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SubjectRe: devfs patch v3
Hi!

> > where <H> is the host controller number, <C> is the channel number,
> > <I> is the SCSI disc ID, <L> is the LUN.
> > For a single partition it looks like this:
> >
> > sd_hHcCiIlLpP
> >
> > where <P> is the partition number. So, for example sd_h0c0i3l0p2
> > corresponds to sdd2 on my system.
>
> Wouldn't it be better to use subdirectories as much as possible?
> I know it will be more difficult to implement, but will make things look
> nicer, readdir faster, etc.
> What about
> /dev/sd/hHcCiIlL
> /dev/sd/hHcCiIlLpP
> /dev/pts/N
> /dev/scd/hHcCiIlL /* current cdrom code doesn't use partitions */
> ...

In case of devfs, only those who are actually installed take up space
in /dev. Is that still problem? (I would not like to have /dev
multi-directory, because it would make manual looking for devices
harder (by one or more chdirs).) Hmmmm. Thinking about sunsite. That
is I believe something like 50 scsi discs, and you probably have about
2 devices per disc (h...lL and h...lLpP), that's about 100 entries,
which is perfectly ok. I think that even 1000 discs would be ok
(altrough not good), since entries are in RAM and readdirs are not
done too much, anyway.

Pavel
--
I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel
Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).

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