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Subject: Re: [PATCH 1/3] [MTD] Flex-OneNAND support
From: Artem Bityutskiy <dedekind@infradead.org>
To: Adrian Hunter <adrian.hunter@nokia.com>
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Date: Thu, 05 Mar 2009 16:46:58 +0200
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On Thu, 2009-03-05 at 15:38 +0200, Adrian Hunter wrote:
> > My point is: for what purpose was EUNCLEAN created by whoever created
> > it and, given that, is its use by MTD appropriate?  Because it does
> > appear that this gets returned all the way to userspace sometimes.
> 
> I have had a look at the use of EUCLEAN and found the following:
> 	1. It does not seem to be defined in POSIX
> 	2. It may have been used by unix variants to indicate an
> attempt to mount a file system whose superblock was not marked
> as clean.
> 	3. In Linux, it is used almost exclusively by MTD, with
> one exception in smbfs, from which it is tempting to conclude that
> smbfs (at least) is using it incorrectly.  There is one web page
> http://www.wlug.org.nz/EUCLEAN where the author suggests ENOMEDIUM
> might be a better choice.
> 
> Can you point me to where EUCLEAN is returned to userspace?  I took
> a quick look and couldn't see it.

But for us, EUCLEAN looks like a good name :-) Probably this is why
tglx choose this error code.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)