1584 	return ns_capable(current->nsproxy->mnt_ns->user_ns, CAP_SYS_ADMIN);  in may_mount()
2181 		if ((mnt->mnt_ns->user_ns != &init_user_ns) &&  in do_remount()
2380 	struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;  in do_new_mount()  local
2391 	if (user_ns != &init_user_ns) {  in do_new_mount()
2735 	put_user_ns(ns->user_ns);  in free_mnt_ns()
2748 static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)  in alloc_mnt_ns()  argument
2768 	new_ns->user_ns = get_user_ns(user_ns);  in alloc_mnt_ns()
2773 		struct user_namespace *user_ns, struct fs_struct *new_fs)  in copy_mnt_ns()  argument
2791 	new_ns = alloc_mnt_ns(user_ns);  in copy_mnt_ns()
2798 	if (user_ns != ns->user_ns)  in copy_mnt_ns()
3313 	if (!ns_capable(mnt_ns->user_ns, CAP_SYS_ADMIN) ||  in mntns_install()