linux-ext4 - Re: [PATCH 1/2] ext2: speed up file creates by optimizing rec

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Message-Id: <68AB6BC2-4F3F-46E6-AF17-E26FCB03EE9D@dilger.ca>
Date:	Fri, 10 Dec 2010 16:40:41 -0700
From:	Andreas Dilger <adilger.kernel@...ger.ca>
To:	Ted Ts'o <tytso@....edu>
Cc:	Ric Wheeler <rwheeler@...hat.com>,
	Eric Sandeen <sandeen@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	ext4 development <linux-ext4@...r.kernel.org>,
	Jan Kara <jack@...e.cz>
Subject: Re: [PATCH 1/2] ext2: speed up file creates by optimizing rec_len functions

On 2010-12-10, at 10:55, Ted Ts'o wrote:
> On Wed, Dec 08, 2010 at 08:06:25PM -0500, Ric Wheeler wrote:
>> If we could get rid of ext2 (and eventually ext3), it would actually
>> help reduce the testing matrix and possibly let us invest even more
>> in testing ext4.  Having to maintain three very similar code bases
>> and test them all for correctness and performance is a real pain :)
> 
> A distribution can do that at any time, just by unconfiguring
> CONFIG_EXT2 and/or CONFIG_EXT3 and configuring
> CONFIG_EXT4_USE_FOR_EXT23.   :-)

That doesn't get rid of the maintenance efforts, however.  There are a
constant stream of "patch for ext[234] needs to be ported to ext[342]".

Cheers, Andreas





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