Date: Mon, 09 Feb 2004 00:27:10 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Garance A Drosihn <drosih@rpi.edu> Cc: current@freebsd.org Subject: Re: Review/Test: Pseudo-device unit number management patch Message-ID: <6514.1076282830@critter.freebsd.dk> In-Reply-To: Your message of "Sun, 08 Feb 2004 16:54:23 EST." <p06020404bc4c5fcbfe49@[128.113.24.47]>
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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. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@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.
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