linux-kernel - Re: Using devices in Containers

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Message-ID: <87eguzefmg.fsf@x220.int.ebiederm.org>
Date:	Thu, 25 Sep 2014 11:09:43 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	riya khanna <riyakhanna1983@...il.com>
Cc:	LXC development mailing-list 
	<lxc-devel@...ts.linuxcontainers.org>,
	Miklos Szeredi <miklos@...redi.hu>,
	fuse-devel <fuse-devel@...ts.sourceforge.net>,
	Tejun Heo <tj@...nel.org>,
	Seth Forshee <seth.forshee@...onical.com>,
	linux-kernel@...r.kernel.org,
	Serge Hallyn <serge.hallyn@...ntu.com>
Subject: Re: Using devices in Containers

riya khanna <riyakhanna1983@...il.com> writes:

> Is there a plan or work-in-progress to add namespace tags to other
> classes in sysfs similar to net? Does it make sense to add namespace
> tags to kobjects?

Currently the a general nack from gregkh on such work.

Given that sysfs is almost never a fast path I suspect it makes most
sense to filter sysfs in some way (aka bind mounts or fuse) and present
the results to the container.

At the point this is something that we are using a lot and have
demonstrated the usefulness of it and it appears a kernel level
solution would be better it would be worth reopening the disucssion.

Eric
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