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block: fix dio leak on metadata mapping error

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A failed integrity mapping holds a dio reference, so we need to go
through the full bio ending in case there were previously submitted
bio's in the sequence.

Fixes: 2729a60bbf ("block: don't silently ignore metadata for sync read/write")
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://patch.msgid.link/20260720201057.1862857-3-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Keith Busch 2026-07-20 13:10:54 -07:00 committed by Jens Axboe
parent 75ae18ca94
commit 702a2a9f3d
1 changed files with 4 additions and 2 deletions
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6
block/fops.c
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@ -238,8 +238,10 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
}
if (iocb->ki_flags & IOCB_HAS_METADATA) {
ret = bio_integrity_map_iter(bio, iocb->private);
if (unlikely(ret))
goto fail;
if (unlikely(ret)) {
bio_endio_status(bio, errno_to_blk_status(ret));
break;
}
}
if (is_read) {