From: Yu Kuai Prepare to unfiy the bio split code, the helper bio_submit_split_bioset() can failed the orginal bio on split errors. The flag name is refer to the r1bio flag name. Signed-off-by: Yu Kuai --- drivers/md/raid10.c | 8 +++++--- drivers/md/raid10.h | 2 ++ 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 859c40a5ecf4..a775a1317635 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -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. diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 3f16ad6904a9..da00a55f7a55 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -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. */ -- 2.39.2