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Date:   Wed, 17 Jun 2020 14:45:07 -0400
From:   "J. Bruce Fields" <>
To:     Eric Sandeen <>
Cc:     "Darrick J. Wong" <>,
        Christoph Hellwig <>,
        Masayoshi Mizuma <>,
        Theodore Ts'o <>,
        Andreas Dilger <>,
        Alexander Viro <>,
        Masayoshi Mizuma <>,,,
        linux-xfs <>
Subject: Re: [PATCH] fs: i_version mntopt gets visible through /proc/mounts

On Wed, Jun 17, 2020 at 01:28:11PM -0500, Eric Sandeen wrote:
> but mount(8) has already exposed this interface:
>        iversion
>               Every time the inode is modified, the i_version field will be incremented.
>        noiversion
>               Do not increment the i_version inode field.
> so now what?

It's not like anyone's actually depending on i_version *not* being
incremented.  (Can you even observe it from userspace other than over

So, just silently turn on the "iversion" behavior and ignore noiversion,
and I doubt you're going to break any real application.


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