iomap: fix submission side handling of completion side errors

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[ Upstream commit 4ad357e39b ]

The "if (dio->error)" in iomap_dio_bio_iter exists to stop submitting
more bios when a completion already return an error.  Commit cfe057f7db
("iomap_dio_actor(): fix iov_iter bugs") made it revert the iov by
"copied", which is very wrong given that we've already consumed that
range and submitted a bio for it.

Fixes: cfe057f7db ("iomap_dio_actor(): fix iov_iter bugs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Christoph Hellwig 2026-01-26 06:53:38 +01:00 • committed by Sasha Levin

parent 10bb2f5d36

commit 87283ce621

1 changed files with 7 additions and 3 deletions

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fs/iomap/direct-io.c

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