Herbert Poetzl <[email protected]> writes:
> well, while /proc/mounts is a good example that it 'works'
> it isn't a good example for proper design, as the entire
> private namespaces lead to much obfuscation, and having
> the mounts per process, where they actually should be per
> namespace, and to hide the fact that there are different
> namespaces does not help either ...
>
> IMHO a much better design would be to have the namespace
> 'explicit' and link to that one, containig the mounts entry
> btw, this is something which should still be possible
> without breaking anything ...
Actually I agree. That should work for everything except sysctl.
The tricky bit is going to be sticky a pid on the namespace group.
But the patch should be quite simple.
>> So I am trying to turn an ugly design choice into feature :)
>
> hmm, no, you are trying to multipy an ugly design :)
Well only a bit :)
I'm still trying to turn the fact that weird things wound
up in /proc into a feature.
> /proc/self -> YYY/
> /proc/mounts -> self/mounts
>
> (so far nothing new)
>
> /proc/YYY/namespace -> ../namespace-XXX/
> /proc/YYY/mounts -> namespace/mounts
>
> (or alternatively)
>
> /proc/namespace -> namespace-XXX/
> /proc/mounts -> namespace/mounts
Yes. Something like that. It will take a little thinking.
But something that doesn't go away when a process does.
>> In any event this appears to be a way to implement these things while
>> retaining backwards compatibility, with the current implementation,
>> and it looks like it can be implemented fairly cleanly.
>
> I don't see any differences regarding compatibility when
> things like namespaces get explicit ...
Agreed.
Eric
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