linux-kernel - Re: [PATCH 17/38] union-mount: Union mounts documentation

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Date:	Thu, 17 Jun 2010 10:01:30 +0200
From:	Alex Riesen <raa.lkml@...il.com>
To:	Valerie Aurora <vaurora@...hat.com>
Cc:	Alexander Viro <viro@...iv.linux.org.uk>,
	Miklos Szeredi <miklos@...redi.hu>,
	Jan Blunck <jblunck@...e.de>,
	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 17/38] union-mount: Union mounts documentation

On Tue, Jun 15, 2010 at 20:39, Valerie Aurora <vaurora@...hat.com> wrote:
> +git://git.kernel.org/pub/scm/fs/ext2/val/e2fsprogs.git
> +
> +Currently, whiteout directory entries are not returned to userland.
> +While the directory type for whiteouts, DT_WHT, has been defined for
> +many years, very little userland code handles them.  Userland will
> +never see fallthru directory entries.

This may be a dumb question (I must admit I did only very little research),
but how does one cleanup the topmost layer of whiteouts and fallthroughs,
so that the entries of lower layer(s) can be made visible again?
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