[netns] sysfs: issues porting shadow directories on top of 2.6.21-mm2

Greg KH gregkh at suse.de
Thu Jun 21 14:16:37 PDT 2007


On Thu, Jun 21, 2007 at 02:48:10PM -0600, Eric W. Biederman wrote:
> Dave Hansen <hansendc at us.ibm.com> writes:
> 
> > On Mon, 2007-06-18 at 19:57 +0200, Benjamin Thery wrote:
> >> /sys/class/net/          ("real" net class)
> >> /sys/class/net-shadow1/
> >> /sys/class/net-shadow2/
> >
> > This seems like a nice "quick fix", but do we really want to be hacking
> > sysfs around like this?
> >
> > We have the backing sysfs_* entries that are separate from the vfs
> > entities already.  Why can't we simply have different /sys vfsmounts
> > with different views of the backing sysfs_* entries?
> 
> So far this has been easier.  sysfs is so tightly coupled to the kobject
> tree decoupling them is seriously non-trivial.

Tejun just decoupled them, that's why this all changed in the -mm tree,
so it might be a whole lot easier to do now.

thanks,

greg k-h


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