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md/raid0: Handle bio_split() errors

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

Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20241111112150.3756529-5-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
John Garry 2024-11-11 11:21:48 +00:00 committed by Jens Axboe
parent 6eb0968588
commit 74538fdac3
1 changed files with 12 additions and 0 deletions
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12
drivers/md/raid0.c
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@ -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;