Commit 6529d41d authored by Yu Kuai's avatar Yu Kuai Committed by Jens Axboe
Browse files

md/md-linear: convert to use bio_submit_split_bioset() 



Unify bio split code, prepare to fix reordered split IO.

Signed-off-by: default avatarYu Kuai <yukuai3@huawei.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 9e8a5b37

drivers/md/md-linear.c

+3 −12
Original line number Diff line number Diff line
@@ -256,21 +256,12 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio) 


	if (unlikely(bio_end_sector(bio) > end_sector)) {

		/* This bio crosses a device boundary, so we have to split it */

		struct bio *split = bio_split(bio, end_sector - bio_sector,

					      GFP_NOIO, &mddev->bio_set);



		if (IS_ERR(split)) {

			bio->bi_status = errno_to_blk_status(PTR_ERR(split));

			bio_endio(bio);

		bio = bio_submit_split_bioset(bio, end_sector - bio_sector,

					      &mddev->bio_set);

		if (!bio)

			return true;

	}



		bio_chain(split, bio);

		trace_block_split(split, bio->bi_iter.bi_sector);

		submit_bio_noacct(bio);

		bio = split;

	}



	md_account_bio(mddev, &bio);

	bio_set_dev(bio, tmp_dev->rdev->bdev);

	bio->bi_iter.bi_sector = bio->bi_iter.bi_sector -