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md/raid10: add a new r10bio flag R10BIO_Returned

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The new helper bio_submit_split_bioset() can failed the orginal bio on
split errors, prepare to handle this case in raid_end_bio_io().

The flag name is refer to the r1bio flag name.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Yu Kuai
2025-09-10 14:30:49 +08:00
committed by Jens Axboe
parent a6fcc160d6
commit deeeab3028
2 changed files with 7 additions and 3 deletions
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8
drivers/md/raid10.c
View File

@@ -322,10 +322,12 @@ static void raid_end_bio_io(struct r10bio *r10_bio)
struct bio *bio = r10_bio->master_bio;
struct r10conf *conf = r10_bio->mddev->private;
if (!test_bit(R10BIO_Uptodate, &r10_bio->state))
bio->bi_status = BLK_STS_IOERR;
if (!test_and_set_bit(R10BIO_Returned, &r10_bio->state)) {
if (!test_bit(R10BIO_Uptodate, &r10_bio->state))
bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
}
bio_endio(bio);
/*
* Wake up any possible resync thread that waits for the device
* to go idle.

2
drivers/md/raid10.h
View File

@@ -165,6 +165,8 @@ enum r10bio_state {
* so that raid10d knows what to do with them.
*/
R10BIO_ReadError,
/* For bio_split errors, record that bi_end_io was called. */
R10BIO_Returned,
/* If a write for this request means we can clear some
* known-bad-block records, we set this flag.
*/