linux-master/fs/namespace.c

88 	struct user_namespace *mnt_userns;
4302 	if (kattr->mnt_userns == m->mnt_sb->s_user_ns)
4441 	if (kattr->mnt_userns) {
4444 		mnt_idmap = alloc_mnt_idmap(kattr->mnt_userns);
4512 	struct user_namespace *mnt_userns;
4552 	mnt_userns = container_of(ns, struct user_namespace, ns);
4553 	if (mnt_userns == &init_user_ns) {
4559 	if (!ns_capable(mnt_userns, CAP_SYS_ADMIN)) {
4564 	kattr->mnt_userns = get_user_ns(mnt_userns);
4640 	put_user_ns(kattr->mnt_userns);
4641 	kattr->mnt_userns = NULL;