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Date: Thu, 14 Dec 2017 11:03:23 -0500
From: Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH v2 01/18] overlay: implement fsck utility
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To: Miklos Szeredi <miklos@szeredi.hu>
Cc: Amir Goldstein <amir73il@gmail.com>, "zhangyi (F)" <yi.zhang@huawei.com>, "linux-unionfs@vger.kernel.org" <linux-unionfs@vger.kernel.org>, fstests <fstests@vger.kernel.org>, Eryu Guan <eguan@redhat.com>, "Darrick J. Wong" <darrick.wong@oracle.com>, Miao Xie <miaoxie@huawei.com>
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On Thu, Dec 14, 2017 at 04:48:33PM +0100, Miklos Szeredi wrote:
[..]
> Is it worth preserving origin for non-hardlinks?

I think metadata copy-up feature is one candidate which will require 
preserving origin for non-hardlinks.

Vivek