linux-kernel - Re: [PATCH] fs: fix possible inconsistent mount device

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Message-ID: <YvdPlDPX82NsC6/d@infradead.org>
Date:   Sat, 13 Aug 2022 00:15:32 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Yu Kuai <yukuai1@...weicloud.com>
Cc:     Christoph Hellwig <hch@...radead.org>, viro@...iv.linux.org.uk,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, yi.zhang@...wei.com,
        "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH] fs: fix possible inconsistent mount device

On Sat, Aug 13, 2022 at 03:09:58PM +0800, Yu Kuai wrote:
> Thanks for your reply. Do you think it's better to remove the rename
> support from dm? Or it's better to add such limit?

It will probably be hard to entirely remove it.  But documentation
and a rate limited warning discouraging it seems like a good idea.