2981 	struct mount *new_mnt, *root_mnt, *old_mnt;  in SYSCALL_DEFINE2()  local
3008 	root_mnt = real_mount(root.mnt);  in SYSCALL_DEFINE2()
3012 		IS_MNT_SHARED(root_mnt->mnt_parent))  in SYSCALL_DEFINE2()
3014 	if (!check_mnt(root_mnt) || !check_mnt(new_mnt))  in SYSCALL_DEFINE2()
3022 	if (new_mnt == root_mnt || old_mnt == root_mnt)  in SYSCALL_DEFINE2()
3027 	if (!mnt_has_parent(root_mnt))  in SYSCALL_DEFINE2()
3029 	root_mp = root_mnt->mnt_mp;  in SYSCALL_DEFINE2()
3043 	detach_mnt(root_mnt, &root_parent);  in SYSCALL_DEFINE2()
3044 	if (root_mnt->mnt.mnt_flags & MNT_LOCKED) {  in SYSCALL_DEFINE2()
3046 		root_mnt->mnt.mnt_flags &= ~MNT_LOCKED;  in SYSCALL_DEFINE2()
3049 	attach_mnt(root_mnt, old_mnt, old_mp);  in SYSCALL_DEFINE2()