linux-kernel - Re: [RFC PATCH 1/4] Union mount documentation.

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Message-ID: <20070620123223.GB4620@infradead.org>
Date:	Wed, 20 Jun 2007 13:32:23 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Jan Blunck <jblunck@...e.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/4] Union mount documentation.

On Wed, Jun 20, 2007 at 07:29:55AM +0000, Jan Blunck wrote:
> Mounting a file system twice is bad in the first place. This should be
> done by using bind mounts and bind a mounted file system into a union.
> After that the normal locking rules apply (and hopefully work ;).

>From the kernel POV mounting a filesystem twice is the same as doing
a bind mount.
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