On Thu, Jun 18, 2015 at 04:38:56PM +0200, David Sterba wrote:
> AFAICS, ext4 had added it's own i_version before iversion was added to
> mount:
It is not so unusual that some mount option is introduced as
fs-specific and later re-implemented as generic (another example is
MS_LAZYTIME). The mount(8) cares about the generic options only.
> ext4:
>
> Commit: 25ec56b518257a56d2ff41a941d288e4b5ff9488
> Commit date: Mon Jan 28 23:58:27 2008 -0500
> Subject: ext4: Add inode version support in ext4
>
> util-linux:
>
> Commti: 4fa5e73d16828c94234ba0aeafaec2470f79011c
> Commit date: Thu Nov 27 12:08:44 2008 +0100
> Subject: mount: add i_version support
>
> I don't know the history, this looks like adding the options was not
> coordinated.
I don't remember this change, but MS_I_VERSION is part of the kernel
API (include/uapi/linux/fs.h) so I guess it's fine to support it in
mount(8).
Karel
--
Karel Zak <k...@redhat.com>
http://karelzak.blogspot.com
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