geom_label and directories under /dev

[Poul-Henning Kamp]

In message <20100316141737.GB3010 at a91-153-117-195.elisa-laajakaista.fi>, Jaakko
 Heinonen writes:
>

>> Devfs allows to create multiple entiries with the same name and this
>> is bug, file system shouldn't allow that.
>
>I am not a devfs expert but the current make_dev(9) interface suggest
>that it's responsibility of the caller to ensure sanity of device names.

Correct observation.

We could probably change the API today to allow failures, but I
would hate to see all the device drivers have to sprout code to try
to find an alternative name.

But likewise, I am not sure having DEVFS silently append abitrary
designators for disabiguation, to duplicate names, is a good idea
either, but it may be the least bad idea.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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Never attribute to malice what can adequately be explained by incompetence.