dax: advance the iomap_iter on unshare range

Advance the iter and return 0 or an error code for success or
failure.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Link: https://lore.kernel.org/r/20250224144757.237706-8-bfoster@redhat.com
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Brian Foster 2025-02-24 09:47:52 -05:00 • committed by Christian Brauner
commit 9ba439cbdc
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