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SubjectRe: [patch 0/5] union-directory implementation
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On Thu, 21 May 2009, Miklos Szeredi wrote:
> Features:
>
> - top level directory unification only
> - no copy up
> - no whiteouts, opaque dir, etc...
> - create/rename/unlink only work on top layer
> - write works on any layer (without copy up)
> - directory entry deduplication in kernel
> - supports directory seeking (that hell from POSIX)

Forgot an important one:

- filesystem independent, any fs can be part of the union

Thanks,
Miklos


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