Reproducible XFS Filesystems Builds for VMs

[Luca DiMaio]

At the moment we're at v7 of the patch set which adds ability to
populate from a directory, much like ext4:
https://lore.kernel.org/linux-xfs/20250426135535.1904972-1-luca.dimaio1@gmail.com/T/#t

By default atime/ctime/crtime is set to `gettimeofday()` while mtime
is preserved
that can be easily worked around with something like `libfaketime` or
similar libraries to enforce a date

L.

On Thu, Apr 24, 2025 at 3:46 PM Bernhard M. Wiedemann
<bernhardout at lsmod.de> wrote:
>
> On 16/04/2025 16.55, Luca DiMaio via rb-general wrote:
> > At the moment I've opened an RFC in the XFS mailing list, to improve their
> > prototype file functionality, in particular to carry over the inode's timestamps
> > from source:
>
> If these include ctime and atime, those are usually hard to reproduce in
> a filesystem.
> It would probably be good to have an option to clamp timestamps to a
> maximum, similar to tar's --clamp-mtime option or set them all to a
> given constant value.