Re: [PATCH 1/2] exit: reparent: fix/update the comments in zap_pid_ns_processes()

[Oleg Nesterov]

On 11/24, Oleg Nesterov wrote:
>
> +	 * sys_wait4() above can't reap the TASK_DEAD children but we do not
> +	 * really care, we could reparent them to the global init. We could
> +	 * exit and reap ->child_reaper even if it is not the last thread in
> +	 * this pid_ns, free_pid(nr_hashed == 0) calls proc_cleanup_work(),
> +	 * pid_ns can not go away until proc_kill_sb() drops the reference.
> +	 *
> +	 * But this namespace can also have other tasks injected by setns().
                                                                    ^^^^^
I meant setns() + fork(), but I hope this is clear.

Oleg.

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