iomap: switch iomap_fiemap to use iomap_iter

Rewrite the ->fiemap implementation based on iomap_iter.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2021-08-10 18:33:10 -07:00 • committed by Darrick J. Wong
commit 7892386d35