linux-kernel - Re: [PATCH] reiserfs: remove duplicate define

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Message-ID: <5268AFFC.8020106@free-electrons.com>
Date:	Thu, 24 Oct 2013 07:28:28 +0200
From:	Michael Opdenacker <michael.opdenacker@...e-electrons.com>
To:	Jan Kara <jack@...e.cz>
CC:	viro@...iv.linux.org.uk, reiserfs-devel@...r.kernel.org,
	linux-kernel@...r.kernel.org, jeffm@...e.com,
	marco.stornelli@...il.com
Subject: Re: [PATCH] reiserfs: remove duplicate define

Hi Jan,

Thank you for your review!

On 10/23/2013 11:50 AM, Jan Kara wrote:
> On Mon 21-10-13 09:54:57, Michael Opdenacker wrote:
>> This patch removes a duplicate define in fs/reiserfs/reiserfs.h
>   Hum, so the duplicate define certainly isn't nice but it's really a
> result of a namespace collision between return codes of two different (sets
> of) functions. So deleting the duplicate isn't really solving the problem,
> just hiding it. So I'd prefer more one of the following two solutions:
> 1) Just ignore the problem. Reiserfs is mostly dead and this isn't likely to
> cause any subtle issues.
> 2) Prefix the return codes somehow so that those two error namespaces don't
> clash. As a bonus you can convert defines to enums but I'm not sure that's
> worth the bother (prefixing is a simple search & replace so that should be
> trivial, well except for the CARRY_ON case).
I like your second solution, adding a prefix to avoid collisions between
two error namespaces, all the more as this looks like a good solution
for similar issues that I found.

Thanks again,

Cheers,

Michael.

-- 
Michael Opdenacker, CEO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
+33 484 258 098

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