linux-kernel - Re: [PATCH v2] f2fs: add support for an i

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Date:   Thu, 30 Nov 2023 18:35:34 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Yangtao Li <frank.li@...o.com>
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Wenbo Hong <wenbo.hong@...o.com>,
        linux-f2fs-devel@...ts.sourceforge.net, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] f2fs: add support for an i_version counter

On Thu, Nov 30, 2023 at 02:04:09AM -0700, Yangtao Li wrote:
> NFSv4 mandates a change attribute to avoid problems with timestamp
> granularity, which Linux implements using the i_version counter. This is
> particularly important when the underlying filesystem is fast.
> 
> BTW introduce a new mount option to enable the iversion functionality,
> and disabling it by default.

Why do you want to replicate the mistake made in ext4 and undone by
commit 1ff20307393e ?