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    SubjectRe: devfs and /proc/ide/hda
    On Wed, Feb 28, 2001 at 04:10:23PM +0100, Guest section DW wrote:
    > On Wed, Feb 28, 2001 at 08:52:54PM +1100, Glenn McGrath wrote:
    >
    > > Im running kernel 2.4.1, I have entries like /proc/ide/hda,
    > > /proc/ide/ide0/hda etc irrespective of wether im using devfs or
    > > traditional device names.
    > >
    > > Is always using traditional device names for /proc/ide intentional, or
    > > is it something nobody has gotten around to fixing yet?
    >
    > If only humans look at /proc, and they like typing long names,
    > then there is no objection against changing /proc.
    > As it is, however, quite a few programs look at /proc for
    > information about devices. I don't think it would be a good
    > idea to "fix" /proc and simultaneously break all these programs.

    What it should do is change based on whether devfs is mounted or not. It
    doesn't make *any* sense to have /dev/ide/host0/foo/bar in your
    /proc/partitions entries if you aren't mounting devfs. The /proc/partitions
    entry is the only way I know of for something like LVM to determine which
    devices to scan for Volume Groups. If you can't read /proc/partitions, it
    has to attempt to scan all block devices it recognizes, regardless of
    whether they are actually on the system or not. This can take several
    minutes.

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