Commit 74538fda authored by John Garry's avatar John Garry Committed by Jens Axboe
Browse files

md/raid0: Handle bio_split() errors 



Add proper bio_split() error handling. For any error, set bi_status, end
the bio, and return.

Reviewed-by: default avatarYu Kuai <yukuai3@huawei.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarJohn Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20241111112150.3756529-5-john.g.garry@oracle.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 6eb09685

drivers/md/raid0.c

+12 −0
Original line number Diff line number Diff line
@@ -466,6 +466,12 @@ static void raid0_handle_discard(struct mddev *mddev, struct bio *bio) 
		struct bio *split = bio_split(bio,

			zone->zone_end - bio->bi_iter.bi_sector, GFP_NOIO,

			&mddev->bio_set);



		if (IS_ERR(split)) {

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

			bio_endio(bio);

			return;

		}

		bio_chain(split, bio);

		submit_bio_noacct(bio);

		bio = split;
@@ -608,6 +614,12 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio) 
	if (sectors < bio_sectors(bio)) {

		struct bio *split = bio_split(bio, sectors, GFP_NOIO,

					      &mddev->bio_set);



		if (IS_ERR(split)) {

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

			bio_endio(bio);

			return true;

		}

		bio_chain(split, bio);

		raid0_map_submit_bio(mddev, bio);

		bio = split;