linux-ext4 - Re: [PATCH, RFC V3] ext3: add ioctl to force 32-bit hashes from indexed dirs

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Message-ID: <5159E4AC.7050307@redhat.com>
Date:	Mon, 01 Apr 2013 14:49:00 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	"Theodore Ts'o" <tytso@....edu>
CC:	ext4 development <linux-ext4@...r.kernel.org>,
	Anand Avati <avati@...hat.com>, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH, RFC V3] ext3: add ioctl to force 32-bit hashes from indexed
 dirs

On 4/1/13 2:08 PM, Theodore Ts'o wrote:
> On Mon, Apr 01, 2013 at 01:21:51PM -0500, Eric Sandeen wrote:
>>> This would allow a bit more flexibility than just requiring that the
>>> ioctl be issued just after the opendir(), and allow it just after a
>>> call to rewinddir().
>>
>> I guess I do wonder what real-world use that might have, though.
> 
> To be honest, I can't think of one.  And if the presumption is this is
> just going to be a special case hack, maybe we shouldn't worry about
> the general-use case.
> 
> Thinking about this some more, keeping this simple might be better way
> to go.  It's not like we really want to be encouraging people to use
> this interface....
> 
> What do you think?

Urgh, I guess if we are adding an interface which will live "forever,"
we may as well make it full featured & flexible, as long as the complexity
isn't out of hand, and I don't think it will be in this case.  So I'm at
least half inclined to go ahead & allow toggling it on and off under the
right circumstances, even though it goes against what I think is my better
judgement.  ;)

-Eric

> 						- Ted
> 

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