Re: [PATCH v4 12/18] xfs: use DEFINE_FSDAX_AOPS

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On Sat, Dec 23, 2017 at 04:57:04PM -0800, Dan Williams wrote:
> In preparation for the dax implementation to start associating dax pages
> to inodes via page->mapping, we need to provide a 'struct
> address_space_operations' instance for dax. Otherwise, direct-I/O
> triggers incorrect page cache assumptions and warnings.

As mentioned in the previous patch please opencode the ops.

Also now that there are different address space ops please implement
a purely DAX-specific xfs_dax_writepages instead of handling both in
one helper.
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