Review/Test: Pseudo-device unit number management patch

[Julian Elischer]

On Mon, 9 Feb 2004, Poul-Henning Kamp wrote:

> In message <p06020404bc4c5fcbfe49@[128.113.24.47]>, Garance A Drosihn writes:
> >At 9:11 AM +0100 2/8/04, Poul-Henning Kamp wrote:
> >>Julian Elischer writes:
> >>  >
> >>  > Previously, nmdm started off with 4 devices visible in /dev now
> >>  > I don't see that.. The old behaviour was intuitive... You saw
> >>  > a device.
> >>
> >>This new behaviour is called a "cloning device" and it doesn't
> >>allocate any resources until they are actually needed, which I
> >>believe is the correct behaviour for pseudo-devices.
> >
> >Could there be some kind of fake "marker-device" sitting there,
> >one which would use basically no resources, and which would
> >change to the real-device when someone opens it? 
> 
> No, that is not possible with the model we have chosen.

s/we/I/

> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.
>