Date: Wed, 23 May 2001 18:02:09 +0100 From: Brian Somers <brian@Awfulhak.org> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Brian Somers <brian@Awfulhak.org>, Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, freebsd-arch@FreeBSD.ORG, brian@Awfulhak.org Subject: Re: RFC: unit_list routines Message-ID: <200105231702.f4NH29F07183@hak.lan.Awfulhak.org> In-Reply-To: Message from Poul-Henning Kamp <phk@critter.freebsd.dk> of "Wed, 23 May 2001 18:54:31 %2B0200." <3487.990636871@critter>
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> In message <200105231552.f4NFqwF05688@hak.lan.Awfulhak.org>, Brian Somers write
> s:
>
> >I didn't do it that way because the ``usual'' way units are allocated
> >is sequentially. Using bits when there are large numbers of units
> >gets awkward. I figured what was required was something small and
> >simple that would cover the requirements of most/all drivers that
> >need to track their units so that it's easy to find an unused one,
> >and it's easy to allocate/deallocate things.
>
> How does newbus allocate/manage unit numbers ?
I don't think it does. The only way to find out what's in use
(AFAIK) is by looking at every specinfo in dev_hash....
> --
> 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.
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
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