Re: [PATCH] PCI changes and fixes for 2.5.72

[Albert Cahalan <albert.cahalan@ccur.com>]

Greg writes:

> [PATCH] PCI: Unconfuse /proc
>
> If we are to cope with multiple domains with clashing PCI bus
> numbers, we must refrain from creating two directories of the
> same name in /proc/bus/pci.  This is one solution to the
> problem; busses with a non-zero domain number get it prepended.
>
> Alternative solutions include cowardly refusing to create
> non-domain-zero bus directories, refusing to create directories
> with clashing names, and sticking our heads in the sand and
> pretending the problem doesn't exist.

Please don't do this. It's gross. As long as we have
the bus number mangling, stuff can stay as it is.
When the bus number mangling goes, the old-style
entries can go as well. I'm working on a patch that
makes the old-style entries be symlinks like this:

../../pci%d/bus%d/dev%d/fn%d/config-space

That solves the problem for good, in the right way.
It allows for migration to something sane.