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To: Jaakko Heinonen <jh@FreeBSD.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 16 Mar 2010 16:17:38 +0200."
	<20100316141737.GB3010@a91-153-117-195.elisa-laajakaista.fi> 
Date: Tue, 16 Mar 2010 14:23:42 +0000
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Cc: Pawel Jakub Dawidek <pjd@FreeBSD.org>, freebsd-geom@FreeBSD.org
Subject: Re: geom_label and directories under /dev 
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In message <20100316141737.GB3010@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
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.