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

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Message-ID: <20070408184129.GA20871@lazybastard.org>
Date:	Sun, 8 Apr 2007 20:41:30 +0200
From:	Jörn Engel <joern@...ybastard.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Theodore Tso <tytso@....edu>,
	Ulrich Drepper <drepper@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Neil Brown <neilb@...e.de>
Subject: Re: If not readdir() then what?

On Sun, 8 April 2007 11:11:20 -0700, H. Peter Anvin wrote:
> 
> 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.

Garbage-collecting them on closedir() does not work.  It surprised me as
well, but there seem to be applications that keep the telldir() cookie
around after closedir().  Iirc, "rm -r" was one of them.

Neil, is this correct?

Jörn

-- 
Data dominates. If you've chosen the right data structures and organized
things well, the algorithms will almost always be self-evident. Data
structures, not algorithms, are central to programming.
-- Rob Pike
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