linux-ext4 - Re: [PATCH 13/35] fallthru: ext2 fallthru support

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Message-ID: <1271682168.14748.718.camel@macbook.infradead.org>
Date:	Mon, 19 Apr 2010 14:02:48 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Jan Blunck <jblunck@...e.de>
Cc:	Valerie Aurora <vaurora@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Theodore Tso <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 13/35] fallthru: ext2 fallthru support

On Mon, 2010-04-19 at 14:40 +0200, Jan Blunck wrote:
> On Thu, Apr 15, Valerie Aurora wrote:
> 
> > Add support for fallthru directory entries to ext2.
> > 
> > XXX - Makes up inode number for fallthru entry
> > XXX - Might be better implemented as special symlinks
> 
> Better not. David Woodhouse actually convinced me of moving away from the
> special symlink approach. The whiteouts have been implemented as special
> symlinks before.

I certainly asked whether you really need a real 'struct inode' for
whiteouts, and suggested that they should be represented _purely_ as a
dentry with type DT_WHT.

I don't much like the manifestation of that in this patch though,
especially with the made-up inode number. (ISTR I had other
jffs2-specific objections too, which I'll dig out and forward).

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@...el.com                              Intel Corporation

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