[Ocfs2-devel] [PATCH 10/25] vfs: create generic_remap_file_range_touch to update inode metadata

[Christoph Hellwig]

On Mon, Oct 15, 2018 at 09:30:01AM -0700, Darrick J. Wong wrote:
> I originally thought "touch" because it updates [cm]time. :)
> 
> Though looking at the final code, I think this can just be called from
> the end of generic_remap_file_range_prep, so we can skip the export and
> all that other stuff.

I though about that, but the locking didn't seem to quite work out
between xfs and ocfs.

Nevermind the big elephant of actually converting btrfs to the "VFS"
helper - I think if that doesn't work out it is rather questionable
how generic they actually are.