diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 730e572..3afa60e 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1436,18 +1436,9 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio) goto retry_write; } - if (max_sectors < r1_bio->sectors) { - /* We are splitting this write into multiple parts, so - * we need to prepare for allocating another r1_bio. - */ + if (max_sectors < r1_bio->sectors) r1_bio->sectors = max_sectors; - spin_lock_irq(&conf->device_lock); - if (bio->bi_phys_segments == 0) - bio->bi_phys_segments = 2; - else - bio->bi_phys_segments++; - spin_unlock_irq(&conf->device_lock); - } + sectors_handled = r1_bio->sector + max_sectors - bio->bi_iter.bi_sector; atomic_set(&r1_bio->remaining, 1); @@ -1553,10 +1544,17 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio) * as it could result in the bio being freed. */ if (sectors_handled < bio_sectors(bio)) { - r1_bio_write_done(r1_bio); - /* We need another r1_bio. It has already been counted + /* We need another r1_bio, which must be accounted * in bio->bi_phys_segments */ + spin_lock_irq(&conf->device_lock); + if (bio->bi_phys_segments == 0) + bio->bi_phys_segments = 2; + else + bio->bi_phys_segments++; + spin_unlock_irq(&conf->device_lock); + + r1_bio_write_done(r1_bio); r1_bio = alloc_r1bio(mddev, bio, sectors_handled); goto retry_write; } |
