Messages in this thread | | | Date | Mon, 8 Apr 2013 11:25:27 -0700 | From | Greg KH <> | Subject | Re: [PATCH] driver core: add uid and gid to devtmpfs |
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On Mon, Apr 08, 2013 at 01:14:13PM -0500, Rob Landley wrote: > On 04/06/2013 11:56:00 AM, Greg KH wrote: > >From: Kay Sievers <kay@vrfy.org> > > > >Some drivers want to tell userspace what uid and gid should be > >used for > >their device nodes, so allow that information to percolate through the > >driver core to userspace in order to make this happen. This means > >that > >some systems (i.e. Android and friends) will not need to even run a > >udev-like daemon for their device node manager and can just rely in > >devtmpfs fully, reducing their footprint even more. > > Wasn't the entire "devfsd" saga because this was policy and didn't > belong in kernel space?
devfs did a number of things "wrong", not the least being it set a naming policy that was non-standard, and it had unfixable race conditons in it.
> I guess it's not policy if Android wants it? > It's just The One True Way?
Don't be facetious please.
> Or is this because containers allow UID/GID to be redefined, and > thus imposing magic values on userspace can now be mapped away or > something?
I don't understand, what do you mean by this?
greg k-h
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