From owner-freebsd-arch  Wed May 23 10:16:23 2001
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Date: Wed, 23 May 2001 13:16:10 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Message-Id: <200105231716.NAA31092@khavrinen.lcs.mit.edu>
To: Brian Somers <brian@Awfulhak.org>
Cc: freebsd-arch@FreeBSD.ORG
Subject: Re: RFC: unit_list routines 
In-Reply-To: <200105231702.f4NH29F07183@hak.lan.Awfulhak.org>
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<<On Wed, 23 May 2001 18:02:09 +0100, Brian Somers <brian@Awfulhak.org> said:

>> 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....

You're looking in the wrong place again.

This may have changed, but my recollection is that new-bus looks for
the greatest allocated unit number and then takes the next one.  Since
this is initialization code, the fact that this is O(n^2) is of no
consequence.

-GAWollman


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