root = {.mnt = mnt, .dentry = dentry};  in vfs_path_lookup()
2780 	if (unlikely(!path_connected(path->mnt, parent))) {  in path_pts()
3011 	return !(path->mnt->mnt_flags & MNT_NODEV) &&  in may_open_dev()
3012 		!(path->mnt->mnt_sb->s_iflags & SB_I_NODEV);  in may_open_dev()
3143 	file->f_path.mnt = nd->path.mnt;  in atomic_open()
3238 	mnt_userns = mnt_user_ns(nd->path.mnt);  in lookup_open()
3341 		got_write = !mnt_want_write(nd->path.mnt);  in open_last_lookups()
3361 		mnt_drop_write(nd->path.mnt);  in open_last_lookups()
3400 	mnt_userns = mnt_user_ns(nd->path.mnt);  in do_open()
3421 		error = mnt_want_write(nd->path.mnt);  in do_open()
3438 		mnt_drop_write(nd->path.mnt);  in do_open()
3507 	error = mnt_want_write(path.mnt);  in do_tmpfile()
3510 	mnt_userns = mnt_user_ns(path.mnt);  in do_tmpfile()
3523 	mnt_drop_write(path.mnt);  in do_tmpfile()
3651 	err2 = mnt_want_write(path->mnt);  in filename_create()
3686 		mnt_drop_write(path->mnt);  in filename_create()
3707 	mnt_drop_write(path->mnt);  in done_path_create()
3811 	mnt_userns = mnt_user_ns(path.mnt);  in do_mknodat()
3910 		mnt_userns = mnt_user_ns(path.mnt);  in do_mkdirat()
4015 	error = mnt_want_write(path.mnt);  in do_rmdir()
4031 	mnt_userns = mnt_user_ns(path.mnt);  in do_rmdir()
4037 	mnt_drop_write(path.mnt);  in do_rmdir()
4148 	error = mnt_want_write(path.mnt);  in do_unlinkat()
4168 		mnt_userns = mnt_user_ns(path.mnt);  in do_unlinkat()
4183 	mnt_drop_write(path.mnt);  in do_unlinkat()
4278 		mnt_userns = mnt_user_ns(path.mnt);  in do_symlinkat()
4440 	if (old_path.mnt != new_path.mnt)  in do_linkat()
4442 	mnt_userns = mnt_user_ns(new_path.mnt);  in do_linkat()
4703 	if (old_path.mnt != new_path.mnt)  in do_renameat2()
4715 	error = mnt_want_write(old_path.mnt);  in do_renameat2()
4773 	rd.old_mnt_userns  = mnt_user_ns(old_path.mnt);  in do_renameat2()
4776 	rd.new_mnt_userns  = mnt_user_ns(new_path.mnt);  in do_renameat2()
4791 	mnt_drop_write(old_path.mnt);  in do_renameat2()