Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace

Kirill Korotaev <[email protected]> writes:

>> +
>> +static inline int pspace_task_visible(struct pspace *pspace, struct
> task_struct *tsk)
>> +{
>> +	return (tsk->pspace == pspace) ||
>> +		((tsk->pspace->child_reaper.pspace == pspace) &&
>> +		 (tsk->pspace->child_reaper.task == tsk));
> <<< the logic with child_reaper which can be somehow partly inside pspace... and
> this check is not that abvious.

This is the check for what shows up in /proc.

Given that is how I have explicitly documented things to work, (the
init process straddles the boundary) I fail to see how it is not obvious.  

Eric
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Follow-Ups:
- Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
  - From: Dave Hansen <[email protected]>
- Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
  - From: Kirill Korotaev <[email protected]>

References:
- [RFC][PATCH 0/20] Multiple instances of the process id namespace
  - From: [email protected] (Eric W. Biederman)
- [RFC][PATCH 01/20] pid: Intoduce the concept of a wid (wait id)
  - From: [email protected] (Eric W. Biederman)
- [RFC][PATCH 02/20] pspace: The parent process id of pid 1 is always 0.
  - From: [email protected] (Eric W. Biederman)
- [RFC][PATCH 03/20] pid: Introduce a generic helper to test for init.
  - From: [email protected] (Eric W. Biederman)
- [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
  - From: [email protected] (Eric W. Biederman)
- Re: [RFC][PATCH 04/20] pspace: Allow multiple instaces of the process id namespace
  - From: Kirill Korotaev <[email protected]>

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