linux-kernel - Re: If not readdir() then what?

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Message-ID: <46193048.6000606@zytor.com>
Date:	Sun, 08 Apr 2007 11:11:20 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Christoph Hellwig <hch@...radead.org>,
	Theodore Tso <tytso@....edu>,
	Ulrich Drepper <drepper@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: If not readdir() then what?

Christoph Hellwig wrote:
> On Sat, Apr 07, 2007 at 04:36:33PM -0400, Theodore Tso wrote:
>> this functionality, and it is highly questionable how useful it is,
>> anyway.  If you use telldir/seekdir and keep the cookie for a long
>> time, even the POSIX-provided guarantees about files that are created
>> and deleted between the telldir() and seekdir() points in time makes
>> its utility highly dubious.
> 
> It's not going to solve anything at all.  We can't stop supporting
> functionality that has been there forever. 

Well, the question is if you can keep the seekdir/telldir cookie around 
as a pointer -- preferrably in userspace, of course.  You would 
presumably garbage-collect them on closedir() -- there is no other point 
at which you could.

I personally suspect that hch is right -- this stuff has been there 
since time immemorial and it'll be hard or impossible to deprecate it.

	-hpa
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