Re: [PATCH 07/11] vfs: copy_file_range should update file timestamps

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On Mon, Dec 03, 2018 at 07:34:12PM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> Timestamps are not updated right now, so programs looking for
> timestamp updates for file modifications (like rsync) will not
> detect that files have changed. We are also accessing the source
> data when doing a copy (but not when cloning) so we need to update
> atime on the source file as well.

This needs to be done inside the method, as a few file systems
do odd things about timestamps (yes, even now that XFS doesn't do that
anymore :)).



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