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SubjectRe: [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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