checkpoint_restore_ns_capable
if (!checkpoint_restore_ns_capable(&init_user_ns))
if (!checkpoint_restore_ns_capable(&init_user_ns))
if (!checkpoint_restore_ns_capable(&init_user_ns))
if (!checkpoint_restore_ns_capable(tmp->user_ns))
if (write && !checkpoint_restore_ns_capable(pid_ns->user_ns))
if (!checkpoint_restore_ns_capable(current_user_ns()))