[Devel] Re: [patch -mm 08/17] nsproxy: add hashtable

[Cedric Le Goater]

Dave Hansen wrote:
> On Mon, 2006-12-11 at 16:23 +0100, Cedric Le Goater wrote:
>>> Even letting the concept of nsproxy escape to user space sounds wrong.
>>> nsproxy is an internal space optimization.  It's not struct container
>>> and I don't think we want it to become that.
>> i don't agree here. we need that, so does openvz, vserver, people working
>> on resource management.
> 
> I think what those projects need is _some_ way to group tasks.  I'm not
> sure they actually need nsproxies.

not only tasks. ipc, fs, etc.

> Two tasks in the same container could very well have different
> nsproxies.  The nsproxy defines how the pid namespace, and pid<->task
> mappings happen for a given task. 

not only. there are other namespaces in nsproxy.

> The init process for a container is
> special and might actually appear in more than one pid namespace, while
> its children might only appear in one.  That means that this init
> process's nsproxy can and should actually be different from its
> children's.  This is despite the fact that they are in the same
> container.
> 
> If we really need this 'container' grouping, it can easily be something
> pointed to _by_ the nsproxy, but it shouldn't _be_ the nsproxy.

ok so let's add a container object, containing a nsproxy and add 
another indirection ...

C.
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