iomap: factor out a iomap_writepage_map_block helper

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Split the loop body that calls into the file system to map a block and
add it to the ioend into a separate helper to prefer for refactoring of
the surrounding code.

Note that this was the only place in iomap_writepage_map that could
return an error, so include the call to ->discard_folio into the new
helper as that will help to avoid code duplication in the future.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231207072710.176093-12-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christoph Hellwig 2023-12-07 08:27:07 +01:00 • committed by Christian Brauner

parent 6b865d6530

commit f525152a0f

1 changed files with 43 additions and 27 deletions

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fs/iomap/buffered-io.c

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