From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] fix iptables on systems with discontiguous processor ids
Date: Mon, 10 Oct 2005 15:04:31 -0700 (PDT)
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From: Patrick McHardy <kaber@trash.net>
Date: Mon, 10 Oct 2005 23:41:43 +0200

> Even better would be a function returning the CPU ID as "physical"
> ID, skipping holes in the space. This would allow to save the memory
> for unused CPU IDs. Maybe a small table mapping "virtual" to "phyiscal"
> IDs?

We used to have this and it was really ugly and error prone.

I like the discontiguous cpu ID space much better.

I was so happy when I could blow away those virtual<-->physical cpu ID
mappings.  People got it wrong all the time and it makes hotplug cpu
support more difficult.