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SubjectRe: [PATCH] Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev
On Wed, 12 Aug 2009 06:44:40 -0700
Greg KH <greg@kroah.com> wrote:

> On Wed, Aug 12, 2009 at 08:56:53AM -0400, David Dillow wrote:
> > On Tue, 2009-08-11 at 17:34 -0700, Greg KH wrote:
> > > On Tue, Aug 11, 2009 at 08:25:27PM -0400, David Dillow wrote:
> > > > So use Eric/Arjan's program that does it in 60ms -- you get a
> > > > dynamic /dev, no initrd, fast boot, and no kernel changes
> > > > required.
> > >
> > > Their program only handles it for a reconstruction of /dev based
> > > on sysfs one time at boot. It does not handle things that are
> > > added or discovered by the system after that, you need udev for
> > > that.
> > >
> > > So it's a great hack for boot time stuff, but not a complete /dev
> > > management replacement like this code can be for numerous systems.
> >
> > What systems would those be?
>
> Rescue disks, Embedded systems with no local users, servers with no
> local users, etc. Basically anything that you are only root on, and
> don't care about group permissions.

you're speaking for devtmpfs; the tool we use actually does do group
and owners.


--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org


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